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.
RFL Electronics Inc.
INSTRUCTION MANUAL
IMUX 2000
8-Port T1/E1 DACS
WITH
REDUNDANT CAPABILITY
NOTICE
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assume no liability for losses incurred as a result of out-of-date or incorrect information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.
Publication Number MC 2000DACS8P
Printed In U.S.A. ©Copyright 2007 by
Revised April 18, 2007 RFL Electronics Inc.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 i [phone]

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 ii [phone]
WARRANTY
Except where noted, all RFL Electronics Inc. products come with a one-year warranty from date of
delivery 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 DACS is warranted against defects in material and workmanship for one year from
date of shipment. 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 that 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.
RFL Electronics Inc.
353 Powerville Road
Boonton Township, NJ 07005-0239

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
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 2000 DACS8P RFL Electronics Inc.
April 18, 2007 iii [phone]

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.
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.
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.
!
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 iv [phone]

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 v [phone]
GOVERNMENT REQUIREMENTS
Certain governments require that instructions pertaining to connection to the telephone network be
included in the installation and operation manual. Specific instructions are listed in the following
sections.
Notice to users in the United States
1. All T1 Ports using the MA-260 I/O module comply with Part 68 of the FCC rules and the
requirements adopted by the ACTA. On the inside front panel of this equipment is a label that
contains, among other information, a product identifier in the format US:AAAEQ##TXXXX. If
requested, this number must be provided to the telephone company.
2. The T1 network connection should be made using a Universal Service Order Code (USOC)
type RJ-48C jack. The Service Order Code 6.0N should be specified to the telephone company
when ordering the T1 line. In addition, the proper Facility Interface Code must be specified to
the telephone company. E.g. 04DU9-1SN is the proper FIC for 1.544 Mbps ANSI ESF and
B8ZS without line power. The equipment can be configured to support several framing
formats and line signaling techniques. The equipment’s configuration must correspond to the
T1 line’s parameters.
3. A plug and jack used to connect the equipment to the premises wiring and telephone network
must comply with the applicable FCC Part 68 rules and requirements adopted by the ACTA.
See installation instructions for details on wiring.
4. If this equipment, 8-Port T1/E1 DACS w/Redundant Capability, causes harm to the telephone
network, the telephone company will notify you in advance that temporary discontinuance of
service may be required. But if advance notice isn't practical, the telephone company will
notify the customer as soon as possible. Also, you will be advised of your right to file a
complaint with the FCC if you believe it is necessary.
5. The telephone company may make changes in its facilities, equipment, operations or
procedures that could affect the operation of the equipment. If this happens the telephone
company will provide advance notice in order for you to make necessary modifications to
maintain uninterrupted service.
6. If trouble is experienced with this equipment, 8-Port T1/E1 DACS w/Redundant Capability, for
repair or warranty information, please contact RFL Electronics, Inc. at 1-973-334-3100. If the
equipment is causing harm to the telephone network, the telephone company may request that
you disconnect the equipment until the problem is resolved. Refer to section 8 for
troubleshooting some common system problems.

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 vi [phone]
Notice to users in Canada
1. The Industry Canada label identifies certified equipment. This certification means that the
equipment meets certain telecommunications network protective, operational, and safety
requirements. Industry Canada does not guarantee the equipment will operate to user’s satisfaction.
2. Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the inside wiring associated with a single line
individual service may be extended by means of a certified connector assembly. The customer
should be aware that compliance with the above conditions may not prevent degradation of service
in some situations.
3. Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
4. Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone lines, and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
CAUTION: Users should not attempt to make electrical ground connections by themselves, but
should contact the appropriate inspection authority or an electrician, as appropriate.

