RFL Electronics 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.
INSTRUCTION MANUAL
IMUX 2000
Intelligent T1 Multiplexer
With Digital Access Cross-Connect
(M-DACS)
NOTICE
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 i [phone]
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out-of-date or incorrect information contained in this manual.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 MDACS-T1
Printed in U.S.A.
Revised January 1, 2013

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 T1 Multiplexer with Digital Access Cross Connect (M-DACS) 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 M-DACS T1 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-year 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.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 ii [phone]

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.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 iii [phone]
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

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
SAFETY SUMMARY
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.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 iv [phone]
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 M-DACS MULTIPLEXER 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.
SPECIAL NOTE
RFL products are not designed for safety critical direct control of nuclear reactors and should not be
used as such.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 v [phone]

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
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M-DACS-T1 RFL Electronics Inc.
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Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 vii [phone]
TABLE OF CONTENTS
WARNINGS AND SAFETY SUMMARY .................................................................................................................iii
SAFETY SUMMARY...............................................................................................................................................iv
TABLE OF CONTENTS.........................................................................................................................................vii
LIST OF ILLUSTRATIONS......................................................................................................................................ix
LIST OF TABLES....................................................................................................................................................xi
Section 1. PRODUCT INFORMATION................................................................................................................1-1
Section 2. FUNCTIONAL DESCRIPTION OF THE IMUX 2000 (M-DACS) ........................................................2-1
2.1 INTRODUCTION....................................................................................................................................................2-1
2.2 MULTIPLEXER CONFIGURATIONS AND SYSTEMS......................................................................................2-1
2.3 M-DACS MULTIPLEXER COMPONENTS........................................................................................................2-22
2.4 M-DACS CHASSIS, FRONT-PANEL SWITCHES, INDICATORS, AND JACKS...........................................2-48
2.5 MULTIPLEXER, REAR PANEL POWER AND RELAY CONNECTIONS......................................................2-61
2.6 MULTIPLEXER, SETUP JUMPERS AND DIP SWITCHES..............................................................................2-63
Section 3. SYSTEM OVERVIEW.........................................................................................................................3-1
3.1 M-DACS THEORY OF OPERATION....................................................................................................................3-1
3.2 CHANNEL MODULE TYPES..............................................................................................................................3-10
3.3 CHANNEL MODULE CHARACTERISTICS .....................................................................................................3-10
3.4 PHYSICAL SLOTS AND TIME SLOTS..............................................................................................................3-11
3.5 CHANNEL MODULE CONFIGURATION GUIDELINES ................................................................................3-13
3.6 POWER AVAILABLE FOR CHANNEL MODULES.........................................................................................3-14
3.7 DETERMINING CHANNEL MODULE POWER REQUIREMENTS................................................................3-14
3.8 POWER SUPPLY REDUNDANCY.....................................................................................................................3-14
Section 4. SETUP AND CONFIGURATION ........................................................................................................4-1
4.1 INTRODUCTION....................................................................................................................................................4-1
4.2 CM4 MODES...........................................................................................................................................................4-1
4.3 SETTING JUMPERS ON THE CM4 COMMON MODULE.................................................................................4-2
4.4 USING THE CM4, GROUP AND SET/NEXT SWITCHES..................................................................................4-3
4.5 SETTING CM4, T1 TRANSMITTER TIMING (TIME Group).............................................................................4-5
4.6 SETTING CM4, T1 FRAME FORMAT AND LINE CODE (TSEL Group)..........................................................4-6
4.7 ACTIVATING AND DEACTIVATING CM4, T1 LOOPBACKS (LPBK Group)................................................4-7
4.8 THE MEANING OF BLINKING INDICATORS (BLNK Group) .........................................................................4-9
4.9 CM4 PERFORMANCE DATA (RVU1 Group)....................................................................................................4-10
4.10 CM4 DIAGNOSTIC DATA (DIAG Group) .......................................................................................................4-11
4.11 SETTING M-DACS MULTIPLEXER NETWORK ADDRESS (ADDR Group)..............................................4-12
4.12 SETTING CM4, REMOTE PORT PARAMETERS (SIO Group)......................................................................4-14
4.13 SETTING THE SQEL FUNCTION ....................................................................................................................4-19
4.14 SETTING THE CM4 INTERFACE FUNCTION (INTF Group)........................................................................4-22
4.15 USING THE ALARM CUT-OFF SWITCH........................................................................................................4-26
4.16 DISPLAYING AND SETTING SUPPLEMENTARY FUNCTIONS ................................................................4-27
4.17 RESET-CHART PROCEDURE FOR CM4 MODULE......................................................................................4-29
Section 5. NETWORK MANAGEMENT SOFTWARE .........................................................................................5-1
5.1 GENERAL INFORMATION ..................................................................................................................................5-1
5.2 SOFTWARE INSTALLATION ..............................................................................................................................5-2
5.3 CONNECTING YOUR PC TO THE NETWORK..................................................................................................5-4
5.4 USING THE NETWORK MANAGEMENT SOFTWARE ICONS.....................................................................5-10
5.5 EXAMPLE OF CONFIGURING A NETWORK..................................................................................................5-13
5.6 NETWORK MANAGEMENT SOFTWARE HELP.............................................................................................5-62
5.7 MODULES SUPPORTED BY THE NETWORK MANAGEMENT SOFTWARE.............................................5-64
5.8 PASSWORD PROTECTION ................................................................................................................................5-68

