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Locating and Rectifying the Fault

According to the fault locating methods provided by the device, find out the root cause of the
fault and take proper troubleshooting measures (for example, repairing the line, replacing the
faulty parts, or modifying the configuration data). This is the core part of troubleshooting
activities. For detailed operations, see relevant information therein for the troubleshooting of
services and functions.

Check Whether the Fault Is Rectified

After the troubleshooting measures are taken against the fault, verify and test the affected
services and functions to confirm that the fault is already rectified.

If the fault persists, fill in fault report form and

contact Huawei for assistance

.

Contacting Huawei for Assistance

If the fault persists even after the troubleshooting measures described in this document have
been taken,

contact Huawei for assistance

(Huawei engineers will provide guidance remotely

or on site on troubleshooting).

3.5 Frequently Used Methods for Troubleshooting

There are various of methods for fault location. In fault location, different methods are used
together. Therefore, mastering and using these methods are important for improving the
efficiency of troubleshooting.

To improve fault location efficiency, follow the principles of from external to internal and from
large to small. Specifically, check whether the connection of external cables is reliable and
whether the indicators are normal, check the running status of the system through the console,
and check the running status of each module.

lists the frequently used methods for locating a fault.

Table 3-2

Troubleshooting procedure

Troubleshooting
Procedure

Frequently Used
Methods

Other Methods

Troubleshoot an external
device fault

l

Comparison analysis

l

Interchange analysis

l

Meter test

l

Protocol analysis

l

Alarm analysis

l

Performance analysis

Locate a fault to a specified
device

l

Exclusive method

l

Configuration data
analysis

l

Alarm analysis

l

Performance analysis

Locate a fault to a board

l

Exclusive method

l

Interchange analysis

l

Meter test

Protocol analysis

SmartAX MA5612 Multi-service Access Module
Maintenance Guide

3 Engineers' Must-Read

Issue 01 (2012-07-25)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

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Summary of Contents for SmartAX MA5612

Page 1: ...SmartAX MA5612 Multi service Access Module V800R311C00 Maintenance Guide Issue 01 Date 2012 07 25 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been made in the preparation of this document to ens...

Page 3: ... functions based on the applicable laws and regulations in terms of purpose and scope of usage You are obligated to take considerable measures to ensure that the content of users communications is fully protected when the content is being used and saved Symbol Conventions The following symbols may be found in this document They are defined as follows Symbol Description Indicates a hazard with a hi...

Page 4: ...es and separated by vertical bars A minimum of one or a maximum of all can be selected GUI Conventions Convention Description Boldface Buttons menus parameters tabs window and dialog titles are in boldface For example click OK Multi level menus are in boldface and separated by the signs For example choose File Create Folder Update History Updates between document issues are cumulative Therefore th...

Page 5: ... a GE Port and 5 Troubleshooting Services Transmitted Through a GPON Port are optimized SmartAX MA5612 Multi service Access Module Maintenance Guide About This Document Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd iv ...

Page 6: ...Through a GE Port 29 4 1 Troubleshooting LAN Internet Service 30 4 1 1 Troubleshooting the Failure to Access the Internet 30 4 1 2 Troubleshooting the Failure to Obtain an IP Address by PPPoE Dialup 32 4 1 3 Troubleshooting the Failure to Obtain an IP Address in DHCP Mode 39 4 1 4 Troubleshooting Low Internet Access Rate 44 4 1 5 Troubleshooting Frequent Interruptions in Internet Service 47 4 2 Tr...

Page 7: ...ervice 133 5 2 Troubleshooting Multicast Service 135 5 2 1 Failure to Go Online of a Multicast User 136 5 2 2 Blank Screen After Ordering a Program 144 5 2 3 Pixelation in a Multicast Program 161 5 3 Troubleshooting VoIP PSTN Service 167 5 3 1 No Power Feed After Offhook 167 5 3 2 No Tone After Offhook 170 5 3 3 Busy Tone After Offhook 173 5 3 4 Continuous Dial Tone During Dialing 177 5 3 5 Called...

Page 8: ...Packets Remotely 261 8 13 Capturing Packets by Using Port Mirroring 262 9 FAQ 264 9 1 How Is the Broadband Service Board Powered Off Automatically When the Battery Supplies Power 265 A Appendix 266 A 1 Indicators 267 A 2 Making Cables and Connectors 268 A 2 1 Making Console Ethernet Integrated Cables 268 A 2 2 Making External Power Cables and Ground Cables with Cord End Terminals 269 A 2 3 Making ...

Page 9: ...ls for DC Power Cables 309 A 3 10 Labels for AC Power Cables 310 A 4 Fault Tag 311 SmartAX MA5612 Multi service Access Module Maintenance Guide Contents Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd viii ...

Page 10: ...ncluding the following five parts the preparation for routine maintenance the principle of routine maintenance the principle of parts replacement the principle of troubleshooting and the principle of maintaining an outdoor cabinet 1 3 Maintenance Tools This topic describes the maintenance tools required on site SmartAX MA5612 Multi service Access Module Maintenance Guide 1 Overview Issue 01 2012 0...

Page 11: ... connecting them to a device NOTE It is recommended that you reserve certain installation materials for boards in the equipment room such as the vacuum formed box and the ESD bag Principle of Routine Maintenance When performing routine maintenance comply with the following principles l Keep the equipment room tidy and prevent rodents or other insects from entering the device l Do not install any s...

Page 12: ...outine maintenance for obtaining available spare parts in time especially certain important parts such as boards Principle of Troubleshooting When performing troubleshooting comply with the following principles l Actively collect fault information In case of a fault learn related information about the fault and then make further troubleshooting plan l During troubleshooting record each step and th...

Page 13: ...g the cabinet door in the case of strong wind A strong wind may cause the cabinet door to be opened or closed fiercely This is dangerous to the maintenance engineer and may damage the device Use a door brake to fix the cabinet door in a specified position 1 3 Maintenance Tools This topic describes the maintenance tools required on site Table 1 1 lists the maintenance tools required on site Table 1...

Page 14: ...d bolts The screwdriver has a cross head Diagonal pliers Used as a substitute of scissors to cut insulating tubes or cable ties Cable tie Bundles cables Network cable crimping pliers Clamp phone lines and RJ 45 connectors Network cable tester Tests the connectivity and connections of network cables SmartAX MA5612 Multi service Access Module Maintenance Guide 1 Overview Issue 01 2012 07 25 Huawei P...

Page 15: ...he Cabinet If the MA5612 is installed in a cabinet it is recommended that you clean the air filters regularly to ensure that the cabinet is ventilated properly The air filters include the air filter at the bottom of the cabinet and the air filter on the cabinet door In the case of the outdoor cabinet it is recommended that you clean the air filters every three to six months In the case of the indo...

Page 16: ...the ground system of the device l Pay attention to safety of personnel and equipment during device maintenance Procedure Step 1 Check whether the ground cable is properly connected Connect one end of the multimeter to the ground cable and the other end to the ground bar or ground body Then check whether the grounding is reliable through the check on the voltage between the ground cable and the gro...

Page 17: ...ei technical support engineers For details see 3 6 Contacting Huawei for Assistance 2 2 Cleaning the Connector of the Optical Fiber This topic describes how to clean the connector of the optical fiber Frequent insert and remove or no dustproof treatment for a longtime causes the connector to be dirty and aged which deteriorates the quality of the line Therefore you need to periodically clean the c...

Page 18: ...is recommended to clean it with the ultrasonic cleaner l Keep your hands clean and dry before tailoring the dust free cotton and place the dust free cotton not used in the clean ESD bag or the cleaning tool box for sealed save l After the cleaning cover the optical fiber connector optical transceiver and adapter that will not be immediately used with the dust free caps Procedure Step 1 Clean the e...

Page 19: ... NOTE Use the ultrasonic cleaner to clean the adapters that need to be cleaned uniformly 3 After the cleaning cover the optical fibers that will not be immediately used with the dust free caps End 2 3 Cleaning the Air Filter of the Cabinet If the MA5612 is installed in a cabinet it is recommended that you clean the air filters regularly to ensure that the cabinet is ventilated properly The air fil...

Page 20: ...en raise the air filter and pull it out 2 Flap the thick dust off the air filter and use the vacuum cleaner to remove the remaining dust or use water to wash the air filter and then place the air filter in a well ventilated place to dry it 3 Adjust the air filter position to align with the buckles on the front side and then press the buckles to fix the air filter 4 If the air filter is abnormal ha...

Page 21: ...nnection to reduce contact resistance and to prevent high voltage drops during connection l To avoid electrical shorts keep all tools insulated during connection l The anode and cathode of the batteries are placed properly l When the batteries are being discharged or charged all cables are connected properly and tightly Otherwise a closed circuit may catch fire or overheat In severe cases the batt...

Page 22: ...es are loose or corroded fix or replace them based on site requirements l If the operating temperature of the batteries is lower than 20 C or higher than 50 C identify the cause and rectify the fault NOTE The operating temperature has a significant impact on the life cycle of the batteries The life cycle of a battery reduces by half for every 10 C increase in temperature when the battery is operat...

Page 23: ...ype working LED status and fault LED status The following part takes the SPD28SZ surge protector as an example l If the working LED is green the surge protector works in the normal state l If the work LED is red the over voltage occurs l If the fault LED is off the surge protector works in the normal state l If the fault LED is red the lightning proof function of the surge protector deteriorates o...

Page 24: ...bleshooting procedure of carriers especially their procedure for handling emergencies This topic describes a general troubleshooting procedure In practice however customize and apply the troubleshooting procedure based on carriers requirements 3 5 Frequently Used Methods for Troubleshooting There are various of methods for fault location In fault location different methods are used together Theref...

Page 25: ...es over the network 3 Common operations for locating faults in the MA5612 in addition to l Which operations may completely or partially interrupt the service l Which operations may result in customer complaints l Which emergency or backup measures are available l Which operations may damage the equipment 4 Use of common test tools and instruments including l Multimeter l Line tester l Optical powe...

Page 26: ...ensure that its hardware configuration software version and parameters are the same as the working device running over the existing network In this way when the working device is faulty in an emergency the faulty device can be replaced with the backup device quickly Periodically check the remote access device and the fault diagnosis tools including the testing tools and the packet capture tools to...

Page 27: ...en inserting or removing a board make sure that the board is not connected to any external cables l When connecting or disconnecting optical fibers on the front panel of a board to be replaced do not look directly at the optical port without wearing protective glasses The laser emitted from the optical port can injure your eyes l Do not touch the surface of the printed circuit board PCB l Select t...

Page 28: ...to which the optical transceiver is plugged Built in optical transceivers cannot be directly replaced To replace a built in optical transceiver you need to replace the daughter board or board to which the built in optical transceiver is attached l During the replacement make sure that the optical transceiver is not connected to any optical fibers l Exercise caution when inserting or removing an op...

Page 29: ... make sure that it is not entangled with other cables l If the cable to be replaced is inside a bundle provided that the cabinet is in a good ventilation condition it is suggested to directly cut off the connectors at both ends of the cable using diagonal pliers In this case you need not remove the old cable from the bundle Parts Precautions Suggestions Power cable l If software related operations...

Page 30: ...of an optical fiber if its end face is not clean For operation details see Cleaning the Connector of the Optical Fiber You can use a fiber extractor to remove an optical fiber 3 4 Troubleshooting Procedure Maintenance engineers must be clear about the troubleshooting procedure of carriers especially their procedure for handling emergencies This topic describes a general troubleshooting procedure I...

Page 31: ... definition of emergency of a certain carrier If the fault is an emergency use the pre defined emergency handling methods to recover services in a timely manner Collecting and Recording the Fault Information A clear fault description can speed up fault locating no matter whether a fault is reported to a relevant department of carriers or to Huawei Therefore when a fault occurs collect the fault in...

Page 32: ...s for fault location In fault location different methods are used together Therefore mastering and using these methods are important for improving the efficiency of troubleshooting To improve fault location efficiency follow the principles of from external to internal and from large to small Specifically check whether the connection of external cables is reliable and whether the indicators are nor...

Page 33: ...on analysis compares the faulty components or symptoms with the normal components or symptoms and find out differences to locate the fault For example compare line parameters of faulty services with line parameters of normal services or compare devices at the same network layer Comparison analysis applies to faults that are caused by a single factor Interchange Analysis When a fault cannot be loca...

Page 34: ...for packets so that they can locate the fault based on the obtained packets For example a user fails to order multicast programs After the packets are captured and analyzed it is found that the BRAS discards the Internet Group Management Protocol IGMP packets sent from the user Meter Test Meter test method locates and troubleshoots a fault by comparing the actual values of performance parameters t...

Page 35: ...g Call local Huawei branches or representative offices or contact Huawei Customer Service Center Contact Huawei Customer Service Center support huawei com Before contacting Huawei for technical support fill in the form for reporting a fault shown in Table 3 3 and deliver this form to Huawei by fax or email This can help us rectify the fault quickly for you The more detailed and accurate the fault ...

Page 36: ...pment such as access network equipment transmission equipment and switches This aims to know about the peripheral equipment of the access network Version Information Including but not limited to l Equipment version and patch information Run the display language display version anddisplay patchcommands respectively l Board configuration board software bar code information Run the display board 0 an...

Page 37: ... guidance than that described in this document record all operations including data modification and maintenance operations and provide operation steps time and result Operation 1 xxx Result 1 xxx Operation 2 xxx Result 2 xxx l If a fault is troubleshot under the guidance described in this document attach the specified information here Database file and configuration file Run the save command to s...

