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Chapter 5 Testing and Diagnostics

MT1000A

Installation and Operation Manual

5-6 Diagnostic

Tests

Fiber Optic Link Local Loopback in the MT1000A

The fiber optic local loopback returns the transmit signal of the active fiber optic
link interface to the input of the receive path. Simultaneously, the local
MT1000A sends an unframed all-ones signal to the fiber optic link.

Figure 5-2

shows the fiber optic link local loopback connection.
When this loopback is activated, the equipment connected to the local
MT1000A tributary must receive its own transmission.
This test checks the operation of the local MT1000A, and the connections to the
equipment attached to the tributary interfaces.

Figure 5-2 Fiber optic Link Local Loopback in the MT1000A

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Содержание MT1000A-13-R3

Страница 1: ...S Call 877 877 BBOX outside U S call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing address Black Box Corporation 1000 Park Drive Lawre...

Страница 2: ......

Страница 3: ...ort Connecting the Uplink To connect a fiber optic uplink 1 Clean the optical connectors using an approved solvent and dry thoroughly using optical tissue 2 Connect to the two optical connectors desig...

Страница 4: ...o 72 VDC This unit is equipped with a standard AC type 3 prong power input connector located on the unit rear panel This power input connector can be used for both AC and DC voltage inputs AC or DC po...

Страница 5: ...ction 2 1 2 2 Site Requirements Prerequisites 2 1 Power 2 1 Tributary Connections 2 1 Fiber Optic Link Connections 2 2 Front and Rear Panel Clearance 2 2 Unit Clearance 2 2 Ambient Requirements 2 2 2...

Страница 6: ...t 4 18 Setting the Management Access 4 18 Setting the User Name and Password 4 19 Configuring the Control Port 4 20 Resetting the Factory Defaults 4 21 Resetting the MT1000A 4 21 4 8 Configuring the P...

Страница 7: ...y for four T1 channels at distances of up to 120 km 74 5 miles Redundant power supply Optional second fiber optic link for automatic backup Operates with multimode or single mode fiber and single mode...

Страница 8: ...cal Description Physical Characteristics MT1000A is a compact unit intended for installation on desktops or shelves Unit height is only 1U 1 75 An optional rack mount adapter kit enables installation...

Страница 9: ...omplies with the requirements of ITU T Rec G 956 and uses a proprietary signaling format that ensures optimum performance To optimally meet a wide range of system requirements the fiber optic interfac...

Страница 10: ...urate even when using short fiber optic cables saturation is caused when the optical power applied to the receiver exceeds its maximum allowed input power and results in very high bit error rates Fibe...

Страница 11: ...al test sequence through the fiber optic link An automatic self test on power up further enhances maintenance For more information on activating loopbacks see Chapter 4 Alarms and Alarm Indications MT...

Страница 12: ...10 Mbps and can be set to full or half duplex The management interface supports the following management methods Supervision Terminal An ASCII terminal connected to the RS 232 port or a PC running a...

Страница 13: ...dance with ordered option SF1 SF2 options only available with SC SF3 option only available with SC APC T1 Tributary Interface Characteristics Applicable Standards ITU T Rec G 703 G 824 Nominal Line Da...

Страница 14: ...Shielded RJ 45 Cable Type UTP CAT5 ALARM Connector Connector 9 pin D type female connector Contact Functions Set of floating normally closed normally open contacts for major and minor alarm indication...

Страница 15: ...MT1000A Installation and Operation Manual Chapter 1 Introduction Technical Specifications 1 9 Environment Operating Temperature 0 to 50 C 32 to 122 F Relative Humidity Up to 90 non condensing...

Страница 16: ...Chapter 1 Introduction MT1000A Installation and Operation Manual 1 10 Technical Specifications...

Страница 17: ...ttings adjustment maintenance or repairs may be performed by either the operator or the user such activities may be performed only by a skilled technician who is aware of the hazards involved Always o...

Страница 18: ...erator access Allow at least 10 cm 4 inches clearance at the rear of the unit for interface cable connections When planning the routing of fiber optic cables avoid sharp bends Unit Clearance Allow 1U...

Страница 19: ...is product will increase eye hazard Laser power up to 1 mW at 850 nm and at 1310 nm could be collected by an optical instrument Use of controls or adjustment or performing procedures other than those...