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M-DACS-T1 RFL Electronics Inc.
January 1, 2013 viii [phone]
Section 6. REMOTE CONFIGURATION..............................................................................................................6-1
6.1 INTRODUCTION....................................................................................................................................................6-1
6.2 HARDWARE AND PROTOCOL ISSUES.............................................................................................................6-1
Section 7. INSTALLATION AND CHECK-OUT....................................................................................................7-1
7.1 INTRODUCTION....................................................................................................................................................7-1
7.2 INSTALLATION.....................................................................................................................................................7-1
7.3 SYSTEM CHECK-OUT PROCEDURES.............................................................................................................7-13
7.4 ADDING CHANNEL MODULES TO EXISTING SYSTEMS ...........................................................................7-21
Section 8. TROUBLESHOOTING........................................................................................................................8-1
8.1 INTRODUCTION....................................................................................................................................................8-1
8.2 GENERAL TROUBLESHOOTING .......................................................................................................................8-1
8.3 CM4 COMMON MODULE DIAGNOSTICS.......................................................................................................8-11
8.4 FUSE REPLACEMENT........................................................................................................................................8-17
8.5 HOW TO ARRANGE FOR SERVICING.............................................................................................................8-18
Section 9. POWER SUPPLY AND P/S ALARM I/O.............................................................................................9-1
9.1 INTRODUCTION....................................................................................................................................................9-1
9.2 POWER SUPPLY MODULE..................................................................................................................................9-1
9.3 ALARM I/O MODULE...........................................................................................................................................9-9
9.4 POWER SUPPLY SCHEMATICS........................................................................................................................9-10
Section 10. REFERENCE DATA .......................................................................................................................10-1
10.1 SF AND ESF FORMATS....................................................................................................................................10-1
10.2 GLOSSARY.........................................................................................................................................................10-2
10.3 INDEX.................................................................................................................................................................10-7
Section 11. ASYNCHRONOUS DATA CHANNEL MODULES..........................................................................11-1
DA-91I
DA-121I
DA-291B
Section 12. SYNCHRONOUS DATA CHANNEL MODULES............................................................................12-1
DS-562I
DS-562NC
DS-961D
OCUDP
Section 13. VOICE MODULES ..........................................................................................................................13-1
VF-5A
VF
-5C
VF-6I
VF-8A
VF-15C
VF-16B
Section 14. PROTECTION AND CONTROL MODULES ..................................................................................14-1
DS-TT
Status Module
TMX/TMR
Section 15. VIDEO MODULES ..........................................................................................................................15-1
Variable Video System