Page 38: ...ne identification presentation CLIP is abnormal and there is only one way audio or no audio during a call 4 4 Troubleshooting Fax and Modem Services This chapter describes how to troubleshoot common fax and modem services based on the H 248 protocol 4 5 H 248 Based ISDN PRA Service Troubleshooting The primary rate adaptation PRA is used to access the ISDN users to the media gateway MG through the ...

Page 39: ...n DHCP Mode The user obtains the IP address successfully excludes users with a static IP address The user can access the Internet after replacing the PC l The user s PC is infected with viruses l Internet Explorer IE on the user s PC is faulty l The network interface card NIC in the user s PC is faulty or the PC is slow to respond after running for a long period Web site Certain Web sites fail to ...

Page 40: ...s PC is faulty or the PC is slow to respond after running for a long period Then go to Step 5 l If the user cannot access the Internet go to Step 2 Step 2 Check whether the user can access the Internet by going to various Web sites through the Web server l If the user can access certain Web sites the fault is on the Web site itself Go to Step 5 l If the user cannot access any Web sites go to Step ...

Page 41: ... layer broadband remote access server BRAS is normal Therefore the fault must be located on the link between the MA5612 and the user terminal Use the following guidelines to locate the fault more accurately Fault Location Location Analysis Possible Causes User terminal If the fault does not recur when the user s PC is replaced the fault is on the PC l The dialup software is not properly installed ...

Page 42: ...r Protocol PITP configuration is incorrect l The configured number of MAC addresses that can be dynamically learned by the service port is incorrect l The configuration of the anti MAC address spoofing function is incorrect l An access control list ACL that does not allow transmission of PPPoE packets is configured A MAC address drift occurs A user or BRAS MAC address may drift because of attacks ...

Page 43: ...mmand on the MA5612 to check whether Active State of the Ethernet port is active l If Active State of the Ethernet port is active go to Step 3 3 l If Active State of the Ethernet port is not active go to Step 3 2 2 Run the undo shutdown portid command to activate the Ethernet port Then check whether it is in the active state l If it is in the active state go to Step 3 3 l If it is not in the activ...

Page 44: ...he dialup is successful the original user port is faulty Change the user s port and reconfigure the port data Then go to Step 14 l If the dialup fails go to Step 13 Step 4 Check whether the data configuration on the MA5612 is correct 1 Run the display service port port frameid slotid portid command to check whether the data configuration of the user s service port such as the VLAN ID and port ID i...

Page 45: ...ser l If the function is enabled go to Step 6 l If the function is not enabled run the pitp permit forwarding service port service portid enable command to enable it on the service port Then go to Step 5 6 6 Perform a dialup check l If the dialup is successful go to Step 14 l If the dialup fails go to Step 6 Step 6 Check the user port MAC address configuration on the MA5612 1 Run the display mac a...

Page 46: ...urred on the port that has learned the BRAS MAC address l If the MAC address drift has occurred go to Step 9 2 l If no MAC address drift has occurred go to Step 10 NOTE l The mac addr parameter indicates the MAC address of the BRAS l The F S P parameter in the query result indicates the uplink port where the BRAS MAC address has been learned Generally the port displayed in the query result should ...

Page 47: ...ful go to Step 14 l If the dialup fails go to Step 12 Step 12 Check the data configuration on the upper layer device 1 Check whether the MTU and QoS configurations on the upper layer device such as the upper layer router are correct l If the configurations are correct go to Step 12 3 l If the configurations are incorrect change the settings and ensure that the required data configurations are corr...

Page 48: ...isabled If the fault does not recur when the user s terminal is replaced the fault is on the user s terminal The user s terminal is faulty Link between the user terminal and the MA5612 The link state of the user port is offline A fault has occurred on the subscriber line l The quality of the subscriber line is deteriorated l The subscriber line is old l The subscriber line connectors are loose MA5...

Page 49: ...that on the DHCP server l The link between the MA5612 and the DHCP server is faulty DHCP server The MA5612 can obtain an IP address when the DHCP server is replaced l The IP address resources of the DHCP server are exhausted l The DHCP server is faulty Upper layer device The configuration of the upper layer router is incorrect The maximum transmission unit MTU or the quality of service QoS value c...

Page 50: ... state l If it is in the active state go to Step 3 3 l If it is not in the active state go to Step 3 9 3 Run the display port state portid command to check whether Link of the Ethernet port is online l If Link of the Ethernet port is online go to Step 3 4 l If Link of the Ethernet port is not online go to Step 3 5 4 Check whether the PC can obtain an IP address l If the PC can obtain an IP address...

Page 51: ...user s service port as the VLAN ID and port ID are correct l If the data configuration is correct go to Step 4 3 l If the data configuration is incorrect refer to the following notes to change the configuration data Then go to Step 4 2 NOTE l Run the undo service port command to delete the original service port l Run the service port command to configure a new service port 2 Check whether the PC c...

Page 52: ... the user s MAC address is not contained in the filtering list go to Step 7 2 Check whether the PC can obtain an IP address l If the PC can obtain an IP address go to Step 10 l If the PC fails to obtain an IP address go to Step 7 Step 7 Check the interoperability between the DHCP server and the MA5612 1 Run the display dhcp option82 config command to check whether the DHCP Option82 configuration o...

Page 53: ...al support see Contacting Huawei for Assistance Step 10 End End 4 1 4 Troubleshooting Low Internet Access Rate Low Internet access rate indicates that the attainable Internet access rates for users are lower than the rates provided them This section describes how to troubleshoot low access rates when local area network LAN users access the Internet Fault Location Use the following guidelines to lo...

Page 54: ...2 are low go to Step 4 Step 2 Check the user terminal 1 Replace the user s PC and test whether the Internet access rate is normal l If the Internet access rate is normal the fault is on the PC Check whether the NIC in the user s PC is faulty the PC is infected with viruses the PC is slow to respond after running for a long time or the PC s configuration is low Then go to Step 10 l If the Internet ...

Page 55: ... Indicates the current upstream traffic of the user 2 Use packet capturing software such as Ethereal to capture packets on the user s PC confirm the known traffic source and then eliminate the unknown traffic source You can eliminate the unknown traffic source by checking whether the PC sending the unknown traffic is infected with viruses Then check whether the Internet access rate is restored l I...

Page 56: ... user the user s MAC address has drifted 2 Check whether a loop has formed or there are user attacks on the port that the user s MAC address has drifted to If a loop has formed disconnect it If the port that the MAC address has drifted to is being attacked deactivate the port initiating the attacks Then check whether the Internet access rate is restored l If the Internet access rate is restored go...

Page 57: ...e user port is faulty l The quality of the subscriber line is deteriorated and the packet loss on the subscriber line is severe Internet services on all MA5612 ports are frequently interrupted l The MA5612 is faulty l There is a strong source of interference around the MA5612 l The MAC address has drifted between MA5612 ports Upper layer broadband remote access server BRAS Internet services of all...

Page 58: ...erference such as a wireless base station or a high frequency switch power system around the user l If there is a strong source of interference around the user it may be the cause of the fault Contact the relevant department to handle it Then go to Step 7 l If there is no strong source of interference around the user go to Step 3 Step 3 Change the port for the user and configure the necessary data...

Page 59: ... to If a loop has formed disconnect it If the port that the MAC address has drifted to is being attacked deactivate the port initiating the attacks Then check whether the service is restored l If the service is restored go to Step 7 l If the service is not restored go to Step 6 Step 6 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and the...

Page 60: ...tain types of programs such as HDTV The MA5612 does not receive the report packet and all users in the MVLAN fail to go online The IGMP function of the MVLAN is disabled MA5612 to the terminal The MA5612 does not receive the report packet and a single user fails to go online l The hardware of the port on the MA5612 is faulty l The set top box STB is faulty NOTE Faults can be located according to s...

Page 61: ...e program again Then go to Step 4 NOTE After the preceding steps are performed run the following commands to disable the debugging function huawei config undo debugging igmp huawei config undo terminal debugging huawei config undo terminal monitor Step 4 Locate the fault according to the receiving condition of the report packet and the fault scope l If the MA5612 displays a prompt message of the p...

Page 62: ...ay igmp program name command to query the bandwidth Bandwidth of the ordered program NOTE If User MaxBandWidth is no limit the multicast bandwidth of the user is not limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering another program whose bandwidth is lower than the maximum bandwidth of the user because the bandwidth is...

Page 63: ... type is restricted For example if HDTV watch limit is 0 the user cannot watch HDTV programs l If watch limit is no limit the maximum number of the programs at this level that a user can watch is not limited but the total number of programs that can be concurrently watched is limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of or...

Page 64: ... 1 command to query the user permission for ordering the program If the permission of a program is forbidden or idle the user does not have the permission to order the program If the permission of a program is watch or preview the user can order the program Therefore this is not the cause for this fault Choose one of the following troubleshooting methods according to the purchased service type l I...

Page 65: ... idle You can run the igmp right priority command to set the priority NOTE To set permissions of the user for ordering some programs run the igmp user bind profile 100 profile index list 1 command to bind a correct right profile to the multicast user assume that the multicast user index is 100 and the right profile index is 1 SmartAX MA5612 Multi service Access Module Maintenance Guide 4 Troublesh...

Page 66: ...erform the following steps to add the program to the MVLAN to which the multicast user belongs and then order the program again a Run the display igmp config vlan command to query Program match mode of the program If Program match mode is enable the program is a static program which is manually added If Program match mode is disable the program is a dynamic program which is automatically generated...

Page 67: ...ine the IGMP function may be disabled in the MVLAN In this case run the display igmp config vlan command in the MVLAN mode to query IGMP mode of the MVLAN l If IGMP mode is off the IGMP function is disabled in the MVLAN In this case run the igmp mode command in the MVLAN mode to set IGMP mode to proxy or snooping accordingly Order a program and then go to Step 5 3 l If IGMP mode is proxy or snoopi...

Page 68: ...s in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 9 End End 4 2 2 Blank Screen After Ordering a Program Blank screen after program ordering is a fault that a user cannot watch the program after the user orders a program When blank screen occurs after a user orders a program locate the faul...

Page 69: ...ertain types of programs such as HDTV The number of programs at a level watched by the multicast user reaches the upper limit so that the user cannot order a new program at this level The rate configured in the traffic profile bound to the traffic stream is far lower than the bandwidth of the multicast program There are too many prejoined static programs occupying too many bandwidths Upper layer n...

Page 70: ...E When multiple NEs need to be checked generally locate the fault from lower layer devices to upper layer devices that is in the sequence of user terminal MA5612 multicast router multicast server from segment to segment Table 4 5 Fault scope and troubleshooting method Fault Scope Judgment Criterion Troubleshooting Method User terminal If the following symptoms occur the fault is because the user t...

Page 71: ...erring to 4 2 1 Failure to Go Online of a Multicast User Then go to Step 6 2 Enable the MA5612 debugging function and collect information as follows a Enable the function of multicast user monitoring huawei config terminal monitor huawei config terminal debugging huawei config debugging igmp user b Order the program again Then go to Step 3 3 NOTE After the preceding steps are performed run the fol...

Page 72: ...er is not limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering another program because the remaining bandwidth is insufficient and the program cannot be ordered l Increase the user bandwidth and notify the user of ordering the program again NOTE l You can run the igmp user modify user index max bandwidth command to modify...

Page 73: ...mmand NOTE If Available programs is no limit the user can watch 32 programs concurrently Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of closing some programs and then ordering the program again because the available programs reach the preset maximum value and no more programs can be ordered l Increase the available programs and noti...

Page 74: ... 1 command to query the user permission for ordering the program If the permission of a program is forbidden or idle the user does not have the permission to order the program If the permission of a program is watch or preview the user can order the program Therefore this is not the cause for this fault Choose one of the following troubleshooting methods according to the purchased service type l I...

Page 75: ... idle You can run the igmp right priority command to set the priority NOTE To set permissions of the user for ordering some programs run the igmp user bind profile 100 profile index list 1 command to bind a correct right profile to the multicast user assume that the multicast user index is 100 and the right profile index is 1 SmartAX MA5612 Multi service Access Module Maintenance Guide 4 Troublesh...

Page 76: ... the following steps to add the program to the MVLAN to which the multicast user belongs and then order the program again a Run the display igmp config vlan command to query program match mode of the MVLAN to which the user belongs If Program match mode is enable the program is a static program which is manually added If Program match mode is disable the program is a dynamic program which is autom...

Page 77: ...d NOTE If the maximum number of the programs at a certain level is 0 the user cannot order any programs at this level That is the user s permission to the programs of the corresponding type is restricted For example if HDTV watch limit is 0 the user cannot watch HDTV programs Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering a...

Page 78: ...tended attributes user index command NOTE If watch limit is no limit the maximum number of the programs at this level that a user can watch is not limited but the total number of programs that can be concurrently watched is limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering another program because the ordered program is...

Page 79: ...rams require different bandwidths which are determined by the program sources provided by the program provider l Generally the rate of a common program is lower than 5 Mbit s In this case the default IP traffic profile 6 can be used l An HD program has heavy traffic For example the rate of an HD program is higher than 12 Mbit s In this case a new traffic profile for limiting the rate is required o...