Страница 20: ...le and when inevitable would be carried out only by a skilled technician who is aware of the hazard involved Capacitors inside the instrument may still be charged even after the instrument has been di...

Страница 21: ...ues Factory Setting SW3 Tributary Alarms Mask Along with the software controls the operation of the alarms and whether they are ignored or processed SW3 1 sets CH 1 SW3 2 sets CH 2 SW3 3 sets CH 3 SW3...

Страница 22: ...ppendix A TX RX TX RX Optional Backup Power Supply Fiber Optic Links T1 Tributary Channels Alarm Connector Power Connector Figure 2 2 Typical MT1000A Rear Panel Connecting the Tributary Channels Each...

Страница 23: ...d through one of the pins of the power connector both for the AC and DC versions This instrument may become dangerous if damage to the protective grounding conductor inside or outside the instrument o...

Страница 24: ...ed with a Wide Range AC DC power supply This unit is equipped with a standard AC type 3 prong power input connector located on the unit rear panel This power input connector can be used for both AC an...

Страница 25: ...nnector on the rear panel of the MT1000A 2 Connect the power cable to the electricity outlet The PWR A indicator lights in green To turn on an MT1000A unit with two power supply units 1 Connect each p...

Страница 26: ...1000A continues to operate normally using power supply A Off Power supply B is not assembled 3 ALARM CUT OFF ACO push button When this button is pressed the indication of current alarms is suppressed...

Страница 27: ...TH LINK indicator Connection to the optional management Ethernet interface ON Data is being transferred on the Ethernet link ON The Ethernet line is alive 20 CONTROL connector Connection to the option...

Страница 28: ...Chapter 3 Operation MT1000A Installation and Operation Manual 3 4 Turning MT1000A Off...

Страница 29: ...n connected via Telnet or Web the user is disconnected after 10 minutes of inactivity no keyboard input on the client computer MT1000A supports several management information bases MIBs Refer to Appen...

Страница 30: ...s displayed MT1000A USER NAME PASSWORD ESC clear exit 1 user s Figure 4 1 MT1000A Login Screen 6 Enter your user name The default user name is USER 7 Enter your password The default password for the d...

Страница 31: ...atus 1 Management Ethernet 2 Up Link Status 2 Local Device Loops 3 Remote Device Loops 1 Loops Setting 2 E2 LLB Timeout 1 Loops Setting 2 E2 LLB Timeout 1 File System 2 S W File Transfer 1 SW Files 2...

Страница 32: ...ctivated MT1000A Monitoring 1 Total Alarms 2 System Monitoring 3 Physical Port Monitoring Please select item 1 to 3 ESC prev menu main menu exit 1 user s Figure 4 4 Monitoring Menu 2 To monitor the sy...

Страница 33: ...he Local System To monitor the status of the local system From the System Monitoring menu choose Local System Status The Local System Status screen Figure 4 6 is displayed The fields in the Local Syst...

Страница 34: ...us of Power Supply 1 OK Fault Not mounted PS2 Type The type of power supply for Power Supply 2 AC AC power supply 24VDC DC power supply DC 48V DC power supply NONE No power supply is installed in this...

Страница 35: ...e Channel Not Exists Active Link LINK_A Force Link LINK_A Redundancy status Available Redundancy Mode AUTO SW Version 1 00 HW Version 0 00 PS1 Type AC PS1 Status OK PS2 Type AC PS2 Status Fault Alarm...

Страница 36: ...ports on the local device choose Local Physical Port Status To display the status of ports on the remote device choose Remote Physical Port Status The Local Physical Port Status menu Figure 4 9 or Rem...

Страница 37: ...enu Figure 4 9 choose Up Link Status The Up link Status screen Figure 4 11 is displayed MT1000A Up Link Status Link A type Fiber optic Link A status No alarm Uplink A mode Multi mode Transmitter type...

Страница 38: ...5 choose System Log File The System Log File screen Figure 4 13 is displayed MT1000A System Log File Source Alarm Status Time 1 Local Main Link Line AIS occurred Major 2 1 13 2 Local Device No connect...

Страница 39: ...aying System Alarms To display the system alarms From the System Monitoring menu Figure 4 5 choose Local System Alarms or Remote System Alarms The Local System Alarms screen Figure 4 14 or Remote Syst...