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M-DACS-T1 RFL Electronics Inc.
January 1, 2013 ix [phone]
Section 16. SPECIAL INTERFACES.................................................................................................................16-1
MA-490 Telnet I/O
NC
M
SNMP Access Gateway (SAG Module)
Section 17. APPLICATION NOTES (APPENDIX I) ...........................................................................................17-1
Section 18. ACCESSORY EQUIPMENT AND SYSTEM DRAWINGS..............................................................18-1
LIST OF ILLUSTRATIONS
Figure 2-1. Front panel of IMUX 2000 M-DACS................................................................................................................2-1
Figure 2-2. Functional diagram of Drop/Insert section of M-DACS....................................................................................2-3
Figure 2-3. Functional diagram of a point-to-point system..................................................................................................2-4
Figure 2-4. Functional diagram of a linear system...............................................................................................................2-4
Figure 2-5. Sample mapping of DACS module in Cross-connect mode..............................................................................2-6
Figure 2-6. Simplified diagram of DACS module in ILS mode............................................................................................2-7
Figure 2-7. DACS module Cross-Connect and Line-Switch mode data paths......................................................................2-8
Figure 2-8. DACS module paths and port numbers ............................................................................................................2-10
Figure 2-9. A typical DACS module and its active map.....................................................................................................2-12
Figure 2-10. M-DACS fiber ring configuration before a failure (sample configuration)....................................................2-14
Figure 2-11. M-DACS fiber ring configuration after a failure (sample configuration)......................................................2-15
Figure 2-12. Front and rear views of M-DACS shelf.........................................................................................................2-23
Figure 2-13. M-DACS Processor Module...........................................................................................................................2-25
Figure 2-14. M-DACS Framer Module...............................................................................................................................2-26
Figure 2-15. Functional diagram, CM4 Common Module, Communications Control.......................................................2-28
Figure 2-16. The meaning of Bus A and Bus B channel module settings..........................................................................2-30
Figure 2-17. MA-235/MA-240 rear panel view with pinouts ............................................................................................2-34
Figure 2-18. DACS MA-260, MA-262 and MA-263-Line I/Os, rear panel views and jumper settings .............................2-35
Figure 2-19. Typical M-DACS Optical Interface Adapter, rear panel view........................................................................2-37
Figure 2-20. SAG module used in M-DACS ......................................................................................................................2-39
Figure 2-21. SAG module connectivity overview...............................................................................................................2-41
Figure 2-22. MA-810 Module Adapter Connectors............................................................................................................2-42
Figure 2-23. SNMP Access Gateway DB9 Pin Out............................................................................................................2-43
Figure 2-24. Functional diagram, IMUX 2000 M-DACS Power Supply and Power Supply Alarm I/O module ..............2-44
Figure 2-25. Typical Power Supply Alarm I/O module, rear panel view...........................................................................2-46
Figure 2-26. Side view of M-DACS shelf, showing insertion of modules and Module Adapters .....................................2-47
Figure 2-27. Multiplexer Front-panel switches, indicators, and jacks................................................................................2-48
Figure 2-28. Front view of M-DACS shelf with door closed, showing the system status indicators.................................2-49
Figure 2-29. Overview of CM4 Groups and Functions.......................................................................................................2-57
Figure 2-30. Rear panel terminal strips on M-DACS powerI/O module............................................................................2-62
Figure 3-1. M-DACS Chassis, front view.............................................................................................................................3-2
Figure 3-2. M-DACS System Block Diagram......................................................................................................................3-3
Figure 3-3. Mapping Block Diagram ....................................................................................................................................3-7
Figure 3-4. Effect of direction settings on channel modules..............................................................................................3-12
Figure 4-1. Location of jumpers on the CM4 common module...........................................................................................4-2
Figure 4-2. CM4 switches and indicators used to display and set functions........................................................................4-3
Figure 4-3. Signal flow in Common Module for various loopbacks....................................................................................4-8
Figure 4-4. Example of a network management terminal which is simultaneously connected to multiple IMUX............4-18
Figure 4-5. Location of the alarm cut-off (ACO) switch on the Power Supply module....................................................4-26
Figure 4-6. View of CM4 showing switches used in Reset-Chart procedure.....................................................................4-29
Figure 4-7. Overview of CM4 Groups and Functions........................................................................................................4-30

