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TC Communications TC8518 E1 User Manual Download Page 92

Chapter 6 Troubleshooting 

T1/E1 CSU loop up & loop down codes

6-10

  

TC8518 Rev 2.2       User Manual

Figure 6-13 T1/E1 Both Units Loop Back Signal Flow

TC8518 Unit A 
Loop Monitor

TC8518 Unit B 
Loop Monitor

Functionality

Enable Local

Enable Local

This setting allows the Telco to enable/disable Unit 
A's local loopback by sending loop codes from the 
CO side. Also, loop codes sent from the 
demarcation side will enable/disable the local 
loopback on unit B.

Summary of Contents for TC8518 E1

Page 1: ...TC8518 T1 E1 Voice Data 10 100 Base T Ethernet Fiber Optic Multiplexer User Manual MNL 85180 01 22...

Page 2: ...is reviewed regularly and any necessary corrections will be included in subsequent editions We appreciate any suggested improvements We reserve the right to make technical improvements without notice...

Page 3: ...symbols are used in Caution Warning and Danger notes Symbol Meaning Pinching or crushing hazard Electrical hazard Equipment alert be careful of damage from static electricity General alert used for a...

Page 4: ...4 TC8518 Rev 2 2 User Manual...

Page 5: ...ipment Location 2 1 2 4 Mechanical Installation 2 2 2 4 1 19 Inch Rack Mounting 2 2 2 4 2 Power Supplies 2 2 2 5 Unit Power 2 4 2 5 1 Powering on the TC8518 2 4 2 6 Cabling 2 4 2 7 Quick Start Guide 2...

Page 6: ...4 3 11 5 Ethernet Options Port Statistics Event Statistics 3 35 3 11 6 Ethernet Options Ethernet over Fiber 3 36 3 12 Logout 3 38 4 Command Line Interface 4 1 Introduction 4 1 4 2 Setup 4 1 4 3 Consol...

Page 7: ...SU loop up loop down codes 6 8 Appendix A Return Policy A 1 Return Policy A 1 A 1 1 Warranty A 1 A 1 2 Limitation of Liability A 2 Appendix B Safety B 1 Overview B 1 B 2 Certified Usage B 1 B 2 1 Qual...

Page 8: ...TABLE OF CONTENTS TOC 4 TC8518 Rev 2 2 User Manual...

Page 9: ...nd 3 port Ethernet switch over single mode 1300 1550nm or multimode fiber 1300nm The TC8518 has any one of these options 8 additional T1 4 additional E1 8 channel voice 4 channel 2 wire 4 wire analog...

Page 10: ...l LED indicator eases installation and facilitates troubleshooting These LEDs can indicate an Alarm condition T1 E1 Signal Loss active Sync status and more The 3 Port Ethernet switch supports half ful...

Page 11: ...tistics Monitoring T1 E1 Optics Ethernet Hi Temp 20 to 70 and Extreme Temp 40 to 80 Versions optional Supports the Following Line Codes T1 AMI B8ZS E1 AMI HDB3 T1 E1 Jitter Attenuator Loopback support...

Page 12: ...Y Alarm ALM ACO Button Console Port CON 3 Ethernet Ports and related status LEDs 2 Fiber Ports and related status LEDs 16 T1 E1 Ports and related status LEDs Ethernet Ports Ethernet Ports Status LEDs...

Page 13: ...Chapter 1 Introduction TC8518 Product Description TC8518 Rev 2 2 User Manual 1 5 TC8518 Front Panel...

Page 14: ...CH FXO 3 2 wire 4 wire analog up to 4 channels 4 Serial 4CH RS 232 or 8CH RS 232 with RTS CTS 5 Serial 4CH RS 422 485 or 8CH RS 422 485 6 Serial 4CH RS232 w RTS CTS 4CH RS422 485 7 Additional T1 4CH o...

