RAD Data comm Vmux-2100 User Manual
Installation and Operation Manual
Vmux-2100
Voice Trunking Gateway
Vmux-2100
Voice Trunking Gateway
Installation and Operation Manual
Notice
This manual contains information that is proprietary to RAD Data Communications Ltd. ("RAD"). No
part of this publication may be reproduced in any form whatsoever without prior written approval by
RAD Data Communications.
Right, title and interest, all information, copyrights, patents, know-how, trade secrets and other
intellectual property or other proprietary rights relating to this manual and to the Vmux-2100 and any
software components contained therein are proprietary products of RAD protected under international
copyright law and shall be and remain solely with RAD.
Vmux-2100 is a registered trademark of RAD. No right, license, or interest to such trademark is granted
hereunder, and you agree that no such right, license, or interest shall be asserted by you with respect
to such trademark.
You shall not copy, reverse compile or reverse assemble all or any portion of the Manual or the Vmux-
2100. You are prohibited from, and shall not, directly or indirectly, develop, market, distribute,
license, or sell any product that supports substantially similar functionality as the Vmux-2100, based on
or derived in any way from the Vmux-2100. Your undertaking in this paragraph shall survive the
termination of this Agreement.
This Agreement is effective upon your opening of the Vmux-2100 package and shall continue until
terminated. RAD may terminate this Agreement upon the breach by you of any term hereof. Upon
such termination by RAD, you agree to return to RAD the Vmux-2100 and all copies and portions
thereof.
For further information contact RAD at the address below or contact your local distributor.
International Headquarters
RAD Data Communications Ltd.
24 Raoul Wallenberg St.
Tel Aviv 69719 Israel
Tel: 972-3-6458181
Fax: 972-3-6498250
E-mail: rad@rad.co.il
© 2002–2003 RAD Data Communications Ltd. Publication No. 164-200-01/03
U.S. Headquarters
RAD Data Communications Inc.
900 Corporate Drive
Mahwah, NJ 07430 USA
Tel: (201) 529-1100, Toll free: 1-800-444-7234
Fax: (201) 529-5777
E-mail: market@radusa.com
Limited Warranty
RAD warrants to DISTRIBUTOR that the hardware in the Vmux-2100 to be delivered hereunder shall
be free of defects in material and workmanship under normal use and service for a period of twelve
(12) months following the date of shipment to DISTRIBUTOR.
If, during the warranty period, any component part of the equipment becomes defective by reason of
material or workmanship, and DISTRIBUTOR immediately notifies RAD of such defect, RAD shall have
the option to choose the appropriate corrective action: a) supply a replacement part, or b) request
return of equipment to its plant for repair, or c) perform necessary repair at the equipment's location.
In the event that RAD requests the return of equipment, each party shall pay one-way shipping costs.
RAD shall be released from all obligations under its warranty in the event that the equipment has been
subjected to misuse, neglect, accident or improper installation, or if repairs or modifications were
made by persons other than RAD's own authorized service personnel, unless such repairs by others
were made with the written consent of RAD.
The above warranty is in lieu of all other warranties, expressed or implied. There are no warranties
which extend beyond the face hereof, including, but not limited to, warranties of merchantability and
fitness for a particular purpose, and in no event shall RAD be liable for consequential damages.
RAD shall not be liable to any person for any special or indirect damages, including, but not limited to,
lost profits from any cause whatsoever arising from or in any way connected with the manufacture,
sale, handling, repair, maintenance or use of the Vmux-2100, and in no event shall RAD's liability
exceed the purchase price of the Vmux-2100.
DISTRIBUTOR shall be responsible to its customers for any and all warranties which it makes relating
to Vmux-2100 and for ensuring that replacements and other adjustments required in connection with
the said warranties are satisfactory.
Software components in the Vmux-2100 are provided "as is" and without warranty of any kind. RAD
disclaims all warranties including the implied warranties of merchantability and fitness for a particular
purpose. RAD shall not be liable for any loss of use, interruption of business or indirect, special,
incidental or consequential damages of any kind. In spite of the above RAD shall do its best to provide
error-free software products and shall offer free Software updates during the warranty period under
this Agreement.