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Figure 5-1. Typical desktop showing the RFL NMS version 10.3 icon...............................................................................5-3
Figure 5-2. PC directly connected to a node using an RS-232 cable or an RJ-45 Ethernet cable ........................................5-5
Figure 5-3. PC connected to a node from a remote location ................................................................................................5-6
Figure 5-4. Construction of a typical RS-232 cable between the PC and an MA-235.........................................................5-6
Figure 5-5. PC at a remote location connected to 4 nodes, where each node is a different network....................................5-7
Figure 5-6. PC at a remote location connected to 4 nodes, where all nodes are in the same network..................................5-8
Figure 5-7. Typical networks and communications paths....................................................................................................5-9
Figure 5-8. Network Management Software Main Window..............................................................................................5-10
Figure 5-9. Basic drawing of the network used in the example .........................................................................................5-14
Figure 5-10. IMUX 2000 M-DACS Network Example.....................................................................................................5-15
Figure 5-11. Network Management Software Main window.............................................................................................5-17
Figure 5-12. Edit Network Information Window...............................................................................................................5-18
Figure 5-13. Read Network Setup Window .......................................................................................................................5-21
Figure 5-14. Auto-Configure Options Window .................................................................................................................5-22
Figure 5-15. Network View Window.................................................................................................................................5-23
Figure 5-16. Display/Change Node window for node 1.....................................................................................................5-24
Figure 5-17. DACS Module Configuration Window .........................................................................................................5-25
Figure 5-18. Point-to-point system timing setting...............................................................................................................5-29
Figure 5-19. M-DACS Drop/insert Linear system timing setting .......................................................................................5-30
Figure 5-20. M-DACS Ring system timing setting.............................................................................................................5-31
Figure 5-21. Port 1 Configuration parameters window for a T1 system............................................................................5-32
Figure 5-22. DACS module Map window for Node 1 of a T1 system...............................................................................5-35
Figure 5-23. Typical FDL signal routing for map 0...........................................................................................................5-36
Figure 5-24. Map Select Criteria window for Map 1 of a T1 or E1 system.......................................................................5-37
Figure 5-25. DACS DS0 Map 0 window for a T1 system..................................................................................................5-40
Figure 5-26. Robbed Bit Signal Selects window for T1 systems only...............................................................................5-42
Figure 5-27. DACS Module Status window........................................................................................................................5-43
Figure 5-28. Alert/Alarm Details window...........................................................................................................................5-45
Figure 5-29. CM4 Configuration And Status Window ......................................................................................................5-46
Figure 5-30. Configuration and Status window for the VF5C ...........................................................................................5-47
Figure 5-31. View or Change a Card window for the VF16B............................................................................................5-48
Figure 5-32. Configuration and Status window for the DS562I.........................................................................................5-49
Figure 5-33. Network View window after connecting lines to nodes .................................................................................5-50
Figure 5-34. Typical Alarm Log report..............................................................................................................................5-52
Figure 5-35. Page 1 of typical Complete Network Information Report.............................................................................5-53
Figure 5-36. Typical Connection View Report ..................................................................................................................5-54
Figure 5-37. Page 1 of a typical DACS Map Report..........................................................................................................5-55
Figure 5-38. Page 1 of a Typical DACS MapDifference Report........................................................................................5-56
Figure 5-39. Typical Difference Report.............................................................................................................................5-57
Figure 5-40. Page 1 of a typical Event Log Report............................................................................................................5-58
Figure 5-41. Typical Network Diagram Report .................................................................................................................5-59
Figure 6-1. Local connection................................................................................................................................................6-2
Figure 6-2. Remote connection over a dial-up circuit..........................................................................................................6-2
Figure 6-3. Remote connection over a public switched network .........................................................................................6-3
Figure 7-1. Power supply removal and installation...............................................................................................................7-3
Figure 7-2. M-DACS chassis mounting dimensions.............................................................................................................7-4
Figure 7-3. Terminal strip power connections IMUX 2000 M-DACS multiplexers with single power supply modules ....7-7
Figure 7-4. Teminal strip power connections IMUX 2000 M-DACS multiplexers with redundant power supply modules7-8
Figure 7-5. Label on front door for recording input voltage configuration........................................................................7-11
Figure 7-6. Caution Label inside front door of M-DACS..................................................................................................7-11
Figure 7-7. Typical three-terminal IMUX 2000 M-DACS system ....................................................................................7-13
Figure 7-8. CM4 front panel LED indicators.....................................................................................................................7-16
Figure 7-9. CM4 front panel LED indicators.....................................................................................................................7-19
Figure 7-10. Adding a new channel module to an existing system....................................................................................7-21

