RFL IMUX 2000 User manual

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL Electronics, Inc.
INSTRUCTION MANUAL
IMUX 2000
Intelligent E1 Multiplexer
With Redundant Capability
NOTICE
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 i 973.334.3100
The information in this manual is proprietary and confidential to RFL Electronics Inc.
Any reproduction or distribution of this manual, in whole or part, is expressly
prohibited, unless written permission is given by RFL Electronics Inc.
This manual has been compiled and checked for accuracy. The information in this
manual does not constitute a warranty of performance. RFL Electronics Inc. reserves
the right to revise this manual and make changes to its contents from time to time. We
assume no liability for losses incurred as a result of out-of-date or incorrect information
contained in this manual.
Note: This product is covered by US Patent number 7,061,905
RFL Electronics Inc.
353 Powerville Road ●Boonton Twp., NJ 07005-9151 USA
Tel: [phone] ●Fax: [phone]
Email: [email protected] ●www.rflelect.com
Publication Number MC 2000CM4-E1
Printed in U.S.A.
Revised July 22, 2008

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
WARRANTY
The IMUX 2000 Intelligent E1 Multiplexer comes with a five-year warranty from date of shipment for replacement of any
part which fails during normal operation. RFL will repair or, at its option, replace components that prove to be defective at
no cost to the Customer. All equipment returned to RFL Electronics Inc. must have an RMA (Return Material
Authorization) number, obtained by calling the RFL Customer Service Department. A defective part should be returned to
the factory, shipping charges prepaid, for repair or replacement FOB Boonton, N.J.
RFL Electronics Inc. is not responsible for warranty of peripherals, such as printers and external computers. The warranty
for such devices is as stated by the original equipment manufacturer. If you have purchased peripheral equipment not
manufactured by RFL, follow the written instructions supplied with that equipment for warranty information and how to
obtain service.
WARRANTY STATEMENT
The IMUX 2000 Intelligent E1 Multiplexer is warranted against defects in material and workmanship for five years from
date of shipment. During the warranty period, RFL will repair or, at its option, replace components that prove to be
defective at no cost to the customer, except the one-way shipping cost of the failed assembly to the RFL Customer Service
facility in Boonton , New Jersey. RFL warrants product repair from five-years from the date of repair or the balance of the
original factory warranty, whichever is longer.
This warranty does not apply if the equipment has been damaged by accident, neglect, misuse, or causes other than
performed or authorized by RFL Electronics Inc.
This warranty specifically excludes damage incurred in shipment to or from RFL. In the event an item is received in
damaged condition, the carrier should be notified immediately. All claims for such damage should be filed with the carrier.
NOTE
If you do not intend to use the product immediately, it is recommended that it be opened immediately after receiving and
inspected for proper operation and signs of impact damage.
This warranty is in lieu of all other warranties, whether expressed, implied or statutory, including but not limited to implied
warranties of merchantability and fitness for a particular purpose. In no event shall RFL be liable, whether in contract, in
tort, or on any other basis, for any damages sustained by the customer or any other person arising from or related to loss of
use, failure or interruption in the operation of any products, or delay in maintenance or for incidental, consequential,
indirect or special damages or liabilities, or for loss of business or other financial loss arising out of or in connection with
the sale, lease, maintenance, use, performance, failure or interruption of the products.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 ii 973.334.3100

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
WARNINGS AND SAFETY SUMMARY
CAUTION
FOR YOUR SAFETY
THE INSTALLATION, OPERATION, AND
MAINTENANCE OF THIS EQUIPMENT
SHOULD ONLY BE PERFORMED
BY QUALIFIED PERSONS.
WARNING:
The equipment described in this manual
contains high voltage. Exercise due care
during operation and servicing. Read the
safety summary on the reverse of this page
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 iii 973.334.3100

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
SAFETY SUMMARY
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 iv 973.334.3100
The following safety precautions must be observed at all times during operation,
service, and repair of this equipment. Failure to comply with these precautions,
or with specific warnings elsewhere in this manual, violates safety standards of
design, manufacture, and intended use of this product. RFL Electronics Inc.
assumes no liability for failure to comply with these requirements.