Page 80: ...whether the user can watch the program successfully l If the user can watch the program successfully go to Step 6 l If the user cannot watch the program go to Step 3 5 5 Check whether all NEs are checked according to Table 4 5 l If all NEs are checked go to Step 5 l If not all NEs are checked check the remaining NEs according to Table 4 5 Step 4 Check the upper layer network and devices of the MA5...

Page 81: ...ck whether the user can watch the program successfully l If the user can watch the program successfully go to Step 6 l If the user cannot watch the program go to Step 4 3 3 Check whether all NEs are checked according to Table 4 5 l If all NEs are checked go to Step 5 l If not all NEs are checked check the remaining NEs according to Table 4 5 Step 5 Record the results of the preceding steps in a fa...

Page 82: ...multicast packets are lost 1 On the MA5612 run the display multicast flow statistic ip 224 1 1 1 vlan 3 command to query the traffic statistics of the ordered program on the upstream port assume that the MVLAN ID is 3 and the IP address of the multicast program is 224 1 1 1 l If the queried result is close to the rate of the program traffic the program traffic reaches the MA5612 upstream port It i...

Page 83: ...en the MA5612 and the multicast server is normal Troubleshoot the fault on the line between the MA5612 and the multicast router or the fault on the line between the MA5612 and the multicast server 2 Order the program to check whether the user can watch the program successfully l If the user can watch the program successfully go to Step 6 l If the user cannot watch the program go to Step 3 Step 3 C...

Page 84: ...he common programs and high definition HD programs require different bandwidths which are determined by the program sources provided by the program provider l Generally the rate of a common program is lower than 5 Mbit s In this case the default IP traffic profile 6 can be used l An HD program has heavy traffic For example the rate of an HD program is higher than 12 Mbit s In this case a new traff...

Page 85: ...ccess service the traffic of all services must be lower than or equal to the target rate Otherwise other services may occupy the majority of traffic streams which leads to insufficient multicast bandwidth As a result the pixelation occurs Run the traffic limit command to change the target rate to an appropriate value or run the undo traffic limit command to cancel the traffic limitation on the por...

Page 86: ...ne packet loss occurs due to traffic overflow As a result pixelation occurs l When a user switches between channels frequently traffic of multiple multicast groups exists over the line l After the maximum bandwidth of a user is limited the user cannot order a new program if the bandwidth of the new ordered program is larger than the value the maximum bandwidth the used bandwidth This ensures that ...

Page 87: ...i for Assistance Step 6 End End 4 3 Troubleshooting VoIP PSTN Service This chapter describes how to troubleshoot common voice over IP VoIP public switched telephone network PSTN service faults such as when no tone is played after offhook the busy tone is played after offhook the called party s phone does not ring the calling line identification presentation CLIP is abnormal and there is only one w...

Page 88: ...e ports on the entire MA5612 l If the fault always occurs on certain ports go to Step 2 l If the fault occurs on all the ports on certain boards go to Step 7 l If the fault occurs on all the ports on the entire MA5612 go to Step 8 Step 2 Replace the phone with another and check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 3 Step 3 Perf...

Page 89: ...board is working properly go to Step 10 l If the power board is not working properly go to Step 9 Step 9 Replace the power board with anther one Then check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 10 Step 10 Check MA5612 hardware and the ambient environment 1 Ensure that the device is grounded according to requirements For details ...

Page 90: ... the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 12 End End 4 3 2 No Tone After Offhook This section describes how to troubleshoot the fault where there is no dial tone or only a weak current sound when a phone goes offhook Fault Location Use the followin...

Page 91: ...re Step 1 Identify the fault scope l If the fault occurs on some ports go to Step 2 l If the fault occurs on all ports on some boards go to Step 7 l If the fault occurs on all ports on the device go to Step 8 Step 2 Replace the phone with a functional one and check whether the fault is rectified l If the fault is rectified go to Step 16 l If the fault persists go to Step 3 Step 3 Run the pots loop...

Page 92: ...mmand to check whether the state of the DSP daughter board is Normal l If the state is Normal go to Step 9 l If the state is not Normal go to Step 15 Step 9 Run the display pstn state command to check whether CTPAdmState of the affected POTS port is StartSvc l If CTPAdmState is StartSvc go to Step 11 l If CTPAdmState is not StartSvc go to Step 10 Step 10 Run the undo endservice command to reactiva...

Page 93: ...istency Then check whether the fault is rectified l If the fault is rectified go to Step 16 l If the fault persists go to Step 15 Step 15 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 16 End End 4 3 3 Busy Tone After Offhook Busy tone after offho...

Page 94: ...sults of the following steps Procedure Step 1 Run the display alarm history all command to query the historical alarms and then run the display event history all command to query the historical events Check whether the alarms or events related to the fault are generated SmartAX MA5612 Multi service Access Module Maintenance Guide 4 Troubleshooting Services Transmitted Through a GE Port Issue 01 20...

Page 95: ...on this interface will be interrupted Therefore before resetting the MG interface ensure that no users under this interface are running services l If CTPAdmState is StartSvc go to Step 14 l If CTPAdmState is not StartSvc proceed to Step 5 Step 5 In the H 248 mode run the display if h248 attribute mgid command to check whether MG interface attributes are the same as those configured on the MGC l If...

Page 96: ...he MGC In the H 248 mode run the reset coldstart command to reset the MG interface and make the subscriber register again Then go to Step 14 l If error 502 is not contained in H 248 signaling go to Step 15 NOTE In the protocol error 502 is defined as invalid termination point including RTP termination point and physical termination point On the MGC if the traced H 248 signaling contains error 502 ...

Page 97: ...l out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 16 End End 4 3 4 Continuous Dial Tone During Dialing This section describes how to troubleshoot the fault where the dial tone does not stop when the user begins to dial The dial tone should stop when the user dials a number Location Method Check whether the phone is working properly S...

Page 98: ... of the DSP chip is not set properly go to Step 3 2 2 In ESL user mode run the mgpstnuser attribute set frameid slotid portid dsp input gain dsp input gain value dsp output gain dsp output gain value command to change the gain of the DSP chip Then check whether the service is restored NOTE Set the gain according to the empirical value If no empirical value is available change the gain several time...

Page 99: ...oard is faulty Then go to Step 9 Step 9 User another user port and check whether the service is restored l If the service is restored the original user port is faulty Allocate another port for the user Then go to Step 11 l If the service is not restored go to Step 10 Step 10 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit i...

Page 100: ...stored go to Step 12 l If the service is not restored go to Step 2 Step 2 Perform the 8 4 POTS Subscriber Loop Line Test with the phone on the hook l If the test result shown in Conclusion is Normal go to Step 4 l If the test result shown in Conclusion is not Normal rectify the fault based on the test result Then go to Step 3 NOTE If the test result shown in Conclusion is AB all break off or no ph...

Page 101: ...restored l If the service is restored go to Step 12 l If the service is not restored go to Step 9 Step 9 Check the hardware of the MA5612 and the ambient environment 1 Ensure that the device is grounded properly For details see 2 1 Checking the Grounding of the Device Then check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 9 2 2 Check ...

Page 102: ...uawei for Assistance Step 12 End End 4 3 6 One Way Audio or No Audio During Communication This section describes how to troubleshoot the fault where only one party one way or neither party in a call can hear the other party Regardless of whether there is one way audio or no audio the called party s phone still rings Location Method Use the following guidelines to locate the fault Check whether the...

Page 103: ...ream l If an ACL rule is filtering out the upstream or downstream voice media stream run the undo acl command to delete the ACL rule Then go to Step 4 l If no ACL rule is filtering out the upstream or downstream voice media stream go to Step 10 NOTE The ACL rule issued to a port cannot be deleted but you can cancel the application of the ACL rule by running the undo packet filter command Step 4 Re...

Page 104: ... 10 Step 10 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 11 End End 4 3 7 Noise in Communication Noise in communication indicates that a subscriber hears a strong current noise and broadcast noise in communication but the noise does not include ...

Page 105: ...faulty The electrical interference exists in the device or subscriber line environment The DDF and grounding do not comply with the local standard The input and output gains of the DSP chip do not comply with the local standard Confirm the fault scope SmartAX MA5612 Multi service Access Module Maintenance Guide 4 Troubleshooting Services Transmitted Through a GE Port Issue 01 2012 07 25 Huawei Pro...

Page 106: ...igurations For example the requirements for transmit and receive gains are as follows l China The transmit gain and receive gain of the local network are 0 dB and 3 5 dB respectively The transmit gain and receive gain of the toll network are 0 dB and 7 dB respectively l Other countries and regions Generally the transmit gain the receive gain of the local network and toll network are 0 dB and 7 dB ...

Page 107: ...ulation difference line A leakage line B leakage lines A and B leakage phone set not connected offhook and unknown Step 8 Call each other again to check whether the fault is rectified l If the fault is rectified go to Step 13 l If the fault persists proceed to Step 9 Step 9 Check the voice board for the subscriber who encounters the fault Call each other again to check whether the fault is rectifi...

Page 108: ...ep 2 In VoIP mode run the display qos ip and display qos vlan commands to check whether the QoS priority of the voice service is set properly l If the QoS priority of the voice service is set properly go to Step 4 l If the QoS priority of the voice service is not set properly go to Step 3 NOTE l When packet loss occurs due to network congestion the packets whose QoS priorities are the lowest are d...

Page 109: ...nd whether the transmission devices are normal If there are certain faults on the network or devices rectify the faults and ensure that the MG can be pinged from the MA5612 and that no serious packet loss occurs Then check whether the service is restored l If the service is restored go to Step 7 l If the service is not restored go to Step 6 Step 6 Record the results of the preceding steps in a fau...

Page 110: ...ep 15 l If the service is not restored go to Step 2 Step 2 Perform a 8 4 POTS Subscriber Loop Line Test with the phone on the hook l If the test result shown in Conclusion is Normal the subscriber line is normal Then go to Step 4 l If the test result shown in Conclusion is not Normal rectify the fault based on the test result Then go to Step 3 NOTE When you rectify the fault based on the test resu...

Page 111: ...tes of a normal port Then go to Step 8 NOTE Users can run the pstnport electric batset command to configure electrical attributes of multiple PSTN ports in batches Different countries and regions require different electrical attributes Therefore ensure that the configured electrical attributes comply with local standards and interconnected devices use the same electrical attributes Step 8 Check wh...

Page 112: ...ssis keeps insects or rodents out of the cabinet Then go to Step 13 3 l If there is no evidence of water or vermin go to Step 13 4 3 Take the phone off the hook to check whether the fault is rectified l If the fault is rectified go to Step 15 l If the fault persists go to Step 13 4 4 Check whether there is any source of high frequency electromagnetic interference exists around the MA5612 and the s...

Page 113: ...e when operating it and check whether the fax machine is faulty l If the user followed the instructions and the fax machine is normal go to Step 3 l If the user did not follow the instructions or the fax machine is faulty go to Step 2 SmartAX MA5612 Multi service Access Module Maintenance Guide 4 Troubleshooting Services Transmitted Through a GE Port Issue 01 2012 07 25 Huawei Proprietary and Conf...

Page 114: ...he display fax modem parameters command to query the public fax parameter configurations Verify that the value for Rfc2198 start mode is consistent with that configured on the peer end The RFC 2198 protocol is used to improve data transmission reliability and service quality using the redundancy transmission mechanism This function must be enabled on both the MDU and the softswitch if the function...

Page 115: ...sion is Normal go to Step 11 l If the test result shown in Conclusion is not Normal the subscriber line is faulty Connect a fax machine to the main distribution frame MDF and perform a test to determine the location of the fault Rectify the fault as needed for example by replace the subscriber line Then go to Step 10 Step 10 Check whether the service is restored l If the service is restored go to ...

Page 116: ...led party phone with a modem Use the calling party phone to call the called party modem Check whether the modem tone can be heard when the call is connected l If the modem tone can be heard go to Step 4 l If the modem tone cannot be heard the called party modem cannot automatically start the modem service Check the modem configurations to ensure that it can automatically start modem service Then g...

Page 117: ...the data plan l If the configurations are consistent with the data plan go to Step 8 l If they are not consistent with the data plan go to Step 7 Step 7 Have the MGC maintenance engineer modify the modem service data configurations on the MGC so that they are consistent with the data plan Then check whether the service is restored l If the service is restored go to Step 12 l If the service is not ...

Page 118: ...er the IUA link is normal 4 Check whether the configuration of the PRA users is correct 5 Check whether the board connecting the PRA users is normal 6 Check whether the physical line is faulty Procedure Step 1 Run the display if h248 state command to query the status of the MG interface l If the MG interface is in Normal state it indicates that the MG interface is normal l If the MG interface is i...

Page 119: ... Step 6 Check whether the physical line is connected properly Check whether the E1 line is connected properly and whether the cables are worn out Perform a loopback test to check whether the E1 port on the E1 line is faulty For details see 8 2 Performing a Loopback on an E1 Port and 8 1 Performing a Loopback on an E1 Line End 4 6 SIP Based ISDN PRA Service Fault Troubleshooting The PRA is used to ...

Page 120: ...splay sipprauser command to check the configuration of the PRA users Check whether the settings of the following parameters are correct l SIP interface ID l Phone number Step 4 Run the display board command to query the status of the board In normal cases the board is in Normal state If the board is not in Normal state troubleshoot the fault according to the following procedure l Remove and insert...