RAD's cumulative liability to you or any other party for any loss or damages resulting from any claims,
demands, or actions arising out of or relating to this Agreement and the Vmux-2100 shall not exceed the
sum paid to RAD for the purchase of the Vmux-2100. In no event shall RAD be liable for any indirect,
incidental, consequential, special, or exemplary damages or lost profits, even if RAD has been advised of
the possibility of such damages.
This Agreement shall be construed and governed in accordance with the laws of the State of Israel.
General Safety Instructions
The following instructions serve as a general guide for the safe installation and operation of
telecommunications products. Additional instructions, if applicable, are included inside the manual.
Safety Symbols
This symbol may appear on the equipment or in the text. It indicates
potential safety hazards regarding product operation or maintenance to
operator or service personnel.
Warning
Danger of electric shock! Avoid any contact with the marked surface while
the product is energized or connected to outdoor telecommunication lines.
.
Warning
Protective earth: the marked lug or terminal should be connected to the building
protective earth bus.
Some products may be equipped with a laser diode. In such cases, a label
with the laser class and other warnings as applicable will be attached near
the optical transmitter. The laser warning symbol may be also attached.
Please observe the following precautions:
• Before turning on the equipment, make sure that the fiber optic cable is
intact and is connected to the transmitter.
• Do not attempt to adjust the laser drive current.
• Do not use broken or unterminated fiber-optic cables/connectors or look
straight at the laser beam.
• The use of optical devices with the equipment will increase eye hazard.
• Use of controls, adjustments or performing procedures other than those
specified herein, may result in hazardous radiation exposure.
ATTENTION: The laser beam may be invisible!
Always observe standard safety precautions during installation, operation and maintenance of this
product. Only qualified and authorized service personnel should carry out adjustment, maintenance or
repairs to this product. No installation, adjustment, maintenance or repairs should be performed by
either the operator or the user.
Handling Energized Products
General Safety Practices
Do not touch or tamper with the power supply when the power cord is connected. Line voltages may
be present inside certain products even when the power switch (if installed) is in the OFF position or a
fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous,
energy hazards may still exist.
Before working on equipment connected to power lines or telecommunication lines, remove jewelry
or any other metallic object that may come into contact with energized parts.
Unless otherwise specified, all products are intended to be grounded during normal use. Grounding is
provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth lug
is provided on the product, it should be connected to the protective earth at all times, by a wire with a
diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthed racks
and cabinets.
Always make the ground connection first and disconnect it last. Do not connect telecommunication
cables to ungrounded equipment. Make sure that all other cables are disconnected before
disconnecting the ground.
Connection of AC Mains
Make sure that the electrical installation complies with local codes.
Always connect the AC plug to a wall socket with a protective ground.
The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.
Always connect the power cord first to the equipment and then to the wall socket. If a power switch is
provided in the equipment, set it to the OFF position. If the power cord cannot be readily
disconnected in case of emergency, make sure that a readily accessible circuit breaker or emergency
switch is installed in the building installation.
Connection of DC Mains
Unless otherwise specified in the manual, the DC input to the equipment is floating in reference to the
ground. Any single pole can be externally grounded.
Due to the high current capability of DC mains systems, care should be taken when connecting the DC
supply to avoid short-circuits and fire hazards.
DC units should be installed in a restricted access area, i.e. an area where access is authorized only to
qualified service and maintenance personnel.
Make sure that the DC supply is electrically isolated from any AC source and that the installation
complies with the local codes.
The maximum permissible current capability of the branch distribution circuit that supplies power to
the product is 16A. The circuit breaker in the building installation should have high breaking capacity
and must operate at short-circuit current exceeding 35A.
Before connecting the DC supply wires, ensure that power is removed form the DC circuit. Locate the
circuit breaker of the panel board that services the equipment and switch it to the OFF position. When
connecting the DC supply wires, first connect the ground wire to the corresponding terminal, then the
positive pole and last the negative pole. Switch the circuit breaker back to the ON position.