Страница 40: ...menu exit 1 user s Figure 4 15 Physical Port Alarms Menu 2 To display the up link alarms choose Up link alarms The Up Link Alarms screen Figure 4 16 is displayed MT1000A Up Link Alarms Source Name Num...

Страница 41: ...1000A The use of a terminal enables you to View the configuration of the E1 and E2 interfaces to identify whether the interfaces are in the normal mode or in the looped mode Set local loop connections...

Страница 42: ...t Device Please select item 1 to 6 ESC prev menu main menu exit 1 user s Figure 4 19 System Configuration Menu When the MT1000A is connected to a new look remote device the Redundancy option is shown...

Страница 43: ...he selected Main Link for example Link A fails MT1000A will automatically switch over to the backup Main Link for example Link B Manual When the selected Force Link fails the system switches to the ba...

Страница 44: ...ice Info The Device Info menu Figure 4 24 is displayed MT1000A Device Info System Description MT1000A Hw Version 0 0 SW Version 30 1 System Contact 2 System Name 3 System Location Please select item 1...

Страница 45: ...IP List 1 IP Address 172 17 161 93 2 IP Mask 255 255 255 0 Please select item 1 to 2 ESC prev menu main menu exit 1 user s Figure 4 26 Host IP List Menu 3 To set the IP address of the MT1000A unit cho...

Страница 46: ...O v 4 0 0 0 0 NO 5 0 0 0 0 NO 1 Change cell 0 0 0 0 ESC prev menu main menu exit 1 user s Figure 4 27 Manager List Screen 2 The list contains 10 entries Press D to move down the list press U to move u...

Страница 47: ...exit 1 user s Figure 4 29 Telnet Menu 3 Choose Enable to enable this access mode choose Disable to disable this access mode Choose Managers only to provide management access only to those users whose...

Страница 48: ...rol port 1 From the Control Port menu Figure 4 30 choose Baud Rate The Baud Rate menu Figure 4 32 is displayed MT1000A Baud Rate 9600bps 1 9600 bps 2 19200 bps 3 38400 bps 4 57600 bps 5 115200 bps Ple...

Страница 49: ...o 2 ESC prev menu main menu exit 1 user s Figure 4 33 Factory Default Menu 2 To reset all parameters to the factory default choose All 3 To reset all parameters except for the management information t...

Страница 50: ...or Remote Physical Ports Configuration screen is displayed The Remote Physical Ports Configuration screen is identical to the Local Physical Ports Configuration screen MT1000A Local Physical Ports Con...

Страница 51: ...ser s Figure 4 37 Channels Configuration Screen 2 Choose Channel Number and then enter the number of the channel you want to configure 3 If you would like to specify a name to help identify the channe...

Страница 52: ...e to easily identify Link B choose Link B name and then enter a name for the link 5 Choose Link B alarm mask to toggle the alarm for Link B on or off 4 9 Diagnostics Setting the E2 Local Loopback Time...

Страница 53: ...o set the E1 LLB local loopback timeout on the remote MT1000A 1 From the Diagnostics menu Figure 4 39 choose Remote Device Loops The Remote Device Loops menu is displayed This menu is the same as the...

Страница 54: ...reen Figure 4 41 is displayed 3 Highlight the Loop status field of the channel you want to change 4 Enter the loopback status you want to set No loop No loopback on the channel LLB Local loopback on t...

Страница 55: ...he screen displays the current hardware and software version numbers 4 11 Downloading Software Whenever a new software release is available you should download it onto the MT1000A The MT1000A stores u...

Страница 56: ...elect item 1 to 3 ESC prev menu main menu exit 1 user s Figure 4 44 Via TFTP Menu 4 Choose TFTP Server IP and enter the IP address of the server from which you want to download the new software file 5...

Страница 57: ...need to run an X Modem application on the remote computer to invoke the upload 4 12 Viewing file and file system information To view information about the file system 1 From the File Utilities menu Fi...

Страница 58: ...oftware backup partition 1 Code size 0 Date 0 0 0 Boot version 2 20 Boot mng version 4 00 ESC prev menu main menu exit 1 user s Figure 4 46 SW Files Screen To change the software boot partition 1 Open...

