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Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual
6-16 Testing the Unit FCD-E1LC Ver. 1.0
6.5 Testing the Unit
The diagnostic loopbacks and tests are used to identify rapidly and efficiently the
location of a problem that prevents normal service.
A diagnostic loopback is activated by entering the appropriate LOOP (or LP)
command, and is deactivated using the CLR LOOP (or CLR LP) command. This
section provides a general description of each loopback and test.
Before executing a test, pay attention to the following:
• If a loopback is already connected, the TST indicator lights.
• If you try to connect a loopback while another loopback of the same type is
already connected, FCD-E1LC displays an error message.
• Not all of the loopback combinations are allowed.
For the list of allowed loopback combinations, refer to
Allowed Loopback
Combinations
on page
6-24
.
• No loopbacks are available for the Ethernet interface. In addition, main link
loopbacks should not be activated on an FCD-E1LC with Ethernet interface
while the Ethernet interface is connected to the LAN. This would cause a
state of permanent collision on the LAN, which would prevent other users
from using the LAN as long as the loopback is connected.
Overview of Test and Loopbacks
The FCD-E1LC supports the following types of test and loopback functions:
• Main link:
Main link local analog loopback (LP LOC ANA ML)
Main link remote analog loopback (LP REM ANA ML)
Main link local digital loopback (LP LOC DIG ML)
Main link remote digital loopback (LP REM DIG ML)
Inband-activated loopback (LP INBAND ML) on the main link
BER testing (LP BERT ML)
• Sublink:
Sublink local analog loopback (LP LOC ANA SL)
Sublink remote analog loopback (LP REM ANA SL)
Sublink local digital loopback (LP LOC DIG SL)
Sublink remote digital loopback (LP REM DIG SL)
• Data channel:
Data channel local loopback (LP LOC CH)
Data channel remote loopback (LP REM CH).
- FCD-E1LC 1
- Limited Warranty 4
- Product Disposal 4
- General Safety Instructions 5
- Safety Symbols 5
- Handling Energized Products 6
- Caution 8
- Attention 8
- FCC-15 User Information 9
- Mise au rebut du produit 10
- Symboles de sécurité 10
- Français 11
- Declaration of Conformity 13
- Quick Start Guide 15
- 3. Cable Connections 16
- Configuration Procedure 17
- Contents 19
- Chapter 1 21
- Introduction 21
- Main Features 22
- 1.2 Typical Applications 23
- 1.3 Physical Description 24
- 1.4 Functional Description 25
- Internal Bus Functions 27
- Main Link Interface 28
- Sublink Interface 29
- Synchronous Data Channels 30
- Ethernet Interface 31
- Ethernet Switch Description 32
- Flow Control Options 32
- Forwarding Algorithms 33
- VLAN and QoS Support 33
- System Timing 34
- Main Link Timing 34
- Sublink Timing 34
- Diagnostics 35
- Timeslot Handling 36
- Management Subsystem 36
- Power Supply Subsystem 38
- 1.5 Timing Considerations 39
- System Management Method 40
- Management Access Options 41
- Serial Ports 42
- MBE/RAS/A 42
- Diagnostics 48
- Indicators 48
- Chapter 2 51
- Installation and Setup 51
- Physical Requirements 53
- Power Requirements 53
- Connections 53
- Serial Data Port Connections 54
- Ethernet Port Connections 54
- 2.3 Package Contents 55
- 2.4 Equipment Needed 56
- 2.5 FCD-E1LC Enclosures 56
- FCD-E1LC Rear Panels 57
- Opening the Unit 60
- Figure 2-4 61
- Figure 2-5 61
- 1. Refer to 62
- Table 2-4 63
- Closing the Unit 64
- 2.7 Connecting the Cables 65
- Connecting the Sublink 66
- Connecting the Data Channels 66
- Connecting Ethernet 66
- 2.8 Connecting to Power 67
- Chapter 3 69
- Operation 69
- 3.2 Indicators 70
- Preliminary Configuration 71
- System Configuration 71
- Routine Management 72
- Autobaud Function 74
- 3.4 Turning Off the Unit 75
- Configuration 77
- Starting a Control Session 78
- Configure the SNMP Agent 80
- Ending the Control Session 81
- Command Syntax 81
- What to Do If … 82
- Ending a Control Session 83
- Command Options 84
- Index of Commands 84
- Chapter 5 87
- Configuring FCD-E1LC for 87
- Chapter 3 88
- 5.2 Configuration Example 88
- Configure System Timing 92
- Chapter 6 93
- Troubleshooting and 93
- 6.2 Detecting Errors 96
- 6.3 Handling Alarms 96
- Alarm Display 97
- Alarm Messages 97
- FCD-E1LC Ver. 1.0 100
- 6.4 Troubleshooting 103
- Appendix B 104
- Allowed Loopback 105
- Combinations 105
- Troubleshooting Procedure 106
- 6.5 Testing the Unit 108
- Local FCD-E1LC 109
- Remote FCD-E1LC 110
- BER Testing (LP BERT ML) 112
- Sublink Loopbacks 113
- Data Channel Loopbacks 115
- 6.7 Technical Support 121
- Appendix A 123
- Connection Data 123
- Figure A-2 124
- A.2 Sublink Connection Data 125
- Pin 13 Pin 1 126
- DCE Mode 127
- DTE1 Mode 128
- DTE2 Mode 129
- X.21 Data Channel 133
- Figure A-9 138
- Connector Data 140
- Connector 141
- Table A-15 141
- A.7 Power Connection 142
- SNMP Management 143
- SNMP Operations 144
- MIB Structure 144
- SNMP Communities 145
- B.2 SNMP Traps 146
- Appendix C 149
- Operating Environment 149
- G732N Multiframe 150
- G732S Multiframe 150
- E1 Line Signal 151
- Timeslot 0 151
- E1 Line Alarm Conditions 152
- C.2 IP Environment 153
- (13 bits) 154
- IP Address Structure 155
- Host Portion 156
- Subnetting 157
- Subnet Masks 157
- IP Routing Principles 158
- Ethernet LAN Topologies 159
- Media Access Method 160
- Autonegotiation 161
- Figure A-4 162
- Bridging 163
- ARP Protocol 165
- Appendix D 167
- Supervision Terminal 167
- Commands 167
- D.2 Commands 168
- Purpose 169
- <Enter> to continue 170
- DEF ALM MASK 171
- Chapter 4 172
- DEF BERT ML 174
- DEF CALL 176
- Table D-3 177
- Use – Serial Data Channel 179
- Use – Ethernet Port 185
- DEF DNLOAD 186
- DEF MANAGER LIST 189
- DEF NAME 192
- DEF NODE 192
- DEF PROMPT 192
- DEF PWD 193
- DEF ROUTE 194
- Table D-8 195
- DEF SYS 202
- DEF TERM 203
- DSP AGENT 204
- DSP ALM 204
- DSP BERT ML 205
- DSP HDR TST 206
- DSP MANAGER LIST 207
- DSP PM ML 207
- DSP PM SL 210
- DSP REM AGENT 210
- DSP ST CH 211
- DSP ST ML 212
- DSP ST SL 214
- DSP ST SYS 214
- INIT DB 217
- Syntax & Use 220
- Customer Response Form 223
- Error Report 225
- International Headquarters 228
- North America Headquarters 228
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