A readily accessible disconnect device that is suitably rated and approved should be incorporated in
the building installation.
Connection of Data and Telecommunications Cables
Data and telecommunication interfaces are classified according to their safety status.
The following table lists the status of several standard interfaces. If the status of a given port differs from
the standard one, a notice will be given in the manual.
Ports Safety Status
V.11, V.28, V.35, V.36, RS-530,
X.21, 10 BaseT, 100 BaseT,
Unbalanced E1, E2, E3, STM, DS-2,
DS-3, S-Interface ISDN, Analog voice
E&M
xDSL (without feeding voltage),
Balanced E1, T1, Sub E1/T1
FXS (Foreign Exchange Subscriber) TNV-2 Telecommunication Network Voltage-2:
FXO (Foreign Exchange Office), xDSL
(with feeding voltage), U-Interface
ISDN
SELV Safety Extra Low Voltage:
Ports which do not present a safety hazard. Usually
up to 30 VAC or 60 VDC.
TNV-1 Telecommunication Network Voltage-1:
Ports whose normal operating voltage is within the
limits of SELV, on which overvoltages from
telecommunications networks are possible.
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are not possible. These
ports are not permitted to be directly connected to
external telephone and data lines.
TNV-3 Telecommunication Network Voltage-3:
Ports whose normal operating voltage exceeds the
limits of SELV (usually up to 120 VDC or telephone
ringing voltages), on which overvoltages from
telecommunication networks are possible.
Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a
qualified safety engineer.
Always make sure that the equipment is grounded before connecting telecommunication cables. Do
not disconnect the ground connection before disconnecting all telecommunications cables.
Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables.
Extra caution should be exercised during thunderstorms.
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The
earthing and bonding of the ground connections should comply with the local codes.
The telecommunication wiring in the building may be damaged or present a fire hazard in case of
contact between exposed external wires and the AC power lines. In order to reduce the risk, there are
restrictions on the diameter of wires in the telecom cables, between the equipment and the mating
connectors.
Caution
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cords.
Attention
Pour réduire les risques s’incendie, utiliser seulement des conducteurs de
télécommunications 26 AWG ou de section supérieure.
Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such
cases, a notice will be given in the installation instructions.
Do not attempt to tamper with any carrier-provided equipment or connection hardware.
Australian Safety Requirements
WARNING: THIS EQUIPMENT MUST ONLY BE INSTALLED AND MAINTAINED BY SERVICE
PERSONNEL
In order to comply with Australian safety requirements for telecommunication equipment, observe the
following safety instructions:
1. VMUX-M/M-ETH-E1 module:
Remove JP7 and JP16 from the module circuit board.
2. VMUX-M/VC-E1/4 module:
Connection of this module’s ports to public telecommunication networks must be via a Line
Isolation Unit with a telecommunication compliance label.
Electromagnetic Compatibility (EMC)
The equipment is designed and approved to comply with the electromagnetic regulations of major
regulatory bodies. The following instructions may enhance the performance of the equipment and will
provide better protection against excessive emission and better immunity against disturbances.
A good earth connection is essential. When installing the equipment in a rack, make sure to remove all
traces of paint from the mounting points. Use suitable lock-washers and torque. If an external
grounding lug is provided, connect it to the earth bus using braided wire as short as possible.
The equipment is designed to comply with EMC requirements when connecting it with unshielded
twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for
high-rate data. In some cases, when unshielded wires are used, ferrite cores should be installed on
certain cables. In such cases, special instructions are provided in the manual.
Disconnect all wires which are not in permanent use, such as cables used for one-time configuration.
The compliance of the equipment with the regulations for conducted emission on the data lines is
dependent on the cable quality. The emission is tested for UTP with 80 dB longitudinal conversion loss
(LCL).
Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary
protection against surges on the data lines. Primary protectors should be provided in the building
installation.
The equipment is designed to provide adequate protection against electro-static discharge (ESD).