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Figure 8-1. Basic troubleshooting categories.......................................................................................................................8-1
Figure 8-2. Using IMUX 2000 M-DACS T1 loopbacks......................................................................................................8-4
Figure 8-3. In-service monitoring of a T1 circuit.................................................................................................................8-7
Figure 8-4. Out-of-service testing of a T1 circuit.................................................................................................................8-8
Figure 8-5. Testing an individual channel on an in-service T1 system................................................................................8-9
Figure 8-6. Testing channel modules using a local T1 loopback .......................................................................................8-10
Figure 9-1. Schematic, IMUX 2000 M-DACS Power Supply (Drawing No. D-105499-1-G, Sheet 1 of 2)...................9-11
Figure 9-2. Schematic, IMUX 2000 Power Supply, 24Vdc 48/125 Vdc and 120 Vac High Power..................................9-15
Figure 9-3. Schematic, IMUX 2000 Power Supply, 220 Vac............................................................................................9-21
Figure 9-4. Schematic, IMUX 2000 Power Supply Alarm I/O..........................................................................................9-23
Figure 9-5. Schematic, IMUX 2000 Power Supply, Alarm I/O 24 Vdc.............................................................................9-25
Figure 10-1. T1 Superframe (SF) format............................................................................................................................10-1
Figure 10-2. T1 Extended Superframe (ESF) format.........................................................................................................10-1
LIST OF TABLES
Table 2-1. Comparison of cross-connect and line-switch modes of operation......................................................................2-9
Table 2-2. M-DACS A, MAP 0..........................................................................................................................................2-16
Table 2-3. M-DACS A, MAP 1..........................................................................................................................................2-17
Table 2-4. M-DACS B, MAP 0..........................................................................................................................................2-18
Table 2-5. M-DACS B, MAP 4..........................................................................................................................................2-19
Table 2-6. M-DACS C, MAP 0..........................................................................................................................................2-20
Table 2-7. M-DACS D, MAP 0..........................................................................................................................................2-21
Table 2-8. Processor module controls and indicators.........................................................................................................2-25
Table 2-9. Framer module controls and indicators..............................................................................................................2-26
Table 2-10. Characteristics of IMUX 2000 Optical Interface Adapters.............................................................................2-38
Table 2-11. SAG module controls and indicators ..............................................................................................................2-40
Table 2-12. Characteristics of Power Supply Alarm I/O modules .....................................................................................2-45
Table 2-13. System status indicators and the ACO switch.................................................................................................2-50
Table 2-14. T1 test and monitor bantam jacks ...................................................................................................................2-52
Table 2-15. Indicators and toggle switches used to display and set T1 Common Module functions.................................2-53
Table 2-16. T1 Common Module Standard groups and functions .....................................................................................2-54
Table 2-17. T1 Common Module Supplementary groups and functions............................................................................2-55
Table 2-18. T1 receive status functions..............................................................................................................................2-56
Table 2-19. T1 timing status functions...............................................................................................................................2-56
Table 2-20. Loop, Internal and External Indicators............................................................................................................2-58
Table 2-21. TX, LPBK and ERR Indicators.......................................................................................................................2-59
Table 2-22. RX, BPV and FRM Indicators........................................................................................................................2-60
Table 2-23. Terminal assignments, M-DACS shelf input power terminal strip.................................................................2-61
Table 2-24. Terminal assignments, M-DACS shelf rear-panel ALARMS terminal strip ..................................................2-61
Table 2-25. Setup jumpers and DIP switches.....................................................................................................................2-63
Table 3-1. Current Draw of IMUX Modules Versus Power Supply Capacity For Main Shelf..........................................3-15
Table 4-1. Setting CM4 jumpers...........................................................................................................................................4-2
Table 4-2. TSEL group.........................................................................................................................................................4-6
Table 4-3. LPBK group........................................................................................................................................................4-7
Table 4-4. BLNK group .......................................................................................................................................................4-9
Table 4-5. RVU1 group......................................................................................................................................................4-10
Table 4-6. DIAG group......................................................................................................................................................4-11
Table 4-7. Changing multiplexer network address from 001 to 040..................................................................................4-13
Table 4-8. SIO group..........................................................................................................................................................4-14
Table 4-9. Squelch Settings................................................................................................................................................4-20
Table 4-10. INTF group .....................................................................................................................................................4-22
Table 4-11. Using the ACO switch ....................................................................................................................................4-26

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Table 4-12. Contents of the Supplementary Configuration Group......................................................................................4-28
Table 5-1. List of modules and cards used in the example that must be configured into the network...............................5-14
Table 5-2. Status LEDs under NMS DACS Module Status Screen ...................................................................................5-44
Table 5-3. CM4 module parameters...................................................................................................................................5-65
Table 5-4. M-DACS module parameters............................................................................................................................5-67
Table 7-1. Indicator status during M-DACS multiplexer loopback ...................................................................................7-16
Table 7-2. Indicator status during M-DACS multiplexer loopback ...................................................................................7-19
Table 8-1. CM4 Diagnostic Counters.................................................................................................................................8-11
Table 8-2. CM4 Status Messages.......................................................................................................................................8-15
Table 9-1. Power Supply And Power Supply Alarm I/O, General Information...................................................................9-1
Table 9-2. IMUX 2000 M-DACS Power Supply Specifications..........................................................................................9-2
Table 9-3. Power Supply Alarm I/O Application Information.............................................................................................9-9
Table 9-4. Power Supply and Power Supply Alarm I/O Schematics .................................................................................9-10