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 vii [phone]
TABLE OF CONTENTS
GOVERNMENT REQUIREMENTS...................................................................................................................................... v
TABLE OF CONTENTS.......................................................................................................................................................vii
LIST OF ILLUSTRATIONS..................................................................................................................................................xi
LIST OF TABLES................................................................................................................................................................xiii
Section 1. PRODUCT INFORMATION .............................................................................................................................1-1
Section 2. FUNCTIONAL DESCRIPTION OF 8-PORT DACS ........................................................................................2-1
2.1 INTRODUCTION......................................................................................................................................................2-1
2.2 GENERAL DESCRIPTION ......................................................................................................................................2-1
2.3 FRONT PANEL DESCRIPTION..............................................................................................................................2-2
2.4 CROSS-CONNECT MODE OF OPERATION.........................................................................................................2-2
2.5 INTELLIGENT LINE SWITCH (ILS) MODE OF OPERATION ...........................................................................2-4
2.6 COMPARISON OF CROSS-CONNECT AND LINE-SWITCH MODES................................................................2-5
2.7 REVERSION ..............................................................................................................................................................2-7
2.8 REDUNDANT PROTECTION..................................................................................................................................2-9
2.9 NORMAL MODE/STAND-ALONE MODE.............................................................................................................2-9
2.10 DACS MAPPING..................................................................................................................................................2-10
2.10.1 INTRODUCTION............................................................................................................................................2-10
2.10.2 DS0 GROOMING............................................................................................................................................2-11
2.10.3 ERROR DETECTION AND SWITCHING....................................................................................................2-11
2.10.4 ERROR RECOVERY.....................................................................................................................................2-11
2.10.5 DESCRIPTION OF A TYPICAL DACS MAP...............................................................................................2-13
2.10.6 MAPPING OF A DACS RING .......................................................................................................................2-13
2.10.7 MAP SELECT CRITERIA..............................................................................................................................2-13
Section 3. CONFIGURATION AND SETUP.....................................................................................................................3-1
3.1 INTRODUCTION......................................................................................................................................................3-1
3.2 TERMINAL MULTIPLEXER WITH DACS ...........................................................................................................3-1
3.3 TWO TERMINAL SYSTEM WITH DACS .............................................................................................................3-3
3.4 DROP/INSERT MULTIPLEXER WITH DACS ......................................................................................................3-4
3.5 DROP/INSERT SYSTEM WITH DACS ..................................................................................................................3-5
3.6 DACS USED IN A RING CONFIGURATION........................................................................................................3-6
3.7 DACS IN STAND ALONE MODE ...........................................................................................................................3-9
Section 4. DACS COMPONENTS......................................................................................................................................4-1
4.1 DACS COMPONENTS............................................................................................................................................4-1
4.1.1 DACS CHASSIS.................................................................................................................................................4-2
4.1.2 DISPLAY MODULE..........................................................................................................................................4-3
4.1.3 JACKFIELD/RELAY MODULE.......................................................................................................................4-5
4.1.4 MOTHERBOARD..............................................................................................................................................4-8
4.1.5 DACS MODULE..............................................................................................................................................4-10
4.1.6 REDUNDANT MODULE................................................................................................................................4-13
4.1.7 POWER SUPPLY MODULES.........................................................................................................................4-15
4.1.7.1 INTRODUCTION......................................................................................................................................4-15
4.1.7.2 SPECIFICATIONS....................................................................................................................................4-16
4.1.7.3 THEORY OF OPERATION (9547-910, -920, -930 and -950) .................................................................4-17
4.1.7.4 POWER SUPPLY REDUNDANT OPERATION.....................................................................................4-17
4.1.8 SAG MODULE.................................................................................................................................................4-18
4.1.9 COMMUNICATIONS I/O ...............................................................................................................................4-21
4.1.10 LINE I/Os (T1/E1)..........................................................................................................................................4-22
4.1.11 COAX LINE I/O (E1).....................................................................................................................................4-23
4.1.12 FIBER I/Os......................................................................................................................................................4-24
4.1.12.1 INTRODUCTION....................................................................................................................................4-24

