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
5-6 Diagnostic Tests
Table 5-4. Activating / Deactivating a Channel Loop
Step Action Key Display
1 Bring the cursor under the top row
(if not already there).
CURSOR
2 Scroll to display TEST OPTIONS i:j
in the top row.
SCROLL Second row displays the first type of channel loop
and its state: e.g., LOCAL LOOP: OFF
3 To change, bring the cursor under
the left-hand field in the second
row and scroll to display the
desired type of channel loop.
CURSOR,
SCROLL
The available selections are:
• LOCAL LOOP
• REMOTE LOOP – The remote loop is
connected on the local MX-2100 toward the
remote unit.
• TONE_INJECT – displayed only for voice
channels
• PRBS – displayed only for data channels. If
you intend to use this function to check for
transmission errors, you must also connect a
physical loopback, or activate an appropriate
loop (e.g., a local or remote main link loop, or
a remote channel loop
• BERT – displayed only for data channels,
provided the downloading function is enabled
4 To change the state of the selected
loop, bring the cursor under the
right-hand field in the second row
and scroll to display the desired
state: ON or OFF.
CURSOR,
SCROLL
5 Press ENTER. ENTER If this is the only active test on this MX-2100, the
state of the front panel TEST indicator changes
Activating / Deactivating PRBS Transmission on a Data Channel
After the pseudo-random sequence (PRBS) transmission test is activated on the
selected data channel, as explained in the previous section, the next time you
select TEST OPTIONS for this channel, the second display row shows the current
test results:
• PRBS [GOOD]: ON – PRBS transmission is being performed on this channel,
and no error has been detected on the data channel.
• PRBS [BAD]: ON – PRBS transmission is being performed on this channel and
at least one error has been detected. This indication is normal if no loopback is
connected.
Activating / Deactivating BERT Test on a Data Channel
Same as PRBS test, except that when the BERT test is initiated, a remote channel
loop command is automatically sent to the remote MX-2100. In this case, a BERT
[BAD]:ON display always means that errors have been detected.