Страница 59: ...ble Cause Corrective Measures The MT1000A does not respond No power Check that both ends of the power cable are properly connected If power cable is properly connected but the power supply still does...

Страница 60: ...icators remains lit replace the MT1000A None of the units connected to a local MT1000A receive the remote equipment External problem Activate the local loopback on the MT1000A Check that all the SYNC...

Страница 61: ...le Unable to activate redundancy between the uplinks This alarm occurs only if the redundancy mode is set to AUTO or MANUAL Major Remote alarm DAIS Received a Demux AIS Major Remote connection FAIL A...

Страница 62: ...A B OOF Switched from uplink A to uplink B out of frames in uplink A Uplink switch A B USER Switched from uplink A to uplink B user request Uplink switch B A Switched from uplink B to uplink A reason...

Страница 63: ...rom a terminal Fiber optic link local which can be set from a terminal T1 Local Loopback in the MT1000A The T1 local loopback returns the T1 transmit signal to the output of the receive path Simultane...

Страница 64: ...ive path Simultaneously the local MT1000A sends an unframed all ones signal to the fiber optic link Figure 5 2 shows the fiber optic link local loopback connection When this loopback is activated the...

Страница 65: ...from the terminal Fiber optic link remote which can be set from the terminal T1 Remote Loopback in the MT1000A The T1 remote loopback returns the transmitted Demuxed T1 to the receiver Mux Simultaneou...

Страница 66: ...ived signal of the active fiber optic link interface to the input of the transmit path Simultaneously the remote MT1000A sends an unframed all ones signal to the input of the Demux Figure 5 4 shows th...

Страница 67: ...has one RJ 45 eight pin connector Connector wiring is listed in Table A 1 Table A 1 RJ 45 Tributary Connector Pin Functions Pin Designation Direction Function 1 RD T Input Receive Data tip 2 RD R Inpu...

Страница 68: ...e MT1000A ALARM connector is a 9 pin female connector which includes the contacts of the major and minor alarm relays Figure A 1 shows the pin functions The relay positions are shown in the non energi...

Страница 69: ...ansmit Data TD From MT1000A 4 Data Terminal Ready DTR From MT1000A 5 Signal Ground SIG Common signal reference and DC power supply ground 6 Data Set Ready DSR To MT1000A Not used 7 Request to Send RTS...

Страница 70: ...power connector used for the AC DC power supply is a standard square 3 prong female connector For information on the DC power connector refer to the two supplements at the end of this manual DC Power...

Страница 71: ...tree structure that acts as the repository for defined objects Each object has an object name a type syntax an access code read write read only not accessible and write only and a status mandatory op...

Страница 72: ...Appendix B MT1000A MIBs MT1000A Installation and Operation Manual B 2...

Страница 73: ...nections 2 6 AC DC power supply 2 8 alarm relays 2 7 DC power 2 8 fiber optic 2 2 fiber optic interface 2 7 ground 2 7 power supply 2 7 tributary 2 1 tributary channels 2 6 connector alarms A 2 contro...

Страница 74: ...ical Port Status menu 4 8 Local Physical Ports Configuration screen 4 22 Local Redundancy menu 4 14 Local System Alarms screen 4 11 local system status monitoring 4 5 values 4 6 local system statusLoc...

Страница 75: ...nel 2 6 clearance 2 2 redundancy configuring 4 13 fiber optic 1 4 power supply 1 6 Redundancy menu 4 14 Redundancy Mode menu 4 15 Remote Device Loops menu 4 25 4 26 remote loopback 5 4 5 7 fiber optic...

Страница 76: ...2 5 switching automatic 1 4 system alarms 4 11 5 3 log file 4 10 4 11 monitoring 4 4 System Configuration menu 4 14 system log file clearing 4 11 displaying 4 10 System Log File screen 4 10 System Mon...

Страница 77: ...er supply wires according to the dimensions shown 2 Place each wire lead into the appropriate TB plug terminal according to the voltage polarity mapping shown in Figure 4 If a terminal is not already...

Страница 78: ...the TB plug s three terminals Warning Reversing the wire voltage polarity can cause damage to the unit Always connect a ground earth wire to the TB plug s Chassis frame Ground terminal Connecting the...

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