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 viii [phone]
4.1.13 SAG I/O FOR DACS-R, MA 255...................................................................................................................4-27
4.1.14 POWER SUPPLY ALARM I/O MODULE...................................................................................................4-28
4.1.14.1 DESCRIPTION........................................................................................................................................4-28
4.2 DETERMINING DACS CHASSIS POWER REQUIREMENTS ..........................................................................4-30
Section 5. REDUNDANT DACS THEORY OF OPERATION..........................................................................................5-1
5.1 INTRODUCTION......................................................................................................................................................5-1
5.1.1 SYSTEM LEVEL ...............................................................................................................................................5-1
5.2 HARDWARE..............................................................................................................................................................5-2
5.2.1 COMMON FEATURES ......................................................................................................................................5-2
5.2.1.1 JTAG.............................................................................................................................................................5-2
5.2.1.2 PROGRAMMABLE TESTPOINTS.............................................................................................................5-3
5.2.1.3 ACTEL ID & REVISION.............................................................................................................................5-3
5.2.1.4 ECB REVISION ...........................................................................................................................................5-3
5.2.2 SYSTEM LEVEL ................................................................................................................................................5-3
5.2.3 PROCESSOR MODULE.....................................................................................................................................5-4
5.2.3.1 OVERVIEW .................................................................................................................................................5-4
5.2.3.2 POWER SUPPLY.........................................................................................................................................5-4
5.2.3.3 PROCESSOR................................................................................................................................................5-6
5.2.4 FRAMER MODULE ...........................................................................................................................................5-8
5.2.5 REDUNDANCY MODULE..............................................................................................................................5-11
5.3 DACS FUNCTIONAL DESCRIPTION...................................................................................................................5-13
5.3.1 PORT SETTINGS..............................................................................................................................................5-13
5.3.1.1 PORT MODES............................................................................................................................................5-13
5.3.1.2 PORT CONFIGURATION.........................................................................................................................5-14
5.3.2 PORT FAILURE DETECTION ........................................................................................................................5-14
5.3.3 DACS MAPPING FUNCTIONS.......................................................................................................................5-15
5.3.3.1 MAP DATA................................................................................................................................................5-15
5.3.3.2 RECEIVE DATA........................................................................................................................................5-17
5.3.3.3 TRANSMIT DATA ....................................................................................................................................5-17
5.3.4 ILS FUNCTIONS ..............................................................................................................................................5-18
5.3.5 HOT-STANDBY MODE...................................................................................................................................5-19
5.4 REDUNDANCY FUNCTIONAL DESCRIPTION .................................................................................................5-19
5.4.1 OVERVIEW ......................................................................................................................................................5-19
5.4.2 GENERAL CONVENTIONS............................................................................................................................5-20
5.4.2.1 SIGNAL PASSING.....................................................................................................................................5-20
5.4.2.2 SPEED.........................................................................................................................................................5-20
5.4.2.3 UNNECESSARY SWAPPING ..................................................................................................................5-20
5.4.3 FAULT DETECTION........................................................................................................................................5-20
5.4.3.1 FRAMER MODULE FAULT DETECTION.............................................................................................5-21
5.4.3.2 PROCESSOR MODULE FAULT DETECTION.......................................................................................5-22
5.4.3.3 REDUNDANCY MODULE FAULT DETECTION..................................................................................5-22
5.4.4 DECISION LOGIC............................................................................................................................................5-24
5.4.5 SWITCHING CONTROL..................................................................................................................................5-25
Section 6. INSTALLATION AND CHECK-OUT..............................................................................................................6-1
6.1 INTRODUCTION......................................................................................................................................................6-1
6.2 HARDWARE INSTALLATION...............................................................................................................................6-1
6.2.1 UNPACKING .....................................................................................................................................................6-2
6.2.1.1 INDIVIDUAL CHASSIS..............................................................................................................................6-2
6.2.1.2 INTERCONNECTED CHASSIS..................................................................................................................6-2
6.2.2 MOUNTING.......................................................................................................................................................6-3
6.2.2.1 INDIVIDUAL CHASSIS.............................................................................................................................6-4
6.2.2.2 INTERCONNECTED CHASSIS INSTALLED IN RACK OR CABINET................................................6-5
6.2.2.3 INTERCONNECTED CHASSIS MOUNTED ON SHIPPING RAILS .....................................................6-5
6.2.2.4 VENTILATION...........................................................................................................................................6-5
6.2.3 CONNECTIONS.................................................................................................................................................6-6