Page 121: ...ervice This chapter describes how to troubleshoot common voice over IP VoIP public switched telephone network PSTN service faults such as when no tone is played after offhook the busy tone is played after offhook the called party s phone does not ring the calling line identification presentation CLIP is abnormal and there is only one way audio or no audio during a call 5 4 Troubleshooting Fax and ...

Page 122: ... Fault Location Location Analysis Possible Causes User terminal A user fails to obtain the IP address excludes users with a static IP address For the details about how to troubleshoot this fault see the following sections l 5 1 2 Troubleshooting the Failure to Obtain an IP Address by PPPoE Dialup l 5 1 3 Troubleshooting the Failure to Obtain an IP Address in DHCP Mode The user obtains the IP addre...

Page 123: ... an IP Address in DHCP Mode Then go to Step 1 2 2 Check whether the user can access the Internet l If the user can access the Internet successfully go to Step 5 l If the user cannot access the Internet go to Step 1 3 3 Replace the user s PC with a test PC that can access the Internet in the same mode as the user s PC Then check whether the user can access the Internet l If the user can access the ...

Page 124: ... technical support seeContacting Huawei for Assistance Step 5 End End 5 1 2 Troubleshooting the Failure to Obtain an IP Address by PPPoE Dialup This section describes how to troubleshoot a failure to obtain an IP address by point to point over Ethernet PPPoE dialup mode When a user accessing the Internet in LAN mode on a fiber to the building FTTB or fiber to the curb FTTC network fails to obtain ...

Page 125: ...the MA5612 and the upper layer BRAS Use the following guidelines to address the fault more accurately Fault Location Location Analysis Possible Causes MA5612 The configured service port data is inconsistent with the data plan The configured service port data such as the VLAN ID is incorrect The uplink port forwards no service stream to the upper layer device The uplink port on the MA5612 is not ad...

Page 126: ...ialup emulation test is not success go to Step 4 NOTE If the result of the dialup emulation test is timeout parameter negotiation failure user authentication failure offline requested by the peer end or other errors the fault is located on the upper layer device of the MA5612 l If the result of the dialup emulation test is success go to Step 2 Step 2 Check the user terminal 1 Replace the user s PC...

Page 127: ...the Ethernet port is not online go to Step 3 7 6 Perform a dialup check l If the dialup is successful go to Step 15 l If the dialup fails go to Step 14 7 In ETH mode run the display port state portid command to check whether the duplex mode rate network cable adaptation mode of the Ethernet port are consistent with those of the user terminal l If they are consistent go to Step 3 9 l If they are in...

Page 128: ...plink port to the upstream VLAN whose configuration must be the same as the configuration on the upper layer device Then go to Step 4 4 4 Perform a dialup check l If the dialup is successful go to Step 15 l If the dialup fails go to Step 5 Step 5 Check the PITP configuration on the MA5612 1 Run the display pitp config command to check whether the current global PITP function is enabled l If the fu...

Page 129: ...he dialup is successful go to Step 15 l If the dialup fails go to Step 8 Step 8 Check whether a user s MAC address has drifted on the MA5612 1 In global config mode run the display location mac addr command to check multiple times more than three times is recommended whether a MAC address drift occurred on the port that has learned the user s MAC address l If the MAC address drift has occurred go ...

Page 130: ... check whether a static MAC address is configured on the service port of the user NOTE If a static MAC address and the anti MAC address spoofing function are configured on a service port at the same time the service port user cannot access the Internet l If a static MAC address is configured on the service port go to Step 10 3 l If no static MAC address is configured on the service port go to Step...

Page 131: ... upstream VLAN whose configuration must be the same as the configuration on the upper layer device Then go to Step 12 4 4 Perform a dialup check l If the dialup is successful go to Step 15 l If the dialup fails go to Step 13 Step 13 Check the data configuration on the upper layer device 1 Check whether the MTU and QoS configurations on the upper layer device such as the upper layer router are corr...

Page 132: ...ser terminal Use the following guidelines to locate the fault Fault Location Location Analysis Possible Causes User terminal If the fault does not recur when the user s PC is replaced the fault is on the PC The network interface card NIC in the PC is faulty or disabled If the fault does not recur when the user s terminal is replaced the fault is on the user s terminal The user s terminal is faulty...

Page 133: ...onfiguration on the ONU is inconsistent with that on the DHCP server l The link between the ONU and the DHCP server is faulty DHCP server The ONU can obtain an IP address when the DHCP server is replaced l The IP address resources of the DHCP server are exhausted l The DHCP server is faulty OLT The configured service port data is inconsistent with the data plan The configured service port data suc...

Page 134: ...ETH mode run the display port state portid command on the ONU to check whether Active State of the Ethernet port is active l If Active State of the Ethernet port is active go to Step 3 3 l If Active State of the Ethernet port is not active go to Step 3 2 2 Run the undo shutdown portid command to activate the Ethernet port Then check whether it is in the active state l If it is in the active state ...

Page 135: ...obtain an IP address l If the PC can obtain an IP address go to Step 11 l If the PC fails to obtain an IP address go to Step 4 9 Replace the user port and then check whether the PC can obtain an IP address l If the PC can obtain an IP address the original user port is faulty Change the user s port and reconfigure the port data Then go to Step 11 l If the PC fails to obtain an IP address go to Step...

Page 136: ...occurs disconnect the loop or deactive port is initiating the attacks Then perform another dialup check and check whether the PC can obtain an IP address l If the PC can obtain an IP address go to Step 11 l If the PC fails to obtain an IP address go to Step 6 Step 6 Check the security configuration on the ONU 1 Run the display security mac filter command to check whether the user s MAC address is ...

Page 137: ...ream VLAN whose configuration must be the same as the configuration on the upper layer device Then go to Step 8 4 4 Check whether the PC can obtain an IP address l If the PC can obtain an IP address go to Step 11 l If the PC fails to obtain an IP address go to Step 9 Step 9 Check the data configuration on the upper layer device 1 Check whether the data configuration on the upper layer device is co...

Page 138: ...r s PC is replaced l The PC s network interface card NIC is faulty l The user s PC is infected with viruses l The computer does not meet the minimum configuration requirements The fault does not recur when the user terminal is replaced The user terminal is faulty Link between user terminal and ONU Packet loss on the subscriber line is severe A fault has occurred on the subscriber line l The qualit...

Page 139: ... access rate is normal l If the Internet access rate is normal go to Step 11 l If the Internet access rate is low go to Step 3 Step 3 Check whether the line between the ONU and the user terminal is normal 1 Check whether cyclic redundancy code CRC loss occurs on the subscriber line l If CRC loss occurs on the subscriber line go to Step 3 2 l If CRC loss does not occur on the subscriber line go to ...

Page 140: ...p command to query the corresponding traffic profile Then check whether the committed information rate CIR reaches the bandwidth that the user applied for l If the CIR is less than the bandwidth that the user applied for the traffic profile bound to the user is incorrect Go to Step 5 3 l If the CIR is equal to the bandwidth that the user applied for go to Step 6 3 Run the undo service port command...

Page 141: ...idth configured in the DBA profile 3 Check whether the bandwidth occupied by the uplink port on the ONU reaches the allocated DBA bandwidth l If the bandwidth occupied by the uplink port on the ONU almost reaches the permitted maximum bandwidth the bandwidth of the uplink port on the site is the cause of the fault Go to Step 7 4 l If the bandwidth occupied by the uplink port on the ONU is lower th...

Page 142: ...is deteriorated l The subscriber line is old l The subscriber line connectors are loose l There is a strong source of interference around the user ONU The Internet service on a single port is frequently interrupted l The user port is faulty l The quality of the subscriber line is deteriorated and the packet loss on the subscriber line is severe Internet services on all ONU ports are frequently int...

Page 143: ...he user terminal is connected properly or whether the line is old Reconnect the line properly or replace the line as needed Then check whether the service is restored l If the service is restored go to Step 7 l If the service is not restored go to Step 2 3 3 Check whether there is a strong source of interference such as a wireless base station or a high frequency switch power system around the use...

Page 144: ... the command indicates the BRAS s MAC address l The F S P parameter in the query result indicates the uplink port that learned the BRAS MAC address Normally the port displayed in the query result is the uplink port on the ONU connected to the BRAS If the displayed port is not the uplink port the BRAS MAC address has drifted 2 Check whether a loop has formed or whether there are user attacks on the...

Page 145: ...g multicast entry This is generally caused by incorrect multicast configurations on the ONU l If the ONU does not receive the report packet the multicast link fails This is mainly caused by incorrect ONU software configurations faulty physical link between the ONU and the modem and hardware faults of terminals Table 5 1 describes fault symptoms and possible causes when a multicast user in an FTTB ...

Page 146: ...CAUTION To facilitate fault report save the results of the following steps Procedure Step 1 On the ONU run the display igmp user user index command to query the multicast user status State l If State is block the multicast user is blocked In this case run the undo igmp user block command to unblock the user Then go to Step 2 l If State is offline go to Step 3 NOTE If you need to block a multicast ...

Page 147: ... st bandwi dth of the user is lower than the required bandwi dth of the ordered progra m If one of the following symptoms occurs the fault is because the maximum multicast bandwidth of the user is lower than the required bandwidth of the ordered program l The ONU receives the report packet and displays the user fails to pass bandwidth CAC l The maximum bandwidth of the user is lower than the bandw...

Page 148: ...e is restricted For example if HDTV watch limit is 0 the user cannot watch HDTV programs l If watch limit is no limit the maximum number of the programs at this level that a user can watch is not limited but the total number of programs that can be concurrently watched is limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of orderi...

Page 149: ...command to query the user permission for ordering the program If the permission of a program is forbidden or idle the user does not have the permission to order the program If the permission of a program is watch or preview the user can order the program Therefore this is not the cause for this fault Choose one of the following troubleshooting methods according to the purchased service type l If t...

Page 150: ...idle You can run the igmp right priority command to set the priority NOTE To set permissions of the user for ordering some programs run the igmp user bind profile 100 profile index list 1 command to bind a correct right profile to the multicast user assume that the multicast user index is 100 and the right profile index is 1 SmartAX MA5612 Multi service Access Module Maintenance Guide 5 Troublesho...

Page 151: ...orm the following steps to add the program to the MVLAN to which the multicast user belongs and then order the program again a Run the display igmp config vlan command to query Program match mode of the program If Program match mode is enable the program is a static program which is manually added If Program match mode is disable the program is a dynamic program which is automatically generated up...

Page 152: ...ne the IGMP function may be disabled in the MVLAN In this case run the display igmp config vlan command in the MVLAN mode to query IGMP mode of the MVLAN l If IGMP mode is off the IGMP function is disabled in the MVLAN In this case run the igmp mode command in the MVLAN mode to set IGMP mode to proxy or snooping accordingly Order a program and then go to Step 5 3 l If IGMP mode is proxy or snoopin...

Page 153: ...ault Report Form fill out the entire form and then submit the form to Huawei for technical support seeContacting Huawei for Assistance Step 9 End End 5 2 2 Blank Screen After Ordering a Program Blank screen after program ordering is a fault that a user cannot watch the program after the user orders a program When blank screen occurs after a user orders a program in an FTTB or FTTC network locate t...

Page 154: ...ms such as HDTV The number of programs at a level watched by the multicast user reaches the upper limit so that the user cannot order a new program at this level The rate configured in the traffic profile bound to the traffic stream is far lower than the bandwidth of the multicast program There are too many prejoined static programs occupying too many bandwidths OLT l The program ordered is not in...

Page 155: ...ffic reaches the ONU user port NOTE The following prerequisites must be met before you run the display statistics service port command to query the traffic statistics so as to prevent the queried results from being affected by other services l The multicast user is not watching other programs l The service port does no carry other heavy traffic services For example the service of downloading files...

Page 156: ... be incorrect Reset the STB or use a functional STB 3 Order a program to check whether the user can watch the program successfully l If the user can watch the program successfully go to Step 7 l If the user cannot watch the program go to Step 2 4 4 Check whether all NEs are checked according to Table 5 5 l If all NEs are checked go to Step 6 l If not all NEs are checked check the remaining NEs acc...

Page 157: ...emaining bandwidth the maximum bandwidth the used bandwidth is lower than the bandwidth of the ordered program NOTE If User MaxBandWidth is no limit the multicast bandwidth of the user is not limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering another program because the remaining bandwidth is insufficient and the progra...

Page 158: ...NU NOTE If Available programs is no limit the user can watch 32 programs concurrently Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of closing some programs and then ordering the program again because the available programs reach the preset maximum value and no more programs can be ordered l Increase the available programs and notify ...

Page 159: ...d on the ONU to query the user permission for ordering the program If the permission of a program is forbidden or idle the user does not have the permission to order the program If the permission of a program is watch or preview the user can order the program Therefore this is not the cause for this fault Choose one of the following troubleshooting methods according to the purchased service type l...

Page 160: ...n run the igmp right priority command on the ONU to set the priority NOTE To set permissions of the user for ordering some programs run the igmp user bind profile 100 profile index list 1 command on the ONU to bind a correct right profile to the multicast user assume that the multicast user index is 100 and the right profile index is 1 SmartAX MA5612 Multi service Access Module Maintenance Guide 5...

Page 161: ...r belongs l Perform the following steps to add the program to the MVLAN to which the multicast user belongs and then order the program again a Run the display igmp config vlan command on the ONU to query program match mode of the MVLAN to which the user belongs If Program match mode is enable the program is a static program which is manually added If Program match mode is disable the program is a ...