DO NOT SUBSTITUTE PARTS
OR MODIFY EQUIPMENT
Because of the danger of introducing additional
hazards, do not install substitute parts or make
unauthorized modifications to the equipment. The
product may be returned to RFL for service and
repair, to ensure that all safety features are
maintained.
READ THE MANUAL !
Operators should read this manual before
attempting to use the equipment, to learn how to
use it properly and safely. Service personnel must
be properly trained and have the proper tools and
equipment before attempting to make adjustments
or repairs.
Service personnel must recognize that whenever
work is being done on the product, there is a
potential electrical shock hazard and appropriate
protection measures must be taken. Electrical
shock can result in serious injury, because it can
cause unconsciousness, cardiac arrest, and brain
damage.
Throughout this manual, warnings appear before
procedures that are potentially dangerous, and
cautions appear before procedures that may result
in equipment damage if not performed properly.
The instructions contained in these warnings and
cautions must be followed exactly.
GROUND THE CHASSIS
The chassis must be grounded to reduce shock
hazard and allow the equipment to perform
properly. Equipment supplied with three-wire ac
power cables must be plugged into an approved
three-contact electric outlet. All other equipment
is provided with a rear-panel ground terminal,
which must be connected to a proper electrical
ground by suitable cabling. Refer to the wiring
diagram for the chassis or cabinet for the location
of the ground terminal.
DO NOT OPERATE IN AN
EXPLOSIVE ATMOSPHERE
OR IN WET OR DAMP AREAS
Do not operate the product in the presence of
flammable gases or fumes, or in any area that is
wet or damp. Operating any electrical equipment
under these conditions can result in a definite
safety hazard.
KEEP AWAY FROM
LIVE CIRCUITS
Operating personnel should never remove
covers. Component replacement and internal
adjustments must be done by qualified service
personnel. Before attempting any work inside the
product, disconnect it from the power source and
discharge the circuit by temporarily grounding it.
This will remove any dangerous voltages that
may still be present after power is removed.

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
WARNING
YOUR IMUX 2000 TERMINAL MAY BE EQUIPPED WITH
FIBER OPTIC INPUT/OUTPUT MODULES THAT HAVE
FIBER OPTIC EMITTER HEADS. FIBER OPTIC EMITTER
HEADS USE A LASER LIGHT SOURCE THAT PRODUCE
INVISIBLE RADIATION. FIBER OPTIC COMMUNICATION
SYSTEMS ARE INHERENTLY SAFE IN NORMAL
OPERATION BECAUSE ALL RADIATION IS CONTAINED IN
THE SYSTEM. IT IS POSSIBLE DURING MAINTENANCE TO
EXPOSE THE RADIATION BY REMOVING OR BREAKING
THE FIBER. STARING DIRECTLY INTO THE LIGHT BEAM
MAY RESULT IN PERMANENT EYE DAMAGE AND/OR
BLINDNESS. NEVER LOOK DIRECTLY INTO THE LIGHT
BEAM AND BE CAREFUL NOT TO SHINE THE LIGHT
AGAINST ANY REFLECTIVE SURFACE.