Page 15: ...ack TC8518 with FXO Expansion Back TC8518 with RS 232 RS 422 RS 485 Back For Future Release TC8518 with 4 Channel 2 Wire or 4 Wire Analog Back Chapter 1 Introduction TC8518 Product Description TC8518...

Page 16: ...ltering devices High Temperature 20 C to 70 C Extreme Temperature 40 C to 80 C Optional 1 3 3 Power Each TC8518 is furnished with dual power inputs There are several power supply input options availab...

Page 17: ...cription TC8518 Rev 2 2 User Manual 1 9 1 3 4 2 Console Terminal Sessions A command line interface CLI is a method for interacting with the system It provides information to the user through the use o...

Page 18: ...haracteristics Multi Mode Wavelength nm Connector Distance km Loss Budget Uni direction 1310 SC Subscriber Connector 2 15 Single Mode Uni direction 1310 SC Subscriber Connector 30 20 1310 SC Subscribe...

Page 19: ...Ethernet ports 1 2 3 Protocol Web SNMP Telnet Console Console Connector RJ45 on front panel CON RS 232 port Electrical RS232 Interface Baud Rate 9600 Indicators Power A Power B Unit Alarm T1 E1 Channe...

Page 20: ...oopbacks T1 E1 Lines Local and Remote Loopbacks Compliance Items EMI EMC EN55022 ANSI 403 1999 ANSI T1 408 AT T TR 62411 ITU G 703 G 704 G 706 G 736 G 775 G 823 I 431 O 151 O 161 ETSI ETS 300 166 JTG...

Page 21: ...l Description 3 Alarm Fuse Normal Close left 4 Alarm Fuse Common middle 5 Alarm Fuse Normal Open right DC Power Connector Pin Number Signal Description 1 Left V DC Return 2 Right V DC 24 28 V Chapter...

Page 22: ...ts Stop Bits 1 bit 1 bit Parity None None RJ 11 600 Analog Port Pin Assignment 4 Wire 2 Wire RJ 11 Jack Pin Assignment 6 5 4 3 2 1 1 N A 1 N A 2 Input 2 N A 3 Output 3 Input Output 4 Output 4 Input Ou...

Page 23: ...D TXD Not Used RXD TXD 2 Wire RS 485 Pin Assignment RJ 11 Port On TC3847 1 Not Used Not Used TC8518 Chapter 1 Introduction TC8518 Product Description TC8518 Rev 2 2 User Manual 1 15 1 3 7 Default Soft...

Page 24: ...0 Seconds T1 E1 Configuration Option Default Channels Enable Disable Disable Line Code AMI B8ZS HDB3 Line Termination 100 Ohm Line Build Out 1 to 655 ft Local Loopback Enable Disable Disable Remote Lo...

Page 25: ...sable Disable T1 E1 AIS LOS BPV TOCD TCLE Disable Enable Disable Enable Disable Enable Disable Enable Disable Enable Enable Enable Enable Disable Disable 1 3 9 Optical Redundancy Figure 3 below illust...

Page 26: ...Chapter 1 Introduction TC8518 Product Description 1 18 TC8518 Rev 2 2 User Manual Figure 1 4 Redundant Optics Logic Diagram...

Page 27: ...Chapter 1 Introduction TC8518 Product Description TC8518 Rev 2 2 User Manual 1 19 1 3 10 Environmental EMI Compliance...

Page 28: ...Chapter 1 Introduction TC8518 Product Description 1 20 TC8518 Rev 2 2 User Manual 1 3 11 Physical Dimensions...

Page 29: ...at TC Communications Inc at 949 852 1973 2 3 Environmental Requirements The TC8518 should be located in an area that provides adequate light work space and ventilation You should choose the correct te...

Page 30: ...inch rack 2 4 2 Power Supplies The TC8518 offers several different power input options 12 VDC 24 VDC 48 VDC 110V 220V Each configuration allows for two power supplies to share the load The unit can s...