Page 162: ...he ONU NOTE If the maximum number of the programs at a certain level is 0 the user cannot order any programs at this level That is the user s permission to the programs of the corresponding type is restricted For example if HDTV watch limit is 0 the user cannot watch HDTV programs Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of order...

Page 163: ...tes user index command on the ONU NOTE If watch limit is no limit the maximum number of the programs at this level that a user can watch is not limited but the total number of programs that can be concurrently watched is limited Choose one of the following troubleshooting methods according to the purchased service type l Notify the user of ordering another program because the ordered program is no...

Page 164: ...quire different bandwidths which are determined by the program sources provided by the program provider l Generally the rate of a common program is lower than 5 Mbit s In this case the default IP traffic profile 6 can be used l An HD program has heavy traffic For example the rate of an HD program is higher than 12 Mbit s In this case a new traffic profile for limiting the rate is required or the d...

Page 165: ...ed static programs is 500 Mbit s l You can obtain the maximum downstream bandwidth of multicast programs provided by the PON port following the steps below a On the OLT run the display igmp config global command to query the bandwidth management function Bandwidth management switch b On the OLT run the display igmp bandwidth port command to query the bandwidth Max bandwidth assigned to the PON por...

Page 166: ... program is being watched or previewed by a user however its attributes cannot be modified 4 Check whether the user can watch the program successfully l If the user can watch the program successfully go to Step 7 l If the user cannot watch the program go to Step 3 5 5 Check whether all NEs are checked according to Table 5 5 l If all NEs are checked go to Step 6 l If not all NEs are checked check t...

Page 167: ...gram to the MVLAN to which the multicast user belongs and then order the program again a Run the display igmp config vlan command on the OLT to query program match mode of the MVLAN to which the user belongs If Program match mode is enable the program is a static program which is manually added If Program match mode is disable the program is a dynamic program which is automatically generated upon ...

Page 168: ...n the OLT run the display igmp bandwidth port command to query the bandwidth Max bandwidth assigned to the PON port and the used bandwidth Used bandwidth The remaining bandwidth the maximum bandwidth the used bandwidth is lower than the bandwidth of the ordered program l The bandwidth assigned to the PON port is very small which does not meet the total bandwidth requirement of ONU multicast users ...

Page 169: ...ch the program successfully go to Step 7 l If the user cannot watch the program go to Step 4 3 3 Check whether all NEs are checked according to Table 5 5 l If all NEs are checked go to Step 6 l If not all NEs are checked check the remaining NEs according to Table 5 5 Step 5 Check the upper layer network and devices of the OLT 1 Find the possible cause according to judgment criteria described in Ta...

Page 170: ...der a program again and then check whether the user can watch the program successfully l If the user can watch the program successfully go to Step 7 l If the user cannot watch the program go to Step 5 3 3 Check whether all NEs are checked according to Table 5 5 l If all NEs are checked go to Step 6 l If not all NEs are checked check the remaining NEs according to Table 5 5 Step 6 Record the result...

Page 171: ...o determine the location at which multicast packets are lost 1 On the OLT run the display multicast flow statistic vlan 3 ip 224 1 1 1 command to query the traffic statistics of the ordered program on the upstream port assume that the MVLAN ID is 3 and the IP address of the multicast program is 224 1 1 1 l If the queried result is close to the rate of the program traffic the program traffic reache...

Page 172: ...he multicast server 2 Order the program to check whether the user can watch the program successfully l If the user can watch the program successfully go to Step 7 l If the user cannot watch the program go to Step 2 3 3 Check whether packets are lost on the upstream port of the OLT l If the packets are lost on the upstream port of the OLT go to Step 6 l If no packet is lost on the upstream port of ...

Page 173: ...the majority of traffic streams which leads to insufficient multicast bandwidth As a result the pixelation occurs The common programs and high definition HD programs require different bandwidths which are determined by the program sources provided by the program provider l Generally the rate of a common program is lower than 5 Mbit s In this case the default IP traffic profile 6 can be used l An H...

Page 174: ...ervice the traffic of all services must be lower than or equal to the target rate Otherwise other services may occupy the majority of traffic streams which leads to insufficient multicast bandwidth As a result the pixelation occurs On the ONU run the traffic limit command to change the target rate to an appropriate value or run the undo traffic limit command on the ONU to cancel the traffic limita...

Page 175: ...et loss occurs due to traffic overflow As a result pixelation occurs l When a user switches between channels frequently traffic of multiple multicast groups exists over the line l After the maximum bandwidth of a user is limited the user cannot order a new program if the bandwidth of the new ordered program is larger than the value the maximum bandwidth the used bandwidth This ensures that the pro...

Page 176: ... such as when no tone is played after offhook the busy tone is played after offhook the called party s phone does not ring the calling line identification presentation CLIP is abnormal and there is only one way audio or no audio during a call Prerequisites The ONU and the OLT must communicate with each other normally If a fault occurs in communication between the ONU and the OLT all the services o...

Page 177: ... ports on the entire MA5612 l If the fault always occurs on certain ports go to Step 2 l If the fault occurs on all the ports on certain boards go to Step 7 l If the fault occurs on all the ports on the entire MA5612 go to Step 8 Step 2 Replace the phone with another and check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 3 Step 3 Perfo...

Page 178: ...oard is working properly go to Step 10 l If the power board is not working properly go to Step 9 Step 9 Replace the power board with anther one Then check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 10 Step 10 Check MA5612 hardware and the ambient environment 1 Ensure that the device is grounded according to requirements For details s...

Page 179: ...the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 12 End End 5 3 2 No Tone After Offhook This section describes how to troubleshoot the fault where there is no dial tone or only a weak current sound when a phone goes offhook Fault Location Use the following...

Page 180: ...e Step 1 Identify the fault scope l If the fault occurs on some ports go to Step 2 l If the fault occurs on all ports on some boards go to Step 7 l If the fault occurs on all ports on the device go to Step 8 Step 2 Replace the phone with a functional one and check whether the fault is rectified l If the fault is rectified go to Step 16 l If the fault persists go to Step 3 Step 3 Run the pots loop ...

Page 181: ...mand to check whether the state of the DSP daughter board is Normal l If the state is Normal go to Step 9 l If the state is not Normal go to Step 15 Step 9 Run the display pstn state command to check whether CTPAdmState of the affected POTS port is StartSvc l If CTPAdmState is StartSvc go to Step 11 l If CTPAdmState is not StartSvc go to Step 10 Step 10 Run the undo endservice command to reactivat...

Page 182: ...stency Then check whether the fault is rectified l If the fault is rectified go to Step 16 l If the fault persists go to Step 15 Step 15 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 16 End End 5 3 3 Busy Tone After Offhook Busy tone after offhoo...

Page 183: ...ults of the following steps Procedure Step 1 Run the display alarm history all command to query the historical alarms and then run the display event history all command to query the historical events Check whether the alarms or events related to the fault are generated SmartAX MA5612 Multi service Access Module Maintenance Guide 5 Troubleshooting Services Transmitted Through a GPON Port Issue 01 2...

Page 184: ...n this interface will be interrupted Therefore before resetting the MG interface ensure that no users under this interface are running services l If CTPAdmState is StartSvc go to Step 14 l If CTPAdmState is not StartSvc proceed to Step 5 Step 5 In the H 248 mode run the display if h248 attribute mgid command to check whether MG interface attributes are the same as those configured on the MGC l If ...

Page 185: ...e MGC In the H 248 mode run the reset coldstart command to reset the MG interface and make the subscriber register again Then go to Step 14 l If error 502 is not contained in H 248 signaling go to Step 15 NOTE In the protocol error 502 is defined as invalid termination point including RTP termination point and physical termination point On the MGC if the traced H 248 signaling contains error 502 i...

Page 186: ... out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 16 End End 5 3 4 Continuous Dial Tone During Dialing This section describes how to troubleshoot the fault where the dial tone does not stop when the user begins to dial The dial tone should stop when the user dials a number Location Method Check whether the phone is working properly St...

Page 187: ...f the DSP chip is not set properly go to Step 3 2 2 In ESL user mode run the mgpstnuser attribute set frameid slotid portid dsp input gain dsp input gain value dsp output gain dsp output gain value command to change the gain of the DSP chip Then check whether the service is restored NOTE Set the gain according to the empirical value If no empirical value is available change the gain several times ...

Page 188: ...rd is faulty Then go to Step 9 Step 9 User another user port and check whether the service is restored l If the service is restored the original user port is faulty Allocate another port for the user Then go to Step 11 l If the service is not restored go to Step 10 Step 10 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it ...

Page 189: ...ored go to Step 12 l If the service is not restored go to Step 2 Step 2 Perform the 8 4 POTS Subscriber Loop Line Test with the phone on the hook l If the test result shown in Conclusion is Normal go to Step 4 l If the test result shown in Conclusion is not Normal rectify the fault based on the test result Then go to Step 3 NOTE If the test result shown in Conclusion is AB all break off or no phon...

Page 190: ...estored l If the service is restored go to Step 12 l If the service is not restored go to Step 9 Step 9 Check the hardware of the MA5612 and the ambient environment 1 Ensure that the device is grounded properly For details see 2 1 Checking the Grounding of the Device Then check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 9 2 2 Check w...

Page 191: ...wei for Assistance Step 12 End End 5 3 6 One Way Audio or No Audio During Communication This section describes how to troubleshoot the fault where only one party one way or neither party in a call can hear the other party Regardless of whether there is one way audio or no audio the called party s phone still rings Location Method Use the following guidelines to locate the fault Check whether the p...

Page 192: ...eam l If an ACL rule is filtering out the upstream or downstream voice media stream run the undo acl command to delete the ACL rule Then go to Step 4 l If no ACL rule is filtering out the upstream or downstream voice media stream go to Step 10 NOTE The ACL rule issued to a port cannot be deleted but you can cancel the application of the ACL rule by running the undo packet filter command Step 4 Red...

Page 193: ...10 Step 10 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 11 End End 5 3 7 Noise in Communication Noise in communication indicates that a subscriber hears a strong current noise and broadcast noise in communication but the noise does not include t...

Page 194: ...aulty The electrical interference exists in the device or subscriber line environment The DDF and grounding do not comply with the local standard The input and output gains of the DSP chip do not comply with the local standard Confirm the fault scope SmartAX MA5612 Multi service Access Module Maintenance Guide 5 Troubleshooting Services Transmitted Through a GPON Port Issue 01 2012 07 25 Huawei Pr...

Page 195: ...gurations For example the requirements for transmit and receive gains are as follows l China The transmit gain and receive gain of the local network are 0 dB and 3 5 dB respectively The transmit gain and receive gain of the toll network are 0 dB and 7 dB respectively l Other countries and regions Generally the transmit gain the receive gain of the local network and toll network are 0 dB and 7 dB r...

Page 196: ...lation difference line A leakage line B leakage lines A and B leakage phone set not connected offhook and unknown Step 8 Call each other again to check whether the fault is rectified l If the fault is rectified go to Step 13 l If the fault persists proceed to Step 9 Step 9 Check the voice board for the subscriber who encounters the fault Call each other again to check whether the fault is rectifie...

Page 197: ... 2 In VoIP mode run the display qos ip and display qos vlan commands to check whether the QoS priority of the voice service is set properly l If the QoS priority of the voice service is set properly go to Step 4 l If the QoS priority of the voice service is not set properly go to Step 3 NOTE l When packet loss occurs due to network congestion the packets whose QoS priorities are the lowest are dis...

Page 198: ...d whether the transmission devices are normal If there are certain faults on the network or devices rectify the faults and ensure that the MG can be pinged from the MA5612 and that no serious packet loss occurs Then check whether the service is restored l If the service is restored go to Step 7 l If the service is not restored go to Step 6 Step 6 Record the results of the preceding steps in a faul...

Page 199: ...p 15 l If the service is not restored go to Step 2 Step 2 Perform a 8 4 POTS Subscriber Loop Line Test with the phone on the hook l If the test result shown in Conclusion is Normal the subscriber line is normal Then go to Step 4 l If the test result shown in Conclusion is not Normal rectify the fault based on the test result Then go to Step 3 NOTE When you rectify the fault based on the test resul...

Page 200: ...es of a normal port Then go to Step 8 NOTE Users can run the pstnport electric batset command to configure electrical attributes of multiple PSTN ports in batches Different countries and regions require different electrical attributes Therefore ensure that the configured electrical attributes comply with local standards and interconnected devices use the same electrical attributes Step 8 Check whe...

Page 201: ...s keeps insects or rodents out of the cabinet Then go to Step 13 3 l If there is no evidence of water or vermin go to Step 13 4 3 Take the phone off the hook to check whether the fault is rectified l If the fault is rectified go to Step 15 l If the fault persists go to Step 13 4 4 Check whether there is any source of high frequency electromagnetic interference exists around the MA5612 and the subs...

Page 202: ...e is blurred or the fax rate is low Location Method Use the following guidelines to locate the fault CAUTION To facilitate fault report save the results of the following steps Procedure Step 1 Confirm that the user followed the instructions given in the user manual of the fax machine when operating it and check whether the fax machine is faulty SmartAX MA5612 Multi service Access Module Maintenanc...