THE LASER SOURCE IS A CLASS I LASER PRODUCT
WHICH COMPLIES WITH APPLICABLE FDA, OSHA AND
ANSI STANDARDS.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 v 973.334.3100

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 vi 973.334.3100
TABLE OF CONTENTS
TABLE OF CONTENTS..........................................................................................................................................vi
LIST OF ILLUSTRATIONS......................................................................................................................................ix
LIST OF TABLES...................................................................................................................................................xii
Section 1. PRODUCT INFORMATION..................................................................................................................1
Section 2. FUNCTIONAL DESCRIPTION OF THE IMUX 2000 INTELLIGENT E1 MULTIPLEXER....................1
2.1 INTRODUCTION...................................................................................................................................................... 1
2.2 MULTIPLEXER CONFIGURATIONS AND SYSTEMS........................................................................................ 1
2.3 MULTIPLEXER COMPONENTS............................................................................................................................ 6
2.4 MULTIPLEXER, FRONT-PANEL SWITCHES, INDICATORS, AND JACKS .................................................. 30
2.5 MULTIPLEXER, REAR PANEL CONNECTIONS............................................................................................... 42
2.6 MULTIPLEXER, SETUP JUMPERS AND DIP SWITCHES................................................................................ 46
2.7 MULTIPLEXER, INTERNAL CONNECTIONS ON THE MOTHERBOARD.................................................... 47
Section 3. CM4 COMMON MODULE REDUNDANT PROTECTION MODE........................................................1
3.1 REDUNDANT PROTECTION MODE...................................................................................................................... 1
Section 4. CHANNEL MODULES OVERVIEW......................................................................................................1
4.1 CHANNEL MODULE TYPES.................................................................................................................................. 1
4.2 CHANNEL MODULE CHARACTERISTICS ......................................................................................................... 1
4.3 PHYSICAL SLOTS AND TIME SLOTS.................................................................................................................. 2
4.4 CHANNEL MODULE CONFIGURATION GUIDELINES .................................................................................... 5
4.5 POWER AVAILABLE FOR CHANNEL MODULES............................................................................................. 6
4.6 DETERMINING CHANNEL MODULE POWER REQUIREMENTS.................................................................... 7
4.7 POWER SUPPLY REDUNDANCY......................................................................................................................... 7
Section 5. SETUP AND CONFIGURATION ...........................................................................................................1
5.1 INTRODUCTION...................................................................................................................................................... 1
5.2 CM4 MODES............................................................................................................................................................. 1
5.3 SETTING THE MASTER AND TIMED SCB CLOCKS......................................................................................... 6
5.4 SETTING JUMPERS ON THE CM4 COMMON MODULE................................................................................... 7
5.5 USING THE GROUP AND SET/NEXT SWITCHES.............................................................................................. 8
5.6 SETTING E1 TRANSMITTER TIMING (TIME Group)....................................................................................... 10
5.7 SETTING E1 FRAME FORMAT AND LINE CODE (TSEL Group).................................................................... 16
5.8 ACTIVATING AND DEACTIVATING E1 LOOPBACKS (LPBK Group).......................................................... 17
5.9 THE MEANING OF BLINKING INDICATORS (BLNK Group) ......................................................................... 19
5.10 PERFORMANCE DATA (RVU1 Group)............................................................................................................. 20
5.11 DIAGNOSTIC DATA (DIAG Group)................................................................................................................... 21
5.12 SETTING MULTIPLEXER NETWORK ADDRESS (ADDR Group)................................................................. 22
5.13 SETTING REMOTE PORT PARAMETERS (SIO Group).................................................................................. 24
5.14 SETTING THE FAST FUNCTION....................................................................................................................... 29
5.15 SETTING THE MAIN FUNCTION...................................................................................................................... 30
5.16 SETTING THE SWCH FUNCTION..................................................................................................................... 31
5.17 SETTING THE SQEL FUNCTION ...................................................................................................................... 32
5.18. SETTING THE SWAP FUNCTION .................................................................................................................... 35
5.19. SETTING THE INTERFACE FUNCTION (INTF Group).................................................................................. 36
5.20 USING THE ALARM CUT-OFF SWITCH.......................................................................................................... 40
5.21 DISPLAYING AND SETTING SUPPLEMENTARY FUNCTIONS .................................................................. 41

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 vii 973.334.3100
Section 6. NETWORK MANAGEMENT SOFTWARE ...........................................................................................1
6.1 GENERAL INFORMATION .................................................................................................................................... 1
6.2 SOFTWARE INSTALLATION ................................................................................................................................2
6.3 CONNECTING YOUR PC TO THE NETWORK.................................................................................................... 5
6.4 USING THE NETWORK MANAGEMENT SOFTWARE ICONS....................................................................... 10
6.5 EXAMPLE OF CONFIGURING A NETWORK.................................................................................................... 13