However, it is good working practice to use caution when connecting cables terminated with plastic
connectors (without a grounded metal hood, such as flat cables) to sensitive data lines. Before
connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist
strap.
FCC-15 User Information
This equipment has been tested and found to comply with the limits of the Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the Installation and Operation manual, may cause harmful interference to the radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
Canadian Emission Requirements
This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing
Equipment Regulation.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
Warning per EN 55022 (CISPR-22) and AN/N45 3548
Warning
Avertissement
Achtung
This is a class A product. In a domestic environment, this product may cause
radio interference, in which case the user will be required to take adequate
measures.
Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet
appareil peut provoquer des brouillages radioélectriques. Dans ces cas, il peut
être demandé à l’utilisateur de prendre les mesures appropriées.
Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können
bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der
Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist.
Declaration of Conformity
Manufacturer’s Name: RAD Data Communications Ltd.
Manufacturer’s Address: 24 Raoul Wallenberg St.
Tel Aviv 69719
Israel
Declares that the product:
Product Name: VMUX-2100
Conforms to the following standard(s) or other normative document(s):
EMC: EN 55022:1994 Limits and methods of measurement of radio disturbance
characteristics of information technology equipment.
EN 50024:1998 Information technology equipment – Immunity characteristics
– Limits and methods of measurement.
Safety: EN 60950:2000 Safety of information technology equipment.
Supplementary Information:
The product herewith complies with the requirements of the EMC Directive 89/336/EEC,
the Low Voltage Directive 73/23/EEC and the R&TTE Directive 99/5/EC. The product was tested in a
typical configuration.
Tel Aviv, 9
th
May, 2002
Haim Karshen
VP Quality
European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30,
85521 Ottobrunn-Riemerling, Germany
Contents
Chapter 1. Introduction
1.1 Overview .......................................................................................................... 1-1
Versions...................................................................................................................1-1
Voice Module ..........................................................................................................................1-1
Main Link Module....................................................................................................................1-1
Applications.............................................................................................................1-2
Features...................................................................................................................1-3
E1 Main Link............................................................................................................................1-3
T1 Main Link............................................................................................................................1-3
Ethernet Main Link...................................................................................................................1-3
Voice Modules.........................................................................................................................1-3
TDMoIP Multiplexing...............................................................................................................1-3
Bundling ..................................................................................................................................1-4
Timing .....................................................................................................................................1-4
Diagnostics...............................................................................................................................1-4
Statistics Collection ..................................................................................................................1-4
Management............................................................................................................................1-4
Power ......................................................................................................................................1-5
1.2 Physical Description .......................................................................................... 1-5
1.3 Functional Description ...................................................................................... 1-6
Voice Modules.........................................................................................................1-6
Signaling ..................................................................................................................................1-6
Compression............................................................................................................................1-7
Voice Activity Detection...........................................................................................................1-7
TDMoIP Multiplexing...............................................................................................................1-7
Ethernet Frame ........................................................................................................................1-8
VLAN Support..........................................................................................................................1-9
UDP Support ...........................................................................................................................1-9
Ethernet Main Link ..................................................................................................1-9
E1/T1 Main Link ......................................................................................................1-9
Bandwidth Utilization ............................................................................................1-10
Calculating Approximate Bandwidth Utilization......................................................................1-10
1.4 Technical Specifications .................................................................................. 1-11
Chapter 2. Installation and Setup
2.1 Site Requirements and Prerequisites.................................................................. 2-1
2.2 Package Contents.............................................................................................. 2-2
2.3 Installation and Setup........................................................................................ 2-2
Setting the Main Link E1 Internal Jumpers ................................................................2-2
Connecting the Interfaces ........................................................................................2-3
Connecting the E1/T1 Voice Ports ............................................................................................2-3
Connecting the Main Link ........................................................................................................2-4
Connecting the ASCII Terminal ................................................................................................2-4
Connecting the Power .............................................................................................2-5
Connecting AC Power..............................................................................................................2-5
Connecting DC Power .............................................................................................................2-5
Chapter 3. Operation
3.1 Front