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 ix [phone]
6.2.3.1 MAKING CONNECTIONS TO TERMINAL BLOCKS............................................................................6-6
6.2.3.2 MAKING CONNECTIONS TO OPTICAL INTERFACE ADAPTERS.....................................................6-7
6.2.3.3 INPUT POWER CONNECTIONS..............................................................................................................6-8
6.2.3.4 CHASSIS GROUND CONNECTIONS.....................................................................................................6-11
6.2.4 POWER SUPPLY INPUT VOLTAGE CHECK..............................................................................................6-12
6.2.5 APPLYING POWER........................................................................................................................................6-14
6.3 INSTALLING DACS NETWORK CONFIGURATION FILE ...............................................................................6-15
6.3.1 INTRODUCTION..............................................................................................................................................6-15
6.3.2 NMS STARTUP ................................................................................................................................................6-15
6.3.3 CONNECTING YOUR PC TO A NODE .........................................................................................................6-16
6.3.4 DOWNLOADING CONFIGURATION FILES................................................................................................6-16
6.3.5 VERIFYING CONFIGURATION FILES.........................................................................................................6-17
6.4 SYSTEM CHECKOUT ............................................................................................................................................6-18
6.4.1 INITIAL NETWORK MANAGEMENT COMMUNICATION TEST............................................................6-18
6.4.2 NETWORK STATUS........................................................................................................................................6-18
6.4.3 PREVENTING MAP SWITCHING FOR TROUBLESHOOTING ................................................................6-19
6.4.4. DS0 VERIFICATION.......................................................................................................................................6-19
6.5 SAG MODULE INSTALLATION...........................................................................................................................6-20
6.5.1 MOUNTING......................................................................................................................................................6-20
6.5.2 POWER INPUT.................................................................................................................................................6-20
6.5.3 SERIAL PORTS ...............................................................................................................................................6-21
6.5.4 ETHERNET......................................................................................................................................................6-21
Section 7. NETWORK MANAGEMENT SOFTWARE......................................................................................................... 1
7.1 GENERAL INFORMATION........................................................................................................................................ 1
7.2 SYSTEM REQUIREMENTS ....................................................................................................................................... 1
7.3 SOFTWARE INSTALLATION................................................................................................................................... 2
7.3.1 INSTALLING THE SOFTWARE......................................................................................................................... 2
7.3.2 UN-INSTALLING THE SOFTWARE.................................................................................................................. 4
7.4 CONNECTING YOUR PC TO THE NETWORK....................................................................................................... 5
7.5 NETWORK COMMUNICATION PATHS ................................................................................................................ 10
7.6 USING THE NETWORK MANAGEMENT SOFTWARE ICONS.......................................................................... 11
7.7 EXAMPLES OF CONFIGURING A NETWORK .................................................................................................... 14
7.7.1 STEPS REQUIRED TO CONFIGURE A T1 NETWORK WITH AN RFL CM3R (EXAMPLE 1).................. 14
7.7.1.1 GETTING STARTED................................................................................................................................... 15
7.7.1.2 SETTING UP THE HARDWARE ............................................................................................................... 17
7.7.1.3 CONNECTING THE PC TO THE NETWORK .......................................................................................... 17
7.7.1.4 STARTING THE NETWORK MANAGEMENT SOFTWARE................................................................. 17
7.7.1.5 STARTING A NEW NETWORK CONFIGURATION .............................................................................. 17
7.7.1.6 SELECTING NETWORK READ ................................................................................................................ 21
7.7.1.7 SELECTING NETWORK VIEW................................................................................................................. 24
7.7.1.8 THE DISPLAY/CHANGE NODE WINDOW............................................................................................. 25
7.7.1.9 VIEW OR CHANGE A CARD WINDOW FOR THE CM3R .................................................................... 26
7.7.1.10 DACS GENERAL CONFIGURATIONS WINDOW FOR NODE 1........................................................ 27
7.7.1.11 PORT 1 CONFIGURATION PARAMETERS............................................................................................ 31
7.7.1.12 MAP WINDOW........................................................................................................................................... 35
7.7.1.13 ROBBED BIT SIGNALING SELECT WINDOW ..................................................................................... 42
7.7.1.14 VIEW OR CHANGE A CARD WINDOW FOR THE VF5A .................................................................... 44
7.7.1.15 VIEW OR CHANGE A CARD WINDOW FOR THE VF16B................................................................... 45
7.7.1.16 CONNECTING LINES TO NODES.......................................................................................................... 46
7.7.1.17 WRITING TO THE NETWORK ............................................................................................................... 47
7.7.1.18 VIEWING REPORTS................................................................................................................................. 47
7.7.1.19 POLLING FOR ALARMS IN BATCH MODE......................................................................................... 55
7.7.1.20 AUTO POLLING........................................................................................................................................ 55
7.7.1.21 SAVE SETTINGS IN A FILE.................................................................................................................... 55
7.7.2 STEPS REQUIRED TO CONFIGURE A NETWORK WITHOUT AN RFL CM3R (EXAMPLE 2) ............... 56
7.7.2.1 STAND-ALONE DACS................................................................................................................................57