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 xiii [phone]
LIST OF EFFECTIVE PAGES
When revisions are made to the IMUX 2000 Instruction Manual, the entire section where revisions were made is replaced.
For the edition of this manual dated January 1, 2013, the sections are dated as follows:
Front Matter January 1, 2013
Section 1 April 2005
Section 2 October 16, 2012
Section 3 October 25, 2004
Section 4 July 18, 2008
Section 5 February 28, 2006
Section 6 October 25, 2004
Section 7 October 25, 2004
Section 8 October 25, 2004
Section 9 August 7, 2012
Section 10 April 1, 2007
Section 11 August 7, 2012
DA-91I March 6, 2002
DA-121I February 10, 2000
DA-291B April 13, 2010
Section 12 August 7, 2012
DS-562I June 14, 2007
DS-562NC July 5, 2012
DS-961D October 14, 2004
OCUDP July 15, 2010
Section 13 January 1, 2013
VF-5A June 28, 2005
VF-5C October 8, 2012
VF-6I December 15, 2011
VF-8A August 6, 2010
VF-15C August 7, 2012
VF-16B January 17, 2007
Section 14 August 7, 2012
DS-TT January 31, 2008
Status Module July 15, 2007
TMX/TMR January 25, 2012
Section 15 October 25, 2004
Variable Video System October 4, 2000
Section 16 January 1, 2013
MA-490 Telnet I/O March 6, 2007
NCM November1,2012
SNMP Access Gateway (SAG Module) August 10, 2009
Section 17 November 26, 2007
Application Note 14 August 30, 2001
Application Note 15 August 30, 2001
Application Note 17 March 26, 2002
Application Note 19 June 4, 2007
Section 18 October 25, 2004

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
M-DACS-T1 RFL Electronics Inc.
January 1, 2013 xiv [phone]
REVISION RECORD
Rev Description Date Approval
10-25-04 New Release - The M-DACS-T1 Instruction Manual dated 10-25-04
has been created from the IMUX2000CM4-T1 Instruction Manual
dated 8-16-04 and the 8-Port DACS Instruction Manual dated 9-27-02.
10-25-04 CS
4-1-06 Updates to Section 2, 4 and 5 as per CAR 2000-0456
Section 2 as per ECO 2000-541, updates to Data Sheets. 4-1-06 TG
4-1-07 Update Section 2 as per ECO 2000-561 and CAR 2000-0421 (jumper
on power supply board). Remove Errata Sheet MCMDACST1-004.
Update Section 9, removed spare parts at the board level.
Updated Data Sheets. Add Index to Section 10.
4-1-07 TG
12-1-07 Add new HP Power Supplies to Section 9. Update Data Sheets and
add new (DA-291B and DS-562NC). 12-1-07 TG
8-1-08 Extend warranty to 5-years. Update Section 4 as per ECO 2000-662.
Update Data Sheets. 8-1-08 TG
11-17-09 The following Data Sheets are now obsolete and have been removed
from the Instruction Manual with this release:
Section 11 – DA-191A, DA-191B
Section 12 – DS-64NC
Section 13 – VF-10D
Updates to Section 2 and 9.
11-17-09 TG
8-7-12 Update to Section 9. Data Sheets revised, SAG Module added. 8-16-12 TG
1-1-13 Section 2 updated, data sheet VF-5C and NCM revised. 1-1-13 TG

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
M-DACS-T1 RFL Electronics Inc.
April, 2005 1-1 [phone]
Section 1. PRODUCT INFORMATION

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
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left blank
M-DACS-T1 RFL Electronics Inc.
April, 2005 1-2 [phone]