Page 203: ...figured on the peer end The fax coding and decoding mode can be the transparent transmission mode or the T 38 mode l Run the display fax modem parameters command to query the public fax parameter configurations Verify that the value for Rfc2198 start mode is consistent with that configured on the peer end The RFC 2198 protocol is used to improve data transmission reliability and service quality us...

Page 204: ...o to Step 14 l If the service is not restored go to Step 9 Step 9 In the onhook state perform a 8 4 POTS Subscriber Loop Line Test l If the test result shown in Conclusion is Normal go to Step 11 l If the test result shown in Conclusion is not Normal the subscriber line is faulty Connect a fax machine to the main distribution frame MDF and perform a test to determine the location of the fault Rect...

Page 205: ...her the two parties can communicate with each other normally l If the two parties can communicate with each other go to Step 2 l If the two parties cannot communicate with each other address the problem by referring to 4 3 Troubleshooting VoIP PSTN Service Step 2 Replace the called party phone with a modem Use the calling party phone to call the called party modem Check whether the modem tone can ...

Page 206: ...e command to modify the DSP parameter configurations l If the service is restored go to Step 12 l If the service is not restored go to Step 6 Step 6 Have an MGC maintenance engineer check whether the modem service data configurations on the MGC are consistent with the data plan l If the configurations are consistent with the data plan go to Step 8 l If they are not consistent with the data plan go...

Page 207: ... The packetization duration can be queried on the MGC Then check whether the service is restored l If the service is restored go to Step 12 l If the service is not restored go to Step 11 Step 11 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 12 En...

Page 208: ... display the corresponding alarm information when the MA5612 generates an alarm 6 4 Service Board Is in the Failed State This section describes how to troubleshoot the fault when the service board of the MA5612 is in the failed state 6 5 A Service Board Fails to Register This topic describes how to troubleshoot a fault when a service board of an MA5612 fails to register 6 6 Repeated Board Reset Th...

Page 209: ...NU is in the configuration restoration stage The first status is initial Soon the initial is complete and the ONU enters the config state In the config state the ONU capability and configuration data are restored The duration of the config state is determined by the amount of the data configured on the ONU If the configuration restoration is successful the ONU transitions from the config state to ...

Page 210: ...ngle ONU or some ONUs connected to an OLT fail to go online l The SN or password configured on the OLT is different from the actual SN or password of the ONU hence the ONU fails to pass authentication and go online l The actual distance between the ONU and OLT exceeds the ranging compensation distance configured on the OLT l The OLT deactivates the ONU All the ONUs connected to a PON port of an OL...

Page 211: ...ted to a PON port of an OLT fail to go online l The backbone fiber is bent excessively l The backbone fiber connector is not clean l The quality of branch fiber splicing is poor For example the splicing point has air bubbles l Different types of backbone fiber connectors are interconnected l The multi mode optical fiber is used as the backbone fiber l A backbone fiber break occurs l The optical sp...

Page 212: ...gnals LOS l 0x2e112007 The distribute fiber is broken or OLT can not receive expected optical signals from GPON ONT LOSi l 0x2e11a00a The loss of acknowledgement PLOAM message with ONTi LOAi occurs Step 2 Check for the possible causes on the OLT and troubleshoot the faults accordingly If the ONU still fails to go online after that proceed to Step 3 Possible Cause Judgment Criterion Troubleshooting...

Page 213: ...of a GPON port is from 0 km to 20 km l According to Class B the maximum logical reach of a GPON port must not exceed 60 km and the difference between the minimum logical reach and maximum logical reach must not exceed 20 km The OLT deactivates the ONU Run the display ont info command to query the ONU information It is found that Control flag is displayed as deactivated Run the ont activate command...

Page 214: ...e optical fiber connector is not clean NOTE An unclean optical fiber connector will cause excessive attenuation and abnormal reflection 1 Test the backbone fiber and branch fiber by using the OTDR It is found that the reflection and return loss are abnormal 2 Check the optical fiber connector on site by using the optical fiber endface detector It is found that the optical fiber connector is not cl...

Page 215: ...t is found that the optical fiber is not firmly connected or PC connector blue and APC connector green are interconnected l If the optical fiber is not firmly connected reconnect the optical fiber firmly l If different types of optical fiber connectors are interconnected replace the incompatible connector with a compatible one or replace relevant devices such as the optical splitter NOTE In the sc...

Page 216: ...rmined by the number of ONTs connected but by the split ratio of optical splitters When an optical splitter is connected to the ODN attenuation occurs and the split ratio of the optical splitter needs to be calculated l Protocols specify that the receive optical power of the OLT should not exceed 15 dB In addition the difference between the maximum optical power and the minimum optical power shoul...

Page 217: ...r break occurs 1 Check the branch fiber by using the OTDR It is found that a branch fiber break occurs 2 Check the optical fiber on site It is found that the optical fiber is broken or not connected Reconnect the branch optical fiber Step 4 Check for the possible causes on the ONU and troubleshoot the faults accordingly If the ONU still fails to go online after that proceed to Step 5 Possible Caus...

Page 218: ...m the optical power meter a continuous mode ONU or irregular mode ONU exists Replace the rogue ONU with a normal one The information SN for ONU authentication conflicts hence the power on ONU fails to go online The 0x2e305015 The authentication information of the ONTs conflicts alarm is generated on the OLT Replace the ONU with conflicted SN The ONU hardware is faulty If either of the following tw...

Page 219: ...of the ONU is broken or bent excessively Check the Patch cord of the ONU It is found that the Patch cord is broken or bent excessively Replace the Patch cord of the ONU Step 5 Record the results of the preceding steps in the form for reporting a fault see Fault Report Form fill out the entire form and then submit the form to Huawei for technical support seeContacting Huawei for Assistance Step 6 E...

Page 220: ...ed to the same PON port of an OLT fail to recover their configurations The optical attenuation is over large or small and the ONU can normally go online but fails to recover its configurations The possible causes are as follows l The ODN is not properly planned For example the split ratio network coverage and attenuation difference are not planned within the proper ranges l The backbone fiber is b...

Page 221: ...figurations after that go to Step 4 Possible Cause Judgment Criterion Troubleshooting Method The optical fiber connector is not clean NOTE An unclean optical fiber connector will cause excessive attenuation and abnormal reflection 1 Test the backbone fiber and branch fiber by using the OTDR It is found that the reflection and return loss are abnormal 2 Check the optical fiber connector on site by ...

Page 222: ... fiber connectors are interconnected replace the incompatible connector with a compatible one or replace relevant devices such as the optical splitter NOTE In the scenario of the CATV service it is recommended that you use APC connectors green only The multi mode optical fiber is used NOTE If the multi mode optical fiber is used as the backbone or branch optical fiber the optical signal attenuates...

Page 223: ... to meet Huawei s ODN planning requirements and protocol requirements The optical splitter is faulty or the connectors on the optical splitter are not clean Measure the input and output optical power of the optical splitter by using the optical power meter It is found that the actual attenuation exceeds the theoretical attenuation NOTE The faults in the optical splitter cannot be located by the OT...

Page 224: ...ed during such configurations The ONU profiles together can be regarded as a virtual ONU Subsequent services are configured based on this virtual ONU Inconsistency between the capability set configured in the ONU profiles and the actual ONU capabilities involves the following two situations l The configured capability set outmatches the actual ONU capabilities If the ONU is bound to such ONU profi...

Page 225: ... 3 In the GPON mode of the OLT run the ont modify command to bind the ONU profiles to the ONU Step 2 Check whether Match state of the ONU is displayed as match l If Match state of the ONU is displayed as match go to Step 4 l If Match state of the ONU is displayed as mismatch proceed to Step 3 Step 3 Record the results of the preceding steps in the form for reporting a fault see Fault Report Form f...

Page 226: ...l The multi mode optical fiber is used as the branch fiber l The ODN is not properly planned For example the split ratio network coverage and attenuation difference are not planned within the proper ranges l The optical attenuation of the optical path is excessively small l A branch fiber break occurs l The optical splitter is faulty or the connectors on the optical splitter are not clean All the ...

Page 227: ... in Class C Procedure Step 1 Check for the possible causes on the OLT and troubleshoot the faults accordingly If the ONU still fails to be auto discovered by the OLT after that proceed to Step 2 Possible Cause Judgment Criterion Troubleshooting Method The ONU auto discovery function is disabled on the PON port Run the display port info command to query the information about the PON port It is foun...

Page 228: ...on the PON port is disabled Run the display port info command to query the information about the PON port It is found that Laser switch is in the Off state Run the port laser switch command to enable the laser on the PON port NOTE By default the laser on a GPON port is enabled The PON port is faulty If either of the following two situations occurs the PON port is faulty l Run the display port stat...

Page 229: ...ptical fiber on site It is found that the optical fiber is bent excessively Route and bundle the optical fiber in a proper manner The optical fiber is not firmly connected or different types of optical fiber connectors are interconnected NOTE If the optical fiber is not firmly connected or different types of optical fiber connectors are interconnected the attenuation and reflection will be excessi...

Page 230: ... optical path is excessively small the optical power received by the ONU will exceed the overload optical power of the ONU l Such a situation occurs usually in labs where the OLT and ONU may be directly connected to each other through a short optical fiber If either of the following two situations occurs the optical attenuation of the optical path is excessively small l Measure the receive optical...

Page 231: ...actual split ratio is 1 128 which exceeds the maximum split ratio of the board l The optical attenuation difference of two optical paths exceeds 15 dB Optimize the ODN to meet Huawei s ODN planning requirements and protocol requirements The optical splitter is faulty or the connectors on the optical splitter are not clean Measure the input and output optical power of the optical splitter by using ...

Page 232: ...e Judgment Criterion Troubleshooting Method The ONU is not powered on Check the power supply of the ONU It is found that the power supply of the ONU fails or is turned off Restore the power supply of the ONU The ONU hardware is faulty If either of the following two situations occurs the ONU hardware is faulty l The LEDs of the ONU are off when the ONU is powered on l After the ONU is replaced with...

Page 233: ... bent excessively Check the Patch cord of the ONU It is found that the Patch cord is broken or bent excessively Replace the Patch cord of the ONU Step 4 Record the results of the preceding steps in the form for reporting a fault see Fault Report Form fill out the entire form and then submit the form to Huawei for technical support seeContacting Huawei for Assistance Step 5 End End 6 1 3 GPON ONU F...

Page 234: ...r the connectors on the optical splitter are not clean All the ONUs connected to a PON port on an OLT frequently go online and offline l The backbone fiber is bent excessively l The backbone fiber connector is not clean l Different types of backbone fiber connectors are interconnected l The multi mode optical fiber is used as the backbone fiber l The optical splitter is faulty or the connectors on...

Page 235: ...ils to function properly after that proceed to Step 3 Possible Cause Judgment Criterion Troubleshooting Method The PON port is faulty If either of the following two situations occurs the PON port is faulty l Run the display port state command to query the status of the PON port It is found that abnormal items exist in the query result For example the laser status Laser state is abnormal and the tr...

Page 236: ... will be excessively large 1 Test the backbone fiber and branch fiber by using the OTDR It is found that abnormal return loss points exist on the optical fiber 2 Check the optical fiber connectors on site It is found that the optical fiber is not firmly connected or PC connector blue and APC connector green are interconnected l If the optical fiber is not firmly connected reconnect the optical fib...

Page 237: ...d not exceed 15 dB In addition the difference between the maximum optical power and the minimum optical power should not exceed 15 dB The ODN does not meet the requirements of the ODN link plan or GPON Class B l Three level splitting exists in the ODN l The network coverage of the ODN exceeds 20 km by far l The split ratio exceeds the maximum split ratio that the board allows Assuming that the max...

Page 238: ...Check whether the ONU is faulty or whether the power voltage is unstable Replace the ONU or ensure that the power supply of the ONU is normal Step 5 Record the results of the preceding steps in the form for reporting a fault see Fault Report Form fill out the entire form and then submit the form to Huawei for technical support seeContacting Huawei for Assistance Step 6 End End 6 2 NMS Fails to Man...

Page 239: ...7 l If there is not a route from the MA5612 to the NMS server run the ip route static command to add a static route from the MA5612 to the NMS server Then go to Step 6 Step 6 Check whether the fault is rectified l If the fault is rectified go to Step 12 l If the fault persists go to Step 7 Step 7 Run the display arp command to check on the MA5612 whether the ARP information about the NMS exists in...

Page 240: ...and to add the NMS server to the target host list for traps l Run the display snmp agent trap enable command to check whether traps can be sent to the NMS from the device If it is disable run the snmp agent trap enable command to enable trap sending from the device to the NMS Step 11 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then...

Page 241: ...larm or event is filtered the alarm or event will not be reported to the CLI terminal will not be saved in the alarm or event history records In addition the corresponding trap packet will not be sent to the NMS Step 5 Check whether the alarm masking policy configured on the NMS is proper and make sure that the alarm masking policy is configured properly Then check whether the alarm information ca...

Page 242: ...gurations are correct If it is confirmed that system configurations are incorrect run the board delete frameid slotid command to delete the original configurations after the system displays a message indicating that the board is automatically found run the board confirm frameid slotid command to confirm the board Then go to Step 3 Step 3 Wait for five minutes and then check whether the service boa...

Page 243: ... l If the new board is in the normal state the original board is faulty Go to Step 10 l If the fault persists go to Step 9 Step 9 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 10 End End 6 5 A Service Board Fails to Register This topic describes ...