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 x [phone]
7.8 SEQUENCE OF EVENTS.......................................................................................................................................... 58
7.9 USING MACROS....................................................................................................................................................... 58
7.10 EMERGENCY EXIT................................................................................................................................................ 58
7.11 NETWORK MANAGEMENT SOFTWARE HELP................................................................................................ 59
7.11.1 INTRODUCTION............................................................................................................................................... 59
7.11.2 USING NETWORK MANAGEMENT SOFTWARE HELP ............................................................................ 59
7.11.3 NETWORK MANAGEMENT SOFTWARE HELP TOPICS........................................................................... 60
7.12 MODULES SUPPORTED BY NETWORK MANAGEMENT SOFTWARE........................................................ 61
7.13 PASSWORD PROTECTION................................................................................................................................... 62
7.13.1 ENTERING THE NETWORK MANAGEMENT SOFTWARE...................................................................... 62
7.13.2 CHANGING THE PASSWORD....................................................................................................................... 62
7.13.3 BYPASSING THE SIGN ON SCREEN............................................................................................................ 62
Section 8. TROUBLESHOOTING......................................................................................................................................... 1
8.1 INTRODUCTION......................................................................................................................................................... 1
8.2 GENERAL TROUBLESHOOTING ............................................................................................................................. 1
8.2.1 TROUBLE TYPES ................................................................................................................................................ 1
8.2.2 GENERAL TROUBLESHOOTING HINTS......................................................................................................... 2
8.2.3 T1/E1 CARRIER-LEVEL ERRORS ..................................................................................................................... 3
8.2.4 PAYLOAD (DS0) ERRORS ................................................................................................................................. 3
8.2.5 FUSE REPLACEMENT........................................................................................................................................ 4
8.2.6 HOW TO ARRANGE FOR SERVICING............................................................................................................. 5
Section 9. INDEX .................................................................................................................................................................... 1
Section 10. GLOSSARY.......................................................................................................................................................... 1
Section 11. APPLICATION NOTES....................................................................................................................................... 1
Section 12. 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 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xi [phone]
LIST OF ILLUSTRATIONS
Figure 2-1. DACS front panel...............................................................................................................................................2-1
Figure 2-2. Sample mapping of DACS in Cross-connect mode. ..........................................................................................2-3
Figure 2-3. Simplified diagram of DACS in ILS mode. .......................................................................................................2-4
Figure 2-4. DACS Cross-Connect and Line-Switch mode data paths. .................................................................................2-5
Figure 2-5. 8-node ring reversion example..........................................................................................................................2-8
Figure 2 6. DACS paths and port numbers .........................................................................................................................2-10
Figure 2-7. A typical DACS and its active DACS map, for T1 systems.............................................................................2-12
Figure 2-8. DACS fiber ring configuration before a failure (sample configuration)..........................................................2-14
Figure 2-9. DACS fiber ring configuration after a failure (sample configuration)............................................................2-15
Figure 3-1. Terminal multiplexer with DACS (sample configuration).................................................................................3-2
Figure 3-2. Point-to-point System with DACS (sample configuration)................................................................................3-3
Figure 3-3. Drop/insert multiplexer with DACS (sample configuration) .............................................................................3-4
Figure 3-4. Drop/Insert DACS in a linear system with primary and backup paths (sample configuration) .........................3-5
Figure 3-5. DACS ring configuration before a failure (sample configuration)....................................................................3-7
Figure 3-6. DACS ring configuration after a failure (sample configuration).......................................................................3-8
Figure 3-7. DACS in stand-alone (cross-connect) mode ......................................................................................................3-9
Figure 4-1. DACS Chassis, front view..................................................................................................................................4-2
Figure 4-2. DACS Display Module.......................................................................................................................................4-4
Figure 4-3. Jackfield/Relay Module.....................................................................................................................................4-5
Figure 4-4. Display and Jackfield Panel................................................................................................................................4-6
Figure 4-5. Motherboard, front and rear views.....................................................................................................................4-9
Figure 4-6. DACS Processor Module .................................................................................................................................4-11
Figure 4-7. DACS Framer Module .....................................................................................................................................4-12
Figure 4-8. DACS Redundant Module................................................................................................................................4-13
Figure 4-9. Typical DACS Power Supply module..............................................................................................................4-15
Figure 4-10. SAG module used in DACS...........................................................................................................................4-18
Figure 4-11. SAG module connectivity overview...............................................................................................................4-20
Figure 4-12. DACS Communications I/O module, rear panel view ...................................................................................4-21
Figure 4-13. DACS MA-260 and MA-262-Line I/Os, rear panel views ............................................................................4-22
Figure 4-14. DACS Coax Line I/O (E1) module, rear panel view......................................................................................4-23
Figure 4-15. Typical DACS Fiber I/O module, rear panel view.........................................................................................4-25
Figure 4-16. DACS, SAG I/O module, rear panel view......................................................................................................4-27
Figure 4-17. Typical Power Supply Alarm I/O module, rear panel view ...........................................................................4-28
Figure 5-1. DACS System Block Diagram..........................................................................................................................5-2
Figure 5-2. Processor Block Diagram..................................................................................................................................5-4
Figure 5-3. Block Diagram of Power Supply Section of Processor Module........................................................................5-5
Figure 5-4. Framer Block Diagram.......................................................................................................................................5-9
Figure 5-5. Line Interface Block Diagram.........................................................................................................................5-10
Figure 5-6. Redundancy Module Block Diagram..............................................................................................................5-12
Figure 5-7. Mapping Block Diagram..................................................................................................................................5-16
Figure 6-1. Power supply removal and installation...............................................................................................................6-3
Figure 6-2. DACS chassis mounting dimensions..................................................................................................................6-4
Figure 6-3. Typical Rear view, DACS chassis......................................................................................................................6-6
Figure 6-4. Terminal strip power connections for DACS chassis with single power supply modules.................................6-9
Figure 6-5. Terminal strip power connections for DACS chassis with redundant power supply modules.........................6-10
Figure 6-6. Label on front door for recording input voltage configuration .......................................................................6-13
Figure 6-7. Caution Label inside front door of the DACS.................................................................................................6-13
Figure 6-8. SAG Module and MA-255 SAG I/O...............................................................................................................6-20
Figure 6-9. MA-255 SAG I/O Connections........................................................................................................................6-21
Figure 6-10. SAG I/O, DB9 Pin Out...................................................................................................................................6-21