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.
April 2005 IMUX 2000 T1/E1 MDACS
1
The Fifth Generation Multiplexer
designed to meet the needs of your
Telecommunications Network
Designed for harsh environments, the new IMUX 2000
T1/E1 MDACS creates a new class of Intelligent Multi-
plexer with features such as Digital Access Cross-Con-
nect Switch,built in CSU functionality and DS0 squelch-
ing capability.
The unit provides full featured, Drop-and-Insert capabil-
ity for each voice frequency circuit or any signal that can
be transmitted in a DS0 channel. The multiplexer has
electrical and a wide variety of optical fiber (both
singlemode and multimode) interfaces to simplify sys-
tem configuration. Channel cards are available for voice,
data, telemetry, teleprotection, video and ethernet appli-
cations. The IMUX 2000 T1/E1 MDACS supports many
IMUX 2000
T1/E1 MDACS
Multiplexer with Digital Access
Cross-Connect Switch
types of network layouts such as Spur, Hot Standby and
Ring topologies. The IMUX 2000 T1/E1 MDACS is both
hardware and software configurable. The unit offers the
ultimate network management system. It operates in a
Windows™ point-and-click environment and provides net-
work visibility from any node which allows for remote pro-
visioning, monitoring and alarm reporting.
The IMUX 2000 T1/E1 MDACS is compact, modular in
design and compatible with previous generations of RFL
Multiplexers. For a product that meets and exceeds your
telecommunication needs, advance into this new class of
hardened multiplexer and make the Intelligent choice, the
IMUX 2000 Intelligent T1/E1 MDACS.

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.
April 2005 IMUX 2000 T1/E1 MDACS
2
Key Features and Benefits
•Substation Hardened
The IMUX 2000 T1/E1 MDACS is designed for harsh environ-
ments and has a wide temperature range of -20°C to +65°C.
It meets the IEEE/ANSI standards C.37.90-1989, C.37.90.1
and C.37.90.2 for SWC, fast transient and EMI.
•Reliability
The IMUX 2000 T1/E1 MDACS provides enhanced reliabil-
ity by offering optional redundant power supplies.
•Speed
The IMUX 2000 T1/E1 MDACS is designed to handle time
sensitive applications such as Protective Relaying. The
Drop-and-Insert through-channel delay is less than 25 mi-
croseconds. The IMUX 2000 T1/E1 MDACS has an aver-
age reframe time of less than 25 milliseconds.
•DS0 Squelching
The IMUX 2000 T1/E1 MDACS has the ability to squelch
(turn off) the output of a channel module in the Multiplexer
upon loss of synchronization. This feature provides secu-
rity against false tripping on 4-wire analog transfer trip chan-
nels and older digital equipment (with limited error check-
ing) during loss of sync and protects against ‘pink’ noise
conditions, which result from cross-talk or the frame search.
This feature is ideal for preventing false tripping due to sys-
tem malfunction.
•CSU Functionality
The IMUX 2000 T1/E1 MDACS offers a built in CSU func-
tionality that meets applicable standards for protection in-
cluding FCC Part 68 approval for direct connection into the
Public Switched Telephone Network (PSTN). When en-
abled, the unit will respond to generated loopback codes
compliant to either ANSI T1.403 or AT&T TR 54016. It will
also maintain and allow local and remote retrieval of perfor-
mance measurements in accordance with either ANSI
T1.403 or AT&T TR 54016.
•Modular Design
The IMUX 2000 T1/E1 MDACS incorporates a midplane
motherboard design. Channel modules plug into the front
of the unit, and matching module adapter for I/O connec-
tions plug into the rear. This eliminates the need for internal
chassis wiring when adding new channel cards, simplifying
the upgrade.
•Automation
The IMUX 2000 T1/E1 MDACS offers the ultimate Network
Management system which operates in a Windows TM point-
and-click environment. The optional SNMP based manage-
ment reporting software can be used when integrated as
part of a larger enterprise system. Network visibility is
available from any node which allows remote provisioning,
monitoring and alarm reporting. Intuitive graphical user in-
terface with color coded DACS maps.
•Fiber Optic or Electric Interfaces
The IMUX 2000 T1/E1 MDACS can be equipped with either
electrical T1/E1 interfaces or Optical Interface Adapters (OIA’s).
The electrical T1 interface is equipped with Line Build-Out
(LBO) networks for operation of up to 6,000 feet from the DSX.
The OIA’s are available in a wide range of multimode,
singlemode, LED or laser combinations to accommodate
1300nm and 1550nm wavelengths.
•Channel Interfaces
A wide range of interfaces unique to the utility and the trans-
portation market is offered. It also offers a wide range of
Voice and Data, Status, Telemetry, Ethernet, Transfer Trip
and Video channel interfaces to meet most communica-
tions requirements.
•Fast Restoration
When applied to diverse communication routes, such as
Ring or Hot-Standby networks, the IMUX 2000 T1/E1
MDACS is capable of switch times programmable down to
1 millisecond.
•Diverse Networks
The IMUX 2000 T1/E1 MDACS supports many types of net-
work layouts such as Linear, Spurs, Hot-Standby and Ring
topologies. It is also designed for operation over SONET/SDH
networks taking into consideration the critical time-delay is-
sues associated with Protective Relaying.
•SONET and SDH Applications
Protective Relaying can finally be applied over non-propri-
etary SONET/SDH equipment. With emphasis placed on
rapid break healing, the IMUX 2000 T1/E1 MDACS ad-
dresses the critical time issues associated with Protective
Relaying making it the ideal and Intelligent choice when
interfacing to SONET/SDH networks. The IMUX 2000 T1/
E1 MDACS bridges the gap between SONET/SDH and
substations providing DS0 gateways onto the network. Also,
through its own switching techniques, can overcome the
longer switch times and unequal channel delay issues as-
sociated with SONET/SDH.
•Digital Access Cross-Connect Switch
Functionality provides full cross-connect capability as well
as a reliable level of system restoration. The IMUX 2000
T1/E1 MDACS enables the termination of up to four [4]
T1/E1 ports while also providing full DS0 Time Slot Inter-
change capability. System restoration is accomplished
through the use of alternate DS0, Time Slot Interchanged
maps. The alternate maps are predetermined and pre-pro-
grammed through our user friendly Network Management
Software. An alternate DS0 map is invoked automatically
upon detection of T1/E1 failures (e.g. AIS, Loss of Frame,
excessive BER). The time necessary to switch to an alter-
nate map, upon detection of failure, is programmable down
to 1 millisecond.