Page 31: ...e connector Please see Power Supplies on page 2 2 Off 2 4 2 1 Dry Contact Alarm Relay DCAR A terminal block on the TC8518 provides for the dry contact relay alarm This relay may be used in conjunction...

Page 32: ...is already connected to power or any other circuit Chapter 2 Installation Unit Power 2 4 TC8518 Rev 2 2 User Manual 2 5 Unit Power 2 5 1 Powering on the TC8518 After powering up the TC8518 there will...

Page 33: ...r Alarm Optic LEDs will light solid or flash for a few minutes T1 E1 channel LEDs will light in a rotating pattern and the alarm buzzer will sound Once the unit finishes booting up the buzzer will sto...

Page 34: ...local unit s TxA connects to the remote unit s RxA and the local unit s RxA connects to the remote unit s TxA The local TxB connects to the remote RxB and the local unit s RxB connects to the remote u...

Page 35: ...er address field Setup diagnostics and management are accessed via Web SNMP Serial Console and Telnet To connect your PC to the TC8518 and access these pages see below To connect a PC 1 Using a CAT 5e...

Page 36: ...resent indicates the channel is disabled Optical Error Status Displays if there is an alarm signal from the optical ports A green icon indicates there is no alarm present and a red icon indicates an e...

Page 37: ...mperature is displayed in both Celsius and Fahrenheit scales Unit Power Status Displays the most current statuses of the redundant power supplies Power A and Power B Plug in Status displays one of thr...

Page 38: ...eria Clear Alarm Clears all alarm signals on the TC8518 If an existing alarm is still present and the page is refreshed the alarm condition will reappear Alarm Cut Off ACO Clears all alarm signals on...

Page 39: ...e This page is accessible from the Unit Alarm page At the Alarm Trigger Criteria section click on Modify to reach this page Please refer to Figure 3 3 Web Application Home Unit Alarm for default setti...

Page 40: ...erature 90 C TCLE Transmit Current Limit Exceeded TCLE indicates that there is a short on the T1 E1 channel s transmit pair Common sources of this problem is damaged cables or a faulty receiver at the...

Page 41: ...he Basic Settings page allows the Network Administrator to label and describe the TC8518 in order to distinguish it fromother TC8518 units Name Location Contact Description 1 3 All of these fields can...

Page 42: ...nt through the Web IP Settings 3 8 TC8518 Rev 2 2 User Manual Figure 3 5 Web Application Basic Settings 3 5 IP Settings The IP Settings page displays the current IP and Network Settings and allows for...

Page 43: ...Chapter 3 Management through the Web IP Settings TC8518 Rev 2 2 User Manual 3 9 Figure 3 6 Web Application IP Settings...

Page 44: ...page gives the Network Administrator access to administrative functions About TC8518 Please refer to Figure 3 9 Web Application Advanced About TC8518 Configuration File Please refer to Figure 3 10 We...

Page 45: ...b Application Advanced Firmware Upgrade and Figure 3 17 Web Application Advanced Upgrade from a Network PC Figure 3 8 Web Application Advanced Page 3 6 1 Advanced About TC8518 The About TC8518 page di...

Page 46: ...12 TC8518 Rev 2 2 User Manual Figure 3 9 Web Application Advanced About TC8518 3 6 2 Advanced Configuration File The Configuration File page allows the Network Administrator to save current TC8518 se...

Page 47: ...2 User Manual 3 13 Figure 3 10 Web Application Advanced Configuration File Load Configuration File This page allows the user to choose the location of where the configuration file is Please refer to F...

Page 48: ...re 3 11 Web Application Advanced Load Configuration File Save Configuration File The Save Configuration File feature allows the current TC8518 settings to be saved into a file The file will be a conf...

Page 49: ...n be selected from the drop table To manually configure the time click on Clock Set at the bottom of the page Daylight Saving Time Enable Disable Configurable if the Automatic Time Update is disabled...