6.6 NETWORK MANAGEMENT SOFTWARE HELP............................................................................................... 44
6.7 MODULES SUPPORTED BY THE NETWORK MANAGEMENT SOFTWARE............................................... 46
6.8 PASSWORD PROTECTION .................................................................................................................................. 50
Section 7. REMOTE CONFIGURATION................................................................................................................1
7.1 INTRODUCTION...................................................................................................................................................... 1
7.2 HARDWARE AND PROTOCOL ISSUES............................................................................................................... 1
7.3 SCL COMMAND LINE FORMAT........................................................................................................................... 5
7.4 GENERAL FORMAT OF SCL RESPONSES........................................................................................................ 15
7.5 SHELF-LEVEL AND COMMON MODULE REMOTE ACCESS ....................................................................... 16
7.6 8-PORT DACS COMMANDS................................................................................................................................26
7.7 CHANNEL MODULE REMOTE ACCESS ........................................................................................................... 27
7.8 OPTICAL INTERFACE ADAPTER REMOTE ACCESS ..................................................................................... 29
Section 8. INSTALLATION AND CHECK-OUT......................................................................................................1
8.1 INTRODUCTION...................................................................................................................................................... 1
8.2 INSTALLATION....................................................................................................................................................... 1
8.3 SYSTEM CHECK-OUT PROCEDURES............................................................................................................... 12
8.4 ADDING CHANNEL MODULES TO EXISTING SYSTEMS ............................................................................. 22
Section 9. TROUBLESHOOTING..........................................................................................................................1
9.1 INTRODUCTION...................................................................................................................................................... 1
9.2 GENERAL TROUBLESHOOTING ......................................................................................................................... 1
9.3 CM4 COMMON MODULE DIAGNOSTICS......................................................................................................... 10
Section 10. POWER SUPPLY AND P/S ALARM I/O.............................................................................................1
10.1 INTRODUCTION.................................................................................................................................................... 1
10.2 POWER SUPPLY MODULE.................................................................................................................................. 1
10.3 ALARM I/O MODULE........................................................................................................................................... 9
10.4 POWER SUPPLY SCHEMATICS........................................................................................................................ 10
Section 11. OPTICAL INTERFACE ADAPTERS...................................................................................................1
11.1 INTRODUCTION.................................................................................................................................................... 1
11.2 OVERVIEW ............................................................................................................................................................ 4
11.3 MA-217A SUB-ASSEMBLY AND REDUNDANCY OPERATION.................................................................... 4
11.4 LIGHT INTERFACE BOARD (LIB)...................................................................................................................... 6
Section 12. REFERENCE DATA And GLOSSARY...............................................................................................1
12.1 E1 FRAMING, TIMESLOTS And MULTIFRAME............................................................................................... 1
12.2 GLOSSARY............................................................................................................................................................. 3
Section 13. INDEX .................................................................................................................................................1
Section 14. ASYNCHRONOUS DATA CHANNEL MODULES..............................................................................1
DA-91I
DA-121I
DA-191A
DA-191B
DA-291B

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IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 viii 973.334.3100
Section 15. SYNCHRONOUS DATA CHANNEL MODULES................................................................................1
DS-64NC
DS-562NC
DS-562I
DS-961DE
DS-OCUDP
Section 16. VOICE MODULES ..............................................................................................................................1
VF-5AE
VF
-5C
VF-6I
VF-8A
VF-10D
VF-15C
VF-16B
Section 17. PROTECTION AND CONTROL MODULES ......................................................................................1
DS-TT
Status Module
TMX/TMR
Section 18. VIDEO MODULES ..............................................................................................................................1
Variable Video Module
Section 19. SPECIAL INTERFACES .....................................................................................................................1
MA-490 Telnet I/O
NC
M
Section 20: APPLICATION NOTES (APPENDIX I) ................................................................................................1
Section 21: IMUX MODULE ADAPTERS (APPENDIX II).......................................................................................1
Section 22. ACCESSORY EQUIPMENT AND SYSTEM DRAWINGS...................................................................1

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 ix 973.334.3100
LIST OF ILLUSTRATIONS
Figure 2-1. Front panel of IMUX 2000 Interlligent E1 Multiplexer ....................................................................................... 1
Figure 2-2. Terminal multiplexer (sample configuration)....................................................................................................... 2
Figure 2-3. Drop/insert multiplexer (sample configuration) ................................................................................................... 4