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.
April 2005 IMUX 2000 T1/E1 MDACS
3
With the increasing demand for faster, more efficient ways
to manage the flow of traffic, customers need a communi-
cation infrastructure that allows the system to advance as
the technology develops. That is why the IMUX 2000 T1/
E1 MDACS, with its unique harsh environments design, is
the preferred choice of communication for the Transporta-
tion Industry. The IMUX 2000 T1/E1 MDACS is designed
to be used as part of a large traffic management system
working in conjunction with higher bandwidth SONET/SDH
networks or in stand-alone T1/E1 networks.
Applications for the product include: roadside signal acqui-
sition and transmission from vehicle loop detectors, com-
pressed digital video, camera control, toll collection, status
and alarm reporting, tunnel ventilation control, and voice
and data traffic signal control systems. The compact and
robust design and the ability to work under harsh condi-
tions makes the IMUX 2000 T1/E1 MDACS the best multi-
plexer for transportation applications. The network man-
agement software provides ease of maintenance with Win-
dows™ based GUI software. The optional SNMP based
management reporting software can be used when inte-
grated as part of a larger enterprise system.
Telecommunication Solutions ...
... Transportation Industry
Designed specifically for the unique need of the harsh sub-
station environments, the IMUX 2000 T1/E1 Multiplexer in-
corporates special design characteristics which allow it to
meet ANSI / IEEE / IEC standards for operation in harsh
environments (RFI, SWC, EMI and Fast Transient). The
Node through delay averages 250 microseconds, including
the fiber heads (excluding the communications medium).
The DS0 squelching (patent pending) capability allows the
Common Logic Module to squelch (turn off) the output of a
channel module in the Multiplexer upon loss of synchroni-
zation. This feature provides security against false tripping
on 4-wire analog transfer trip channels and older digital
equipment (with limited error checking). These features in
the IMUX 2000 T1/E1 MDACS, address the critical time is-
sues associated with protective relaying, making it ideal to
be used in the electric power utilities industry. In addition,
the multiplexer has the Transfer Trip and Current Differen-
tial interfaces required for the utility market.
... Electric Power Utilities

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.
April 2005 IMUX 2000 T1/E1 MDACS
4
Above is an example of a typical utility / traffic system solution. It is made up of two SONET/SDH rings as the communi-
cations backbone. The IMUX 2000 T1/E1 MDACS’ are configured to work in a Point-to-Point, Star and Stand-Alone 2-
Fiber Loop topology over the SONET/SDH system.
The IMUX 2000 T1/E1 MDACS carries RTU and phone circuits from several substations to the operations center. It also
carries current differential relay data between substations.
The IMUX 2000 T1/E1 MDACS carries roadside signals, transmission data from vehicle loop detectors, compressed
digital video, camera control, toll collection information, status and alarm reporting, voice and data traffic signal controls
back to the operations center.
Application Solutions ...