Page 244: ...y go to Step 4 Step 4 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for Assistance Step 5 End End 6 6 Repeated Board Reset This section describes how to troubleshoot the repeated reset of a service board on the MA5612 Location Method Use the following guidelines to ...

Page 245: ...device to improve ventilation effect or add cooling equipment to ensure that the device works in a proper ambient temperature Then check whether the fault is rectified l If the fault is rectified go to Step 11 l If the fault persists go to Step 5 Step 5 Check whether the board is properly installed l If the board is properly installed go to Step 7 l If the board is not properly installed install t...

Page 246: ...he device are interrupted and the device cannot be managed by the network management system NMS Location Method Use the following guidelines to locate the fault 1 Check whether the user has issued a command to reset the device 2 Check whether the power supply for the device is normal 3 Check whether the device temperature is within the acceptable range CAUTION To facilitate fault report save the r...

Page 247: ...vice is normal go to Step 3 l If the voltage of the device is too low the device may be reset Go to Step 5 NOTE The working voltage range of the system is as follows l AC power supply 90 V to 264 V l DC power supply 38 4 V to 72 V Step 3 Check whether the device temperature is too high l If the device temperature is too high the system will be automatically reset to protect system components form ...

Page 248: ... blocks and DIP switches The ESCM monitors the environment parameters of the device This document provides the troubleshooting guide when the ESCM is in Fault state 7 2 EPS30 4815AF Being in Fault State The EPS30 4815AF power system is used in the AC powered cabinet to convert the AC into the DC and then distribute the power to implement DC power distribution This document provides the troubleshoo...

Page 249: ...rt mode of the device is emu go to Step 3 l If the serial port mode of the device is not emu go to Step 2 Step 2 Run the serial mode emu command to set the serial port mode to emu Run the display emu command to check whether the ESCM is in Normal state l If the ESCM is in Normal state it indicates that the fault occurs due to the improper serial port mode Go to Step 10 l If the ESCM is not in Norm...

Page 250: ...the settings of the DIP switch on the ESCM are the same as the settings of the secondary nodes of the EMU on the MA5612 Run the display emu command to check whether the ESCM is in Normal state l If the ESCM is in Normal state go to Step 10 l If the ESCM is not in Normal state go to Step 9 Step 9 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire f...

Page 251: ...the baud rate of the serial port on the MA5612 Run the display emu command to check whether the EPS30 4815AF is in Normal state l If the EPS30 4815AF is in Normal state go to Step 10 l If the EPS30 4815AF is not in Normal state go to Step 5 Step 5 Check whether the dedicated environment monitoring cable connecting the EPS30 4815AF to the serial port on the MA5612 is aged exposed or broken out l If...

Page 252: ...n the MA5612 Run the display emu command to check whether the EPS30 4815AF is in Normal state l If the EPS30 4815AF is in Normal state go to Step 10 l If the EPS30 4815AF is not in Normal state go to Step 9 Step 9 Record the results of the preceding steps in a fault report see Fault Report Form fill out the entire form and then submit it to Huawei for technical support see Contacting Huawei for As...

Page 253: ...bscriber loop line test is used to test the performance or indexes such as the capacitance and resistance between lines of the subscriber loop line The test result is used to check whether the subscriber loop line is faulty 8 5 POTS Subscriber Search Tone Test The search tone test allows an MA5612 to send a voice signal with a certain frequency and amplitude to a plain old telephone service POTS l...

Page 254: ...ives at the device When the multicast user fails to request for programs the result of the multicast emulation test is used to locate faults 8 11 DHCP Dialup Emulation Test In Dynamic Host Configuration Protocol DHCP dialup emulation an MA5612 simulates a DHCP client and applies for an IP address from a DHCP server The DHCP emulation tests connectivity between the MA5612 and the DHCP server and ve...

Page 255: ... line the broadcast storm may occur if the E1 port is not isolated Therefore it is recommended that you cancel the loopback in time after the loopback test is complete Precautions None Procedure Step 1 Connect the transmit and receive ends of the tested E1 line to the E1 self loop line or the corresponding ports on the bit error meter and ensure that they are in good contact Step 2 Verify the loop...

Page 256: ...NOTE The emulation terminal is optional When you perform a remote loopback if no service stream is carried on the tested link you can use the emulation terminal to emulate the peer device to send packets In addition you can determine the link status according to the indication on the meter When you perform a local loopback the emulation terminal is not needed but you can still determine the link s...

Page 257: ...k is started on a port the user of the peer device should hear the voice of himself herself when making calls you can determine whether the tested link is accessible If an emulation terminal such as the E10 meter is used you can determine the result according to the indication on the meter l Configure a local loopback on the E1 port 1 Optional perform this operation when using the emulation termin...

Page 258: ...emote loopback the signals that are transmitted from the peer device to the port processing module are directly sent back to the peer device to check whether the board that houses the E1 port can communicate with the peer device normally Figure 8 3 shows the remote loopback on the E1 port Figure 8 3 Remote loopback on the E1 port Board Peer device or emulation terminal Port processing module Backp...

Page 259: ...r the functions or parameters of the internal circuit are normal This helps locate the faults 8 4 POTS Subscriber Loop Line Test The POTS subscriber loop line test is used to test the performance or indexes such as the capacitance and resistance between lines of the subscriber loop line The test result is used to check whether the subscriber loop line is faulty Context l The user port to be tested...

Page 260: ...t according to the preceding conclusions Reference In many cases the voice service faults such as there is no tone after offhook or there is noise during the communication are caused by the subscriber loop line Therefore the subscriber loop line test is used to check whether the subscriber loop line is normal This helps locate the faults 8 5 POTS Subscriber Search Tone Test The search tone test al...

Page 261: ...n run the command in step 3 to stop the test Step 4 Check whether the POTS loop line is faulty based on the test result End Reference Figure 8 4 shows the procedure for the search tone test Figure 8 4 Procedure for the search tone test The test procedure is as follows l After a maintenance engineer starts the search tone test the test module sends a voice signal indicated by the blue wave line in ...

Page 262: ... result will be affected if the port goes off hook during the test l The signal tone test cannot be performed when other tests are being performed such as the circuit line test subscriber line test emulation test search tone test and loop test l No signal tone test is allowed on a port that is prohibited or is in a loopback Procedure Step 1 Run the pots signal tone test frameid slotid portid comma...

Page 263: ... faults Prerequisites l Voice service has been configured l If the dialup mode of a public switched telephone network PSTN port is set to DTMF only the loop test cannot be performed NOTE Run the display pstnport attribute command in pstnport mode to query Dial Mode on the PSTN port l Do not take the phone off the hook during a loop test Otherwise the test result may be inaccurate Context A loop te...

Page 264: ...an choose one of the preceding emulation tests to locate faults Procedure Step 1 Run the pots emulational config command in test mode to configure the parameters for the call emulation test The type of the call emulation alert tone and DTMF number must be set before the automatic call emulation test is performed on the port By default the type of the call emulation alert tone is voice announcement...

Page 265: ...d parties respectively In this case the system emulates on hook and off hook by the calling and called parties without manual operations and stops the test after the call lasts several minutes The test phone is placed in the test station The call emulation test can be performed between this phone set and the user configured on the MA5612 In this manner you can remotely check whether the voice serv...

Page 266: ...the status of the PPPoE dialup emulation Step 3 Run the pppoe simulate stop command to stop the PPPoE dialup emulation test End Result The result of the PPPoE dialup emulation test is as follows Run the display pppoe simulate info command to query the status of the PPPoE dialup emulation huawei config display pppoe simulate info PPPoE simulate information is Service port 0 User name user 0 Current...

Page 267: ...Step 2 Run the display igmp user command to query the status of the multicast user l If the multicast is in offline state it indicates that the multicast user fails to request for programs l If the multicast is in online state it indicates that the multicast user requests for programs successfully Step 3 Run the display multicast flow statistic command to query the real time traffic of the program...

Page 268: ... 228 0 0 8 watching 2011 03 15 16 02 38 08 00 PROGRAM 8 8 228 0 0 9 watching 2011 03 15 16 02 38 08 00 PROGRAM 9 8 228 0 0 10 watching 2011 03 15 16 02 38 08 00 Total 10 After the query it is found that multicast user 1 is online That is emulating a multicast user to request for programs is successful Run the display multicast flow statistic command to query the real time traffic of multicast prog...

Page 269: ... emulation are released and the emulation status cannot be queried The default emulation timeout period is 210s Step 3 Run the simulate dhcp stop command to stop the DHCP dialup emulation test End Result The result of the DHCP dialup emulation test is as follows Run the display simulation dhcp command to query the status of the DHCP dialup emulation huawei config display simulation dhcp cr service...

Page 270: ...race information are captured DSP is the acronym for digital signal processing l In extended packet capturing signaling and Dbwin packets are captured besides media streams upper layer protocol packets and DSP related trace information Prerequisite l The system CPU usage is less than or equal to 80 If you enable the remote packet capture function when the system CPU usage is greater than 80 the sy...

Page 271: ...kets to the destination port preventing service interruption on the source port This topic describes how to capture packets by using port mirroring on an Ethernet port Context Figure 8 6 shows the cable connection in port mirroring and packet capturing Figure 8 6 Cable connection in port mirroring and packet capturing Packet capture tool Uplink port Source port Destination port Description In the ...

Page 272: ...lete run the link aggregation command to restore port aggregation NOTE Port aggregation implements port protection and load sharing among the ports in an aggregation group After port aggregation is canceled load sharing cannot be implemented As a result packets may be lost when the traffic is heavy Therefore exercise caution when canceling port aggregation Port mirroring cannot be performed if por...

Page 273: ... and maintaining the device 9 1 How Is the Broadband Service Board Powered Off Automatically When the Battery Supplies Power SmartAX MA5612 Multi service Access Module Maintenance Guide 9 FAQ Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 264 ...

Page 274: ... board automatically when the battery supplies power to the MA5612 after the AC power supply is interrupted When the external battery supplies power to the MA5612 after the AC power supply is interrupted the MA5612 powers off the broadband service board In this case the voice service board can work in the normal state and the battery can supply power to the MA5612 for a longer time SmartAX MA5612 ...

Page 275: ... and Connectors This topic describes how to make the power cable ground cable and network cable A 3 Cable Labels This topic describes how to make fill in and attach the cable label A 4 Fault Tag This is the fault tag provided for the repair or the part replacement SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyrig...

Page 276: ... is registered with the upper layer device successfully This status is available only when data is transmitted upstream through a PON port Green blinking l The device is registering with the upper layer device when data is transmitted upstream through a PON port l The port is transmitting or receiving data when data is transmitted upstream through a GE port Green off The uplink port does not recei...

Page 277: ...or receiving data A 2 Making Cables and Connectors This topic describes how to make the power cable ground cable and network cable A 2 1 Making Console Ethernet Integrated Cables When a device is running the serial port on the device can be used as a maintenance serial port and a network port at the same time Therefore a console Ethernet integrated cable is needed to support the concurrent use of ...

Page 278: ...lic clump l Power cables l Insulating tape l Paper cutter l Diagonal pliers l Wire clipper l Cord end terminals Procedure Step 1 Use the paper cutter to peel off a section of the insulation layer from the power cable based on the cross sectional areas of the power cable conductors A section of the power cable conductor with a length of L1 is exposed as shown in Figure A 3 Table A 2 lists the recom...

Page 279: ...he cross sectional area and the length of insulation layer to be peeled off L1 Cross sectional Area mm2 L1 mm 1 8 1 5 10 2 5 10 4 12 6 14 10 15 16 15 25 18 35 19 50 26 Step 2 Insert the conductor of the peeled power cable into the cord end terminal as shown in Figure A 4 SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential ...

Page 280: ...shown in Figure A 5 Figure A 5 Clamping the cord end terminal 2 0 mm2 4 0 mm2 1 0 mm2 2 5 mm2 6 0 mm2 Rough side End A 2 3 Making External Power Cables and Ground Cables with OT Terminals This topic describes how to make external power cables and ground cables with OT terminals Recommended Tools and Materials The recommended tools and materials for making external power cables and ground cables wi...

Page 281: ... L1 is exposed as shown in Figure A 6 Table A 3 lists the recommended lengths of the insulation layer to be peeled off L1 Figure A 6 Peeling off the insulation layer of the power cable D C B L L1 CAUTION l When peeling off the insulation layer of the power cable ensure that the conductor of the power cable is not scratched l If the bare crimping terminals are not provided by Huawei you can adjust ...

Page 282: ...site you can compare the cable with the connector to be crimped Step 3 Insert the bare conductor of the power cable into the OT terminal B and then press the OT terminal close to the insulation layer C as shown in Figure A 7 Figure A 7 Installing heat shrink tubing and bare crimping terminal C B A L2 SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei...

Page 283: ...own in Figure A 8 Figure A 8 Clamping the tail of the bare crimping terminal with the contact part of the conductor B NOTE The crimped shapes vary with the crimping molds Step 5 Push the heat shrink tubing A towards the connector and cover the crimping area of the bare crimping terminal and the conductor Use a hot air gun to heat the heat shrink tubing as shown in Figure A 9 CAUTION Do not heat th...

Page 284: ...nary network cable Figure A 10 Ordinary network cable RJ 45 connector Boot UTP 5 twisted pair Checking Tools and Materials Check the following items l Ensure that the necessary tools such as the diagonal pliers a blade or knife and the crimp pliers are available l Ensure that the materials such as the RJ45 connectors UTP 5 twisted pair and the jacket are available SmartAX MA5612 Multi service Acce...