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xii [phone]
Figure 7 1. Typical desktop showing the RFL NMS version 10.2 Icon ................................................................................. 3
Figure 7-2. PC directly connected to a node using an RS-232 cable, or ethernet port............................................................ 5
Figure 7-3. PC connected to a node from a remote location................................................................................................... 6
Figure 7-4. PC connected to a stand alone DACS .................................................................................................................. 6
Figure 7-5. Construction of a typical RS-232 cable between the PC and an MA-210, MA-215 or OIA ............................... 7
Figure 7-6. PC at a remote location connected to 4 nodes, where each node is in a different network.................................. 8
Figure 7-7. PC at a remote location connected to 4 nodes, where all nodes are in the same network.................................... 9
Figure 7-8. Typical networks and communication paths ...................................................................................................... 10
Figure 7-9. Network Management Software Main window.................................................................................................. 11
Figure 7-10. Basic drawing of the network used in example one......................................................................................... 15
Figure 7-11. DACS Network Example (configured as a closed ring with three nodes) ....................................................... 16
Figure 7-12. Network Management Software Main window................................................................................................ 18
Figure 7-13. Edit Network Information window .................................................................................................................. 19
Figure 7-14. Read Network Setup Window.......................................................................................................................... 22
Figure 7-15. Auto-Configure Options Window.................................................................................................................... 23
Figure 7-16. Network View window .................................................................................................................................... 24
Figure 7-17. Display/Change Node window for node 1 ....................................................................................................... 25
Figure 7-18. View or Change a Card window for the CM3R............................................................................................... 26
Figure 7-19. DACS General Configurations window for node 1 of a T1 system................................................................. 27
Figure 7-20. Port 1 Configuration parameters window for a T1 system............................................................................... 32
Figure 7-21. Port 1 Configurations parameters window for an E1 system........................................................................... 33
Figure 7-22. DACS Map window for Node 1 of a T1 system .............................................................................................. 35
Figure 7-23. Typical FDL signal routing for map 0.............................................................................................................. 36
Figure 7-24. Map Select Criteria window for Map 1 of a T1 or E1 system.......................................................................... 37
Figure 7-25. DACS DS0 Map 0 window for a T1 system.................................................................................................... 40
Figure 7-26. DACS DS0 Map 0 window for an E1 system.................................................................................................. 41
Figure 7-27. Robbed Bit Signal Selects window for T1 systems only.................................................................................. 43
Figure 7-28. View or Change a Card window for the VF5A................................................................................................ 44
Figure 7-29. View or Change a Card window for the VF16B.............................................................................................. 45
Figure 7-30. Network View window after connecting lines to nodes................................................................................... 46
Figure 7-31. Typical Alarm Log report................................................................................................................................. 48
Figure 7-32. Page 1 of a typical Complete Network Information Report............................................................................. 49
Figure 7-33. Typical Connection View Report..................................................................................................................... 50
Figure 7-34. Page 1 of a typical DACS Map Report............................................................................................................. 51
Figure 7-35. Typical Difference Report................................................................................................................................52
Figure 7-36. Page 1 of a typical Event Log Report............................................................................................................... 53
Figure 7-37. Typical Network Diagram Report.................................................................................................................... 54
Figure 7-38. Stand-alone DACS network used in example .................................................................................................. 57
Figure 8-1. Basic troubleshooting categories.......................................................................................................................... 1

