Specifications
Table Of Contents
- Preface
- Quick Start Guide
- Table of Contents
- Chapter 1 General Information
- Functional Description
- Physical Description
- Application Considerations
- Basic MX-2100 System
- Redundancy (not for MX-2104)
- Dual Link Operation (not for MX-2104)
- Priority Bumping \(not for MX2104\)
- Switched Backup Operation (not for MX-2104)
- Switch Mode
- System Management
- System Timing Considerations
- DTE Timing (KML.1, KML.2, KML.3, KML.4 and KML.10 Modules)
- External DCE Timing (KML.1, KML.2, KML.3 and KML.4 Modules)
- DCE Timing (KML.1, KML.2, KML.3 and KML.4 Modules)
- Internal Timing (KML.5, KML.6, KML.7, KML.8, and KML.F Modules)
- Loopback Timing (KML.5, KML.6, KML.7, KML.8, and KML.F Modules)
- DCE Timing (KML.7, KML.8, and KML.F Modules)
- Main Link Timing Considerations in Bypassing and Multidrop Configurations
- Data Channel Clock Modes
- Timing Modes of ISDN Channels
- Sub Link Timing
- Main Link Interface Characteristics
- V.35 Interface (Module KML.1)
- RS-232 Interface (Module KML.2)
- V.36/RS-422/RS-530 Interface (Module KML.3)
- X.21 Interface (Module KML.4)
- G.703 Codirectional Interface (Module KML.5)
- Standard DDS CSU/DSU (Module KML.6)
- T1 Link Interface (Module KML.7)
- E1 Link Interface (Module KML.8)
- ISDN "S" Interface (Module KML.10/S)
- ISDN "U" Interface (Module KML.10/U)
- Fiber-Optic Link Interface (Module KML.F)
- I/O Module Applications
- Technical System Characteristics
- Chapter 2 Installation
- Introduction
- Site Requirements and Prerequisites
- Input Power Requirements
- Grounding
- Channel Connection Considerations
- Front and Rear Panel Clearance
- Ambient Requirements
- Electromagnetic Compatibility Considerations
- Current and Power Requirements of MX-2100 Power Supply Modules
- Current and Power Capabilities of MX-2100 Power Supply Modules
- Ratings of Ring and Feed Voltage Supplies
- Equipment Needed
- Package Contents
- Installation and Setup of MX-2100
- Interfaces and Connections
- Initial Setup and Configuration
- Chapter 3 Configuring MX-2100
- Chapter 4 Operation
- Chapter 5 Diagnostics
- Appendix A Connection Data
- Appendix B Alarms
- Appendix C SNMP Management
- Appendix D Software Download
- Appendix E Configuration Parameters
- Appendix F Command Set Description
- General
- Commands
- BYE
- CLR ALM
- CLR LOOP
- CLR MONITOR
- CONNECT SWITCH
- DATE
- DEF AGENDA
- DEF AGENT
- DEF ALM DEBOUNCE
- DEF CALL
- DEF CH
- DEF CON
- DEF DB FLIP
- DEF DP
- DEF FRAME
- DEF MANAGER LIST
- DEF ML
- DEF ML CALL
- DEF NAME
- DEF NODE
- DEF NP
- DEF PWD
- DEF ROUTE
- DEF SP
- DEF SYS
- DISCONNECT SWITCH
- DSP AGENT
- DSP ALM
- DSP BERT
- DSP CH CON
- DSP FLIP
- DSP HDR TST
- DSP MANAGER LIST
- DSP KVF5orDSP PBX
- DSP KVF6
- DSP SIGNALINGorDSP SIG
- DSP PRBS_INJ
- DSP REM AGENT
- DSP REV
- DSP ST FRAME
- DSP ST ML
- DSP ST SLOT
- DSP ST SYS
- EDIT DB
- EXIT
- F
- FLIP ML
- HELP
- INIT DB
- INIT F
- LOAD DB 1\2
- LOAD IO
- LOOP
- ML RECOVERY
- MONITOR
- REBUILD FRAME
- RESET LOC
- RESET IO
- RESET ML
- TIME
- UPDATE DB 1\2
- Index
- DC Power Supply Connection

Chapter 5 Diagnostics MX-2100/2104 Installation and Operation Manual
5-10 Diagnostic Tests
Local
MX-2100
Remote
MX-2100
Figure 5-2. Remote Main Link Loop, Signal Paths
Remote Main Link Loop – Normal Indications and Fault Isolation
• The TEST indicator of the local MX-2100 lights.
• The TXD and RXD indicators of the local and remote MX-2100 units must
light, and the LOCAL SYNC LOSS indicator of the remote MX-2100 unit must
be off.
If there is a problem, trace the fault by checking the indications in the order given
below:
1. If the TXD indicator of the remote MX-2100 unit does not light, the fault
occurred in the remote MX-2100 unit: check by performing a local main link
loop on the remote unit.
2. If the TXD indicator of the remote MX-2100 unit lights but the RXD indicator
of the local MX-2100 unit does not light, probably there is a problem in the
transmit path to the local unit. There is however a low probability that the fault
occurred in the local or remote MX-2100 units: check by performing local
main link loops.
3. If the RXD indicator of the local MX-2100 unit lights, but its TXD indicator is
off, the local MX-2100 unit is defective.
4. If the TXD indicator of the local MX-2100 unit lights but the remote RXD
indicator is off, probably there is a problem in the transmit path to the remote
unit. There is however a low probability that the fault occurred in the remote
MX-2100 unit: check by performing a local main link loop on the remote unit.
5. If the RXD indicator of the remote MX-2100 unit lights, but its LOCAL SYNC
LOSS indicator lights, a fault is present. The fault is in the remote MX-2100:
check by performing a local main link loop.