Figure 2-4. Point-to-point system (example)........................................................................................................................... 5
Figure 2-5. Drop/insert system (example)............................................................................................................................... 5
Figure 2-6. Front view of main shelf....................................................................................................................................... 7
Figure 2-7. Front view of multiple repeater shelves................................................................................................................ 9
Figure 2-8. Functional diagram, CM4 Common Module, Communications Control............................................................ 11
Figure 2-9. The meaning of Bus A and Bus B channel module settings............................................................................... 13
Figure 2-10. MA-271, MA278, MA-270R and MA-275R Module Adapters, rear panel views.......................................... 19
Figure 2-11. MA-271 pinouts................................................................................................................................................ 20
Figure 2-12. MA-278 pinouts................................................................................................................................................ 21
Figure 2-13. MA-270R pinouts............................................................................................................................................. 22
Figure 2-14. MA-275R pinouts............................................................................................................................................. 23
Figure 2-15. Typical CM4 Optical Interface Adapter (OIA), rear panel view...................................................................... 25
Figure 2-16. Functional diagram, IMUX 2000 Power Supply and Power Supply Alarm I/O module.................................. 26
Figure 2-17. Typical Power Supply Alarm I/O module, rear panel view.............................................................................. 28
Figure 2-18. Side view of Main or Repeater shelf, showing insertion of modules and Module Adapters............................ 29
Figure 2-19. Multiplexer Front-panel switches, indicators, and jacks................................................................................... 30
Figure 2-20. Front view of main shelf with door closed, showing the system status indicators ........................................... 31
Figure 2-21. Overview of CM4 Groups and Functions......................................................................................................... 38
Figure 2-22. Rear panel connectors, Main Shelf equipped with MA-270R Module Adapters.............................................. 43
Figure 2-23. Rear panel connectors, Main Shelf equipped with Optical Interface Adapters. ............................................... 44
Figure 2-24. Internal connections on the IMUX 2000 motherboard (electrical E1 interface)............................................... 48
Figure 2-25. Internal connections on the IMUX 2000 motherboard (fiber optic interface) .................................................. 48
Figure 3-1. Top view of IMUX 2000 chassis showing locations of Standby and Main Common Modules............................ 1
Figure 3-2. Functional block diagram, CM4 Common Module, Redundant Swap Control..................................................... 3
Figure 3-3. CM4 Module Swapping flowchart, Automatic Swap............................................................................................ 5
Figure 3-4. CM4 Module Swapping flowchart, Forced Swap.................................................................................................. 5
Figure 3-5. CM4 activity indicators......................................................................................................................................... 8
Figure 3-6. Front panel mode slide switch............................................................................................................................... 9
Figure 4-1. Effect of direction settings on channel modules................................................................................................... 3
Figure 4-2. Channel direction setup for transmit-only, transmit/receive, and receive-only channel modules......................... 4
Figure 5-1. Location and use of setup jumpers on the MA-271 and MA-278 Module Adapters............................................ 2
Figure 5-2. Location and use of setup jumpers on the MA-270R Module Adapter. .............................................................. 3
Figure 5-3. Location and use of setup jumpers on MA-275R Module Adapter..................................................................... 4
Figure 5-4. Location of DIP switch SW1 on typical Optical Interface Adapter...................................................................... 5
Figure 5-5. Location of jumpers on the CM4 common module.............................................................................................. 7
Figure 5-6. CM4 switches and indicators used to display and set functions........................................................................... 8
Figure 5-7. Point-to-point system synchronized to the network which forces timing onto E1 signal................................... 11
Figure 5-8. Point-to-point system internally timed from one end (not synchronized to the network)................................... 11
Figure 5-9. Drop/insert system synchronized to the network................................................................................................ 12
Figure 5-10. Drop/insert system internally timed from one end (not synchronized to the network)..................................... 12
Figure 5-11. Point-to-point system externally timed from one end (not synchronized to the network)................................ 12
Figure 5-12. Multiple systems synchronized to a common timing source ............................................................................ 13
Figure 5-13. Multiple frame-synchronized systems.............................................................................................................. 15
Figure 5-14. Signal flow in Common Module for various loopbacks................................................................................... 18
Figure 5-15. Example of a network management terminal which is simultaneously connected to multiple IMUX............. 28
Figure 5-16. Location of the alarm cut-off (ACO) switch on the Power Supply module..................................................... 40
Figure 5-17. View of CM4 showing switches used in Reset-Chart procedure...................................................................... 44
Figure 5-18. Overview of CM4 Groups and Functions......................................................................................................... 45

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 x 973.334.3100
Figure 6-1. Typical desktop showing the RFL NMS version 10.3 icon.................................................................................. 3
Figure 6-2. PC directly connected to a node using an RS-232 cable....................................................................................... 5