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xiii [phone]
LIST OF TABLES
Table 2-1. Comparison of cross-connect and line-switch modes of operation ....................................................................2-6
Table 2-2. Overview of 8-port DACS modes of operation.................................................................................................2-6
Table 2-3. DACS A, MAP 0 (T1 system)..........................................................................................................................2-16
Table 2-4. DACS A, MAP 1 (T1 system)..........................................................................................................................2-17
Table 2-5. DACS B, MAP 0 (T1 system) ..........................................................................................................................2-18
Table 2-6. DACS B, MAP 4 (T1 system) ..........................................................................................................................2-19
Table 2-7. DACS C, MAP 0 (T1 system) ..........................................................................................................................2-20
Table 2-8. DACS D, MAP 0 (T1 system)..........................................................................................................................2-21
Table 4-1. Display module and Jackfield/Relay modules, controls and indicators..............................................................4-7
Table 4-2. Processor module controls and indicators.........................................................................................................4-11
Table 4-3. Framer module controls and indicators..............................................................................................................4-12
Table 4-4. Redundant Module, controls and indicators ......................................................................................................4-14
Table 4-5. Power Supply Modules, General Information ..................................................................................................4-15
Table 4-6. DACS Power Supply Specifications.................................................................................................................4-16
Table 4-7. SAG module controls and indicators................................................................................................................4-19
Table 4-8. Characteristics of IMUX 2000 Optical Interface Adapters...............................................................................4-26
Table 4-9. Acceptable received fiber optic power levels ...................................................................................................4-26
Table 4-10. Power Supply Alarm I/O, General Information..............................................................................................4-29
Table 4-11. Power Supply Alarm I/O Application Information.........................................................................................4-29
Table 4-12. Determining power requirements for the DACS Chassis...............................................................................4-30
Table 7-1. List of modules used in the example that must be configured into the network.................................................. 15
Table 7-2. Modules supported by Network Management software............................................................................................... 61

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xiv [phone]
LIST OF EFFECTIVE PAGES
When revisions are made to the IMUX 2000 DACS Instruction Manual, the entire section where
revisions were made is replaced. For the edition of this manual dated April 18, 2007 the sections are
dated as follows:
Front Matter April 18, 2007
Section 1 May 2005
Section 2 September 27, 2002
Section 3 September 27, 2002
Section 4 September 18, 2006
Section 5 September 27, 2002
Section 6 September 18, 2006
Section 7 December 1, 2005
Section 8 September 27, 2002
Section 9 December 1, 2005
Section 10 September 27, 2002
Section 11 September 27, 2002
Section 12 September 27, 2002