Page 50: ...Chapter 3 Management through the Web Advanced 3 16 TC8518 Rev 2 2 User Manual Figure 3 13 Web Application Advanced Date and Time...

Page 51: ...Chapter 3 Management through the Web Advanced TC8518 Rev 2 2 User Manual 3 17 3 6 3 Advanced Reboot The Reboot page allows the user to reboot the unit Figure 3 14 Web Application Advanced Reboot...

Page 52: ...Web Advanced 3 18 TC8518 Rev 2 2 User Manual 3 6 4 Advanced Restore Defaults The Restore Default page allows the user to reset all settings to his or her original default settings Figure 3 15 Web Appl...

Page 53: ...vanced Firmware Upgrade The Firmware Upgrade page allows the user to upgrade the firmware of the TC8518 Figure 3 16 Web Application Advanced Firmware Upgrade 3 6 6 Advanced Upgrade From a Computer on...

Page 54: ...current Read Only Community Name It can be user defined A SNMP management software with the Read Only Community Name is granted authorization to view TC8518 values Read Write Community Name Displays t...

Page 55: ...8 Web Application Simple Network Management Protocol SNMP Page 3 8 Login Settings The Login Settings page allows the user to define security access for the TC8518 Users Displays the list of users with...

Page 56: ...Chapter 3 Management through the Web Login Settings 3 22 TC8518 Rev 2 2 User Manual Groups A tool to assist users in organizing multiple TC8518 users Figure 3 19 Web Application Login Settings Page...

Page 57: ...The T1 E1 Settings page displays the T1 E1 channel alarm status and summary Please refer to Figure 3 21 Web Application T1 E1 Options Settings T1 E1 Alarm Status Displays if a T1 E1 channel alarm sig...

Page 58: ...h channel choose Copy Channel Settings From to be Ch 1 and click on Copy This feature allows for simple and quick changes to multiple channels Figure 3 21 Web Application T1 E1 Options Settings 3 9 3...

Page 59: ...d by clicking on the icon under Action Figure 3 22 Web Application T1 E1 Options Statistics 3 9 4 T1 E1 Options Statistics Error Seconds Total The T1 E1 Statistics Error Seconds Total displays the tim...

Page 60: ...Web Application T1 E1 Options Statistics Error Seconds Total 3 9 5 T1 E1 Options Statistics History The T1 E1 Statistics History page displays the errors that occurred within defined time intervals fo...

Page 61: ...tic options related to the T1 E1 channels Loop Code Monitor Selects which signal will be monitored for CSU Loop Up Down codes See section 6 8 Local Loopback When enabled the T1 E1 signal coming in to...

Page 62: ...the current status of optical alarms Since Last Cleared Displays if an optical alarm has been triggered since the last time the Clear Alarm button was clicked For example two TC8518s are connected pr...

Page 63: ...signal wavelength and mode Timing Mode Non Looped means the TC8518 optics will transmit the signal clocked according to the local machine Looped indicates the signal will be transmitted with the same...

Page 64: ...0 3 Optical Options Statistics The TC8518 s Optical Statistics displays a summary of error types on the optics Refresh Rate The interval at which the optical statistics are updated Range of 30 to 600...

Page 65: ...the Ethernet port Default setting is Enabled Speed Duplex Choose either 100Mbps Full 10Mbps Full 100Mbps Half 10Mbps Half Default setting is Auto Negotiate Flow Control Enable or disable Flow Control...

Page 66: ...ts Transmitting and Receiving are separated to allow for extreme flexibility The port rate limits can be set in increments of 32Kbps If the Network Administrator enters a value that is not a multiple...

Page 67: ...r can define the save rate in increments of minutes Note Setting the Save Rate to less than 5 minutes will damage the flash memory The Statistics Summary also separates the traffic into transmit Tx an...

Page 68: ...et Options Port Statistics Port History The TC8518 Port History offers a comprehensive list of the statistics of a specific port shown on the Ethernet Options Port Statistics page It is updated with a...