Page 285: ...e or a knife to peel off 20 mm of the jacket as shown in Figure A 12 Do not damage the insulation of the wires Figure A 12 Peeling the jacket Twisted pair 20 mm Step 4 Arrange the four pair of wires properly according to the connection sequence of the network cable Step 5 Ensure that the wires are 13 mm to 15 mm long Cut off the extra length of the wires arrange the wires in the correct order and ...

Page 286: ...en Orange 7 White and brown White and brown White and brown White and brown 8 Brown Brown Brown Brown NOTE In Table A 4 end A and end B refer to both ends of a network cable Step 6 Use the crimp pliers to crimp the connector Ensure that the connector is put correctly in the crimp pliers After crimping the metal cover on the connector must be lower than other area on the connector Step 7 Use a netw...

Page 287: ...als Check the following items l Ensure that all necessary tools such as the diagonal pliers crimp pliers blades or knives are available l Ensure that the necessary materials such as the shielded RJ45 connectors and the super UTP 5 cables are available Figure A 16 shows the shielded RJ45 connector which has a shielded iron cover and a wire fastening slot l Ensure that the jacket is in proper condit...

Page 288: ...cable do not damage the cable weaving layer or the insulation wires 1 Use the diagonal pliers to cut 20 mm off the cable weaving layer ground wire aluminum foil and polyester band at the head of the cable and store the wires 2 Arrange the four twisted pairs properly and insert them into the wire fastening slot Maintain the original space for the twisted pairs 3 Arrange the wires smoothly and strai...

Page 289: ... placed correctly After crimping the metal part on the connector must be lower than the height of the plastic cover 3 Use the network cable tester or a multimeter to check and ensure that the wires are connected properly 4 Insert the RJ45 connector into the jacket as shown in Figure A 19 Figure A 19 Crimping the RJ45 connector SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix...

Page 290: ...l pliers l Wire clipper l Electric soldering iron l Tin wire l Hot air gun l Paper cutter l marker Component Figure A 20 shows the components of the straight SMB female connector and the coaxial cable Figure A 20 Components A B D E C F A Press fitting sleeve B Plug of the connector C Coaxial jacket D Outer conductor of the coaxial cable E Insulation layer of the coaxial cable F Inner conductor of ...

Page 291: ...or or the shielded layer of the coaxial cable l You can determine the length of the part to be peeled according to the length of the connector as shown in Figure A 22 Table A 5 Peeled lengths of commonly used coaxial cables Cable Type External Diameter L1 mm L2 mm L3 mm Remarks SYFVZ 75 1 1 A 2 2 mm 5 6 7 9 10 12 SYV 75 2 2 3 9 mm 5 6 7 9 10 12 Dedicated to national backbone 155M I SYV 75 4 2 6 7 ...

Page 292: ...nto press fitting sleeve A as shown in Figure A 23 Figure A 23 Putting a coaxial cable into a sleeve C A Step 3 Expand outer conductor D of the coaxial cable into a bell mouthed shape as shown in Figure A 24 Figure A 24 Expanding the outer conductor of a coaxial cable D SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential C...

Page 293: ...ng make sure that there is no metal wire especially of the outer conductor or redundant soldering tin between the inner conductor and the outer conductor Use the multimeter to test the insulation state between the inner conductor and the outer conductor Then press fit the outer conductor Step 6 Push press fitting sleeve A towards the connector Compact the outer conductor of the coaxial cable Press...

Page 294: ...Connector This topic describes how to make the E1 cable with the straight SMB male connector Recommended Tools The recommended tools for making the E1 cable with the straight SMB male connector are as follows l Wire stripper l Wire crimping tool l Diagonal pliers l Wire clipper l Electric soldering iron SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Hua...

Page 295: ... its outer conductor D insulation layer E and inner conductor F according to the lengths shown in Figure A 30 The lengths of the reserved outer conductor the reserved insulation layer and the exposed jacket are L1 L2 and L3 respectively as listed in Table A 6 CAUTION l When peeling the coaxial cable do not damage the outer conductor or the shielded layer of the coaxial cable l You can determine th...

Page 296: ... Dedicated to national backbone 155M III SFYV 75 2 1 3 2 mm 5 6 7 9 10 12 Dedicated to national backbone II SFYV 75 2 2 4 4 mm 5 6 7 9 10 12 Dedicated to national backbone 155M II Figure A 31 Lengths of connectors and the peeled part of cables L3 L2 L1 L3 L2 L1 Step 2 Put a coaxial cable into press fitting sleeve A as shown in Figure A 32 SmartAX MA5612 Multi service Access Module Maintenance Guid...

Page 297: ...he inner conductor and insulation part of the coaxial cable into plug B of the connector Wrap outer conductor D of the connector by using the outer conductor of the coaxial cable as shown in Figure A 34 Figure A 34 Inserting a coaxial cable into a connector plug B D SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyr...

Page 298: ...r and the outer conductor Then press fit the outer conductor Step 6 Push press fitting sleeve A towards the connector Compact the outer conductor of the coaxial cable Press fit sleeve A and the plug of the coaxial connector by using press fitting tools as shown in Figure A 36 Figure A 36 Press fitting the outer conductor A End Follow up Procedure After assembling the cable components install the c...

Page 299: ...ith the bent SMB female connector are as follows l Wire stripper l Wire crimping tool l Diagonal pliers l Wire clipper l Electric soldering iron l Tin wire l Hot air gun l Paper cutter l marker Component Figure A 38 shows the components of the bent SMB female connector and the coaxial cable SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprieta...

Page 300: ...he coaxial cable to expose its outer conductor E insulation layer F and inner conductor G according to the lengths shown in Figure A 39 The lengths of the reserved outer conductor the reserved insulation layer and the exposed jacket are L1 L2 and L3 respectively as listed in Table A 7 Figure A 39 Structure of the coaxial cable E F D G L1 L2 L3 SmartAX MA5612 Multi service Access Module Maintenance...

Page 301: ... 3 9 mm 5 6 7 9 10 12 Dedicated to national backbone 155M I SYV 75 4 2 6 7 mm 5 6 7 9 10 12 Dedicated to national backbone 155M III SFYV 75 2 1 3 2 mm 5 6 7 9 10 12 Dedicated to national backbone II SFYV 75 2 2 4 4 mm 5 6 7 9 10 12 Dedicated to national backbone 155M II Figure A 40 Lengths of connectors and the peeled part of cables L3 L2 L1 L3 L2 L1 Step 2 Put a coaxial cable into press fitting s...

Page 302: ...he coaxial cable as shown in Figure A 42 Figure A 42 Inserting a coaxial cable into a connector plug E C Step 4 Solder inner conductor G of the coaxial cable with the inner conductor of plug C as shown in Figure A 43 Figure A 43 Soldering the inner conductor G Welding SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential Cop...

Page 303: ...axial cable Press fit sleeve A and the plug of the coaxial connector by using press fitting tools as shown in Figure A 44 Figure A 44 Press fitting the outer conductor A Step 6 Press fit upper cover B on plug C of the connector as shown in Figure A 45 Figure A 45 Press fitting the upper cover on the connector B A C End Follow up Procedure After assembling the cable components install the component...

Page 304: ...pic provides the materials types and structure of the labels It also describes the requirements for label printing and handwriting attaching methods label contents and precautions Material Specification The material features of the labels are as follows l Thickness 0 09 mm l Color Chalk white l Material Polyester PET l Applicable temperature 29 C to 149 C l Compatible with laser printing or can be...

Page 305: ...ize of the dividing line is 1 5 mm x 0 6 mm and its color is PANTONE 656c light blue The dotted lines mark the position for folding the label when you attach it to the cable There is a mark TO upside down in the figure at the lower right corner of the label The mark identifies the peer end of the cable to which the label is attached Label for the Power Cable The label for the power cable is attach...

Page 306: ...ng Service Engineering Quality Quality Standard and Template l Obtain the template from the Huawei local representative When using the Microsoft Word template pay attention to the following requirements l You can modify the contents on the template according to the positions of the cables installed on site However the settings of center direction and fonts of the characters on the label cannot be ...

Page 307: ...operties This page setup is required only when you use the template for the first time Requirements for Feeding Labels in the Printer The label paper is composed of two pages and is different from the ordinary paper Always feed in the labels manually one by one regardless of the model of the printer that you use Do not use the auto feed mode to prevent the printer from getting jammed Different mod...

Page 308: ...ard typeface Table A 8 Standard typeface for handwriting 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z The typeface for handwriting should be of proper size When you fill in the label in Chinese font the size of the Chinese font must be proper and the Chinese font must be legible and neat Figure A 50 shows the writing direction Figure A 50 Writing direction on the label 1...

Page 309: ... side of the identification plates The information the part after the mark TO on the label indicates the location of the peer end device control cabinet cable distribution box or socket of the cable end to which the label is attached Precautions for Using Labels Pay attention to the following items when using the labels l When you print write or attach labels ensure that the labels are clean l Do ...

Page 310: ...attach the label at a different position on the cable The labels should be attached to both ends of a cable When the cable is placed vertically the label should point towards the right When the cable is placed horizontally the label should point downwards Figure A 52 shows how to attach the label to the signal cable at a proper position Figure A 52 Attaching the label to the signal cable at a prop...

Page 311: ... room The cable tie should be fastened 2 cm away from the connectors In special cases the labels can be attached at other positions Cable ties should be fastened at both ends of a cable After bundling the cables the completed identification plate should be visible on the top of the cable in the horizontal cabling or on the right side of the cable in the vertical cabling Make sure that the label po...

Page 312: ...Cabinet number l M Cabinet row numbered A to Z from front to back l N Cabinet column numbered 01 to 99 from left to right For example A01 Cabinet in row A and column 01 NOTE Generally the preceding numbering method helps identify the position of a specific cabinet If two cabinets are installed back to back the front direction of the cabinet must be specified Hence the numbering method MNO is used ...

Page 313: ...tes the first cabinet in row A B Subrack number The subracks are numbered from bottom to top 01 indicates the lowest subrack C Slot number The slots are numbered from top to bottom and from left to right 01 indicates slot 1 of the subrack D Network port number The ports are numbered from top to bottom and from left to right 01 indicates the first network port MN Z MN Cabinet number B02 indicates t...

Page 314: ... network cable Figure A 56 Example of the label for the network cable TO A01 03 10 05 B02 03 12 l A01 03 10 05 indicates that one end of the network cable is connected to Ethernet port 05 slot 10 subrack 03 of the cabinet in row A column 01 l B02 03 12 indicates that the other end of the network cable is connected to Ethernet port 12 subrack 03 of the cabinet in row B column 02 The slot number is ...

Page 315: ... C Slot number D Optical port number R Optical receiving interface T Optical transmitting interface Example of the Label on the Optical Fiber Connecting Two Cabinets Figure A 57 shows the label on the optical fiber connecting two cabinets Figure A 57 Example of the label on the optical fiber connecting two cabinets TO 01 05 05 R G01 01 01 01 T A01 l A01 01 05 05 R indicates that one end of the opt...

Page 316: ...ndicates the fifth optical port R Optical receiving interface T Optical transmitting interface ODF MN B C R T MN ODF row and ODF column M numbered A to Z from front to back in each row N numbered 01 to 99 from left to right G01 ODF in row G and column 01 B Row number of the terminal Range 01 99 such as 01 C Column number of the terminal Range 01 99 such as 01 R Optical receiving interface T Optica...

Page 317: ...ing Example MN B C D MN Cabinet number A01 indicates the first cabinet in row A B Subrack number The subracks are numbered from bottom to top 03 indicates the third subrack C Slot number The slots are numbered from left to right and from top to bottom 01 indicates slot 1 of the subrack D Cable number The cables are numbered from left to right and from top to bottom 01 indicates slot 1 of the subra...

Page 318: ... power distribution device such as the control cabinet and power distribution box l BC identifies the row and column numbers of the 48 V connector If the row number or the column number does not exist or the connector can be identified without the row or column number BC can be omitted The BGND and the PGND cables do not require the row or the column number MN BC 48 V2 MN BC BGND MN BC PGND The la...

Page 319: ...entification For example such as 08 also mentioned as 8 in the label A01 B08 48 V2 l The PGND and the BGND are two copper bars The terminals are directly connected to these copper bars Therefore the connection of any of the terminal does not affect the distribution of the power supply Only the row and column numbers of the power distribution cabinet are required For example if the label on the loa...

Page 320: ...are bundled onto the cable the identification plates with the labels must point upward as shown in Figure A 61 Figure A 61 Example of the labels on the AC power cable Label on the loaded cabinet side position of the cable on the power distribution cabinet side Label on the power distribution cabinet side position of the cable on the loaded cabinet side TO A01 AC TO B01 AC l On the loaded cabinet s...

Page 321: ...g 8 types l F001 wear out damaged In warranty Period Out of Warranty Period l F002 deployment damaged l F003 intransit damaged l F004 Version upgrade l F005 batch replace l F007 overdue spare parts inspecting l F008 Others l F011 running circumstance change SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyright Huaw...

Page 322: ...requirements please contact the technical support l Make sure that a fault tag is associated to one return category such as RMA Return or Analysis l Please notice the mark is the necessary content that you must fill in SmartAX MA5612 Multi service Access Module Maintenance Guide A Appendix Issue 01 2012 07 25 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 313 ...

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