Figure 6-3. PC connected to a node from a remote location................................................................................................... 6
Figure 6-4. Construction of a typical RS-232 cable between the PC and an MA-270, MA-275 or OIA................................ 6
Figure 6-5. PC at a remote location connected to 4 nodes, where each node is a different network....................................... 7
Figure 6-6. PC at a remote location connected to 4 nodes, where all nodes are in the same network..................................... 8
Figure 6-7. Typical networks and communications paths....................................................................................................... 9
Figure 6-8. Network Management Software Main Window................................................................................................. 10
Figure 6-9. Basic drawing of the network used in the example ............................................................................................ 14
Figure 6-10. IMUX 2000....................................................................................................................................................... 15
Figure 6-11. Network Management Software Main window................................................................................................ 17
Figure 6-12. Edit Network Information Window.................................................................................................................. 18
Figure 6-13. Read Network Setup Window .......................................................................................................................... 21
Figure 6-14. Auto-Configure Options Window .................................................................................................................... 22
Figure 6-15. Network View Window.................................................................................................................................... 23
Figure 6-16. Display/Change Node window for node 1........................................................................................................ 24
Figure 6-17. Redundant DACS Configuration And Status Window..................................................................................... 25
Figure 6-18. DACS-R DS0 Map 0........................................................................................................................................ 26
Figure 6-19. CM4 Configfuration And Status Window........................................................................................................ 27
Figure 6-20. Configuration And Status Window for the VF5C ............................................................................................ 28
Figure 6-21. View or Change a Card Window for the VF16B.............................................................................................. 29
Figure 6-22. Configuration And Status Window for the DS562I......................................................................................... 30
Figure 6-23. Configuration And Status Window for the NCM module................................................................................ 31
Figure 6-24. Network View window after connecting lines to nodes ................................................................................... 32
Figure 6-25. Typical Alarm Log report................................................................................................................................. 34
Figure 6-26. Page 1 of typical Complete Network Information Report................................................................................ 35
Figure 6-27 Typical Connection View Report ...................................................................................................................... 36
Figure 6-28. Page 1 of a typical DACS Map Report............................................................................................................. 37
Figure 6-29. Typical DACS Map Difference Report ............................................................................................................ 38
Figure 6-30 Typical Difference Report................................................................................................................................. 39
Figure 6-31. Typical Network View Report.......................................................................................................................... 40
Figure 6-32. Page 1 of a typical Event Log Report............................................................................................................... 41
Figure 7-1. Local connection................................................................................................................................................... 3
Figure 7-2. Remote connection over a dial-up circuit............................................................................................................. 3
Figure 7-3. Remote connection over a public switched network ............................................................................................ 4
Figure 8-1. Rear view of Main or Repeater Shelf showing Bus Repeater Module and Repeater signal and power
connectors......................................................................................................................................................................... 4
Figure 8-2. Terminal strip power connections for IMUX 2000 multiplexers with single power supply modules .................. 6
Figure 8-3. Teminal strip power connections for IMUX 2000 multiplexers with redundant power supply modules............. 7
Figure 8-4. Label on front door for recording input voltage configuration........................................................................... 10
Figure 8-5. Caution Label inside front door of IMUX 2000................................................................................................. 10
Figure 8-6. Typical three-terminal IMUX 2000 system........................................................................................................ 12
Figure 8-7. Adding a new channel module to an existing system......................................................................................... 22
Figure 9-1. Basic troubleshooting categories.......................................................................................................................... 1
Figure 9-2. Using IMUX 2000 E1 loopbacks.......................................................................................................................... 3
Figure 9-3. In-service monitoring of a E1 circuit.................................................................................................................... 5
Figure 9-4. Out-of-service testing of a E1 circuit.................................................................................................................... 7
Figure 9-5. Testing an individual channel on an in-service E1 system................................................................................... 8
Figure 9-6. Testing channel modules using a local E1 loopback ............................................................................................ 9