Page 69: ...ve list of the event statistics of a particular port since the unit was powered on It displays totals of Ethernet events that the TC8518 experiences At the bottom of the page there is a Clear Event bu...

Page 70: ...ble Remote Ethernet Loopback without interrupting the T1 E1 signals It is a feature to troubleshoot the TC8518 s Ethernet function without interrupting the operation of the T1 E1 channels The Framing...

Page 71: ...Chapter 3 Management through the Web Ethernet Options TC8518 Rev 2 2 User Manual 3 37 Figure 3 34 Web Application Ethernet Options Ethernet over Fiber Settings...

Page 72: ...ugh the Web Logout 3 38 TC8518 Rev 2 2 User Manual 3 12 Logout The Logout link on the left column will exit the user from the TC8518 Web Management It will return the user to the Login page Figure 3 3...

Page 73: ...key B A command line interpreter then receives analyzes and executes the requested command C After the command is executed the command usually returns output to you in the form of text lines on the C...

Page 74: ...the pull down menu and click on OK If you do not know your COM number you can find out by going to Control Panel System Under the Hardware tab click Device Manager and a new window will open Look for...

Page 75: ...strator Improper settings may result in disruption of the existing network Once you connect to the TC8518 you will be prompted to enter a username and password Both the username and password are admin...

Page 76: ...1 Terminal Settings Console Home 4 3 1 IP Settings The IP Settings allows the user to view get or to configure set IP settings Figure 4 2 Terminal Settings Console IP Settings 4 3 2 Login Settings Th...

Page 77: ...inal Settings Console Login Settings 4 3 3 Advanced Settings The Advanced Settings allows the user to enable Load Configuration Reboot and Restore to Default Figure 4 4 Terminal Settings Console Login...

Page 78: ...serail status_get Shows serial ports current status serial enable_set Enables Disables serial ports serial mode_set Sets mode to RS422 RS485 2wire RS485 4wire Only used in RS422 RS485 2wire RS485 4wi...

Page 79: ...gs Applies to Phone expansion card 1 FXO Expansion CLI Commands Functions fxo port_status Shows phone lines status and caller ID settings fxo caller_id_enable Enables Disables caller ID feature in FXO...

Page 80: ...d Line Interface Console Telnet Management 4 8 TC8518 Rev 2 2 User Manual Figure 4 9 Terminal Settings FXS Port Status fxs caller_id_enable Enables Disables caller ID feature in FXO to FXS mode CLI Co...

Page 81: ...ined by the user and the MIB file compiled by SNMP Manager software prior to the trap operation 5 2 SNMP Query Figure 5 1 SNMP Query Response shows an example of a SNMP management station This figure...

Page 82: ...8 Rev 2 2 User Manual Figure 5 2 Third Party SNMP Manager 5 4 SNMP Trap Management Figure 5 3 SNMP Trap Display shows two examples of Alarm Traps sent from the TC8518 to the SNMP Manager Software on t...

Page 83: ...a port is connected and link signal is present the signal will flash when activity is present The FULL COL LED will be lit depending on the incoming signal If the Ethernet signal is 10 100Mbps and ful...

Page 84: ...al Support Department at TC Communications Inc for assistance If the unit is opened without prior authorization from TC Communications it will result in the loss of warranty 6 3 Alarm Condition ALARM...

Page 85: ...Ideally the link should be calibrated for total loss after the installation has been completed This will accomplish two things 1 it will verify that the total loss of the link is within the loss budge...

Page 86: ...k Test Optical local loopback tests if the optical transceivers on the local TC8518 are operating properly 6 6 3 Ethernet Local Loopback Test Ethernet local loopback tests if the Ethernet capabilities...

Page 87: ...Chapter 6 Troubleshooting Loopback Tests TC8518 Rev 2 2 User Manual 6 5 Figure 6 7 Ethernet Remote Loopback Test...