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xv [phone]
REVISION RECORD
Rev Description Date Approval
4-30-02 New Release – IMUX 2000 8-Port T1/E1 Instruction Manual
with Redundant Capability 4-30-02 CS
6-25-02 Added Government Requirements to Section 0
Added MA-262 to Section 3 6-25-02 CS
9-27-02 Added Product Information sheet to Section 1. Moved Sections
1 through 11 up by one section number. Added new E1
information. Added E1 information to NMS Section 7.
9-27-02 CS
12-1-05 Added Non-Jackfield Relay info to section 4 as per ECO 2000-
391.
Revised Section 4 and Section 7 in accordance with CAR#
C2000-270 (See errata sheet MC 2000DACS-001)
Revised Section 7 in accordance with CAR# C2000-0397 (See
errata sheet MC 2000DACS-003)
12-1-05 TG
4-18-07 Revised Section 4 and 6 in accordance with CAR# C2000-0505 4-18-07 TG

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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blank
IMUX 2000 DACS8P RFL Electronics Inc.
April 18, 2007 xvi [phone]

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
Section 1. PRODUCT INFORMATION
(Please see next page)
IMUX 2000 DACS8P RFL Electronics Inc.
May, 2005 1-1 [phone]

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
This page intentionally left
blank
IMUX 2000 DACS8P RFL Electronics Inc.
May, 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.
1
RFL Electronics Inc.
May 2005 IMUX 2000 8-Port DACS
Management, protection and routing of critical
T1/E1 traffic
•Optimizes transmission efficiency
•Drastically reduces overall T1/E1 line costs
•Provides T1/E1 connectivity to several sites
•Ideal for edge access and data back haul
•Groom/Concentrate/Hub multiple T1/E1 links
•Consolidation of Enterprise network traffic
•Enables dual T1/E1 Ring interconnection
•Offers automatic re-routing capabilities
•Redundant DACS module and power supply
The IMUX 2000 8-Port T1/E DACS is designed for stand-alone
operation and/or to interface with the IMUX 2000 Multiplexer
to support various types of network topologies including “Star”,
“Hot-Standby” and “Rings.”
The IMUX 2000 8-Port T1/E1 DACS, provides full cross-con-
nect capability as well as a reliable level of system restora-
tion. The RFL DACS enables the termination of up to eight [8]
T1/E1 ports in a common platform while also providing full
DS0 Time Slot Interchange capability. Redundant DACS
modules are available for critical applications, which cannot
tolerate single point of failure network architectures.
Communications interface options for the DACS include built
IMUX 2000 8-Port T1/E1 DACS
Key Features and Benefits
in T1 CSU, or fiber optic interface adapters, using Code Mark
Inversion (CMI) encoding technology. In the event the applica-
tion is time sensitive in nature the RFL DACS can be config-
ured as an Intelligent Line Switch (ILS) in order to provide ultra
high speed path switching.
System restoration is accomplished through the use of alter-
nate DS0, Time Slot Interchanged maps. The alternate maps
are predetermined and pre-programmed 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 alternate map, upon detection of failure, is pro-
grammable down to 1 millisecond.
•Full Time Slot Interchange (TSI) capability
•1 ms High Speed Intelligent Line Switch
•Rugged design (SWC, EMI, RFI, Temp)
•Intuitive GUI with color coded DACS maps
•Optional SNMP interface compatibility
•Front access T1/E1 maintenance Jack-fields
•Up to 8 T1/E1 ports, fiber optic or electrical
•DACS map and Tri-color port status Displays
•Electrical to fiber optic DS1 migration

Because RFL™ and Hubbell® have a policy of continuous product improvement,
we reserve the right to change designs and specifications without notice.
2
RFL Electronics Inc.
May 2005 IMUX 2000 8-Port DACS
Electric Utilities (Investor Owned, Municipal, Cooperatives, Independent Power Producers)
•Inter-substation communications
•System protection control and monitoring
•Corporate Wide Area Networks
•Substation automation
•Remote station data backhaul
•SONET/ATM backbone access
Transportation (Traffic, Intelligent Transportation Systems, Airports, Rail/Transit)
•Advanced Transportation Management Systems (ATMS)
•Traffic operation center data concentration
•Wayside communications and signaling for metro/rail
•Airport enterprise solutions
Telco (RBOC, CLEC,ILEC, ISP)
•Voice, data, video transport
•DSO grooming
•DS1 concentration
•Fractional T1 to subscribers
•Public and private networks
Product Applications
Figure 1 - RFL DACS application DSO grooming of fractional T1.