Page 88: ...Chapter 6 Troubleshooting Loopback Tests 6 6 TC8518 Rev 2 2 User Manual Figure 6 8 Local Loopback Tests...

Page 89: ...Chapter 6 Troubleshooting Loopback Test Remote Ethernet TC8518 Rev 2 2 User Manual 6 7 6 7 Loopback Test Remote Ethernet Figure 6 9 Remote Loopback Ethernet Tests...

Page 90: ...nd t1e1 loop_code_monitor_set Alternatively one can go to the T1 E1 Diagnostic webpage and set it up there The options are Disabled Enable Local and Enable Remote By setting it to Enable Local the dev...

Page 91: ...ed Enable Remote This setting allows the Telco to send loop codes that will enable disable the remote loopback on Unit B for a specific T1 channel Figure 6 12 T1 E1 Local Loop Back Signal Flow TC8518...

Page 92: ...oop Back Signal Flow TC8518 Unit A Loop Monitor TC8518 Unit B Loop Monitor Functionality Enable Local Enable Local This setting allows the Telco to enable disable Unit A s local loopback by sending lo...

Page 93: ...shipment unless goods have been subject to misuse neglect altered or destroyed serial number labels accidents damages caused in whole or in part to accident lightning power surge floods fires earthqu...

Page 94: ...re returned for repair retest A 1 2 Limitation of Liability 1 In no event shall the total liability of T C COMMUNICATIONS INC to purchaser and or end user for all damages including but not limited to...

Page 95: ...2 1 Qualification Requirements for Personnel Qualified personnel as understood in this manual and the warning signs are persons who are familiar with the setup assembly startup and operation of this...

Page 96: ...on with a safety extra low voltage It may only be connected to the supply voltage connections and to the signal contact with SELV circuits with the voltage restrictions in accordance with IEC EN 60950...

Page 97: ...oor hardened and substation hardened TC s communications products are manufactured with special components connectors and circuitry This ensures reliable operation in the event of wide temperature swi...

Page 98: ...om for adequate ventilation and cable routing Reserve space at least 0 5 m at the front and rear of the unit for human access cables and air flow Important Avoid locating it next to any equipment that...

Page 99: ...l usually electrical with one or more conductors where all devices are able to receive all transmissions at the same time C Counter Rotating Ring Aka Self Healing Ring has two physical transmission li...

Page 100: ...he receiver FPGA Acronym for Field Programmable Gate Array Full Duplex A communication method where both ends can transmit and receive simultaneously H Half Duplex A communication method where one end...

Page 101: ...plexer Aka or Multiplexor or Mux A device using several communications channels at the same time transmits and receives messages and controls communications lines may be a microprocessor MSTP In MSTP...

Page 102: ...event of a failure This LED indicates the condition See SNMP Query on page 5 1 Q QoS Quality of service In the field of computer networking and other packet switched telecommunication networks the tra...

Page 103: ...e internet or local area networks to provide a bidirectional interactive communications facility Typically telnet provides access to a command line interface on a remote host via a virtual terminal co...

Page 104: ...VLAN A virtual LAN commonly known as a VLAN is a group of hosts with a common set of requirements that communicate as if they were attached to the same Broadcast domain regardless of their physical lo...

Page 105: ...le bridged networks to transparently share the same physical network link without leakage of information between networks 802 1p Is a 3 bit field within an Ethernet frame header when using tagged fram...

Page 106: ...Glossary 8 TC8518 Rev 2 2 User Manual...

Page 107: ...ation sequence power up 5 1 M mechanical installation 2 2 MIB 1 8 P physical dimensions 1 20 power 1 8 unit 2 4 power supplies 2 2 power up LED verification sequence 5 1 R rack mounting 2 2 RJ 45 Ethe...

Page 108: ...Index Index 2 TC8518 Rev 2 2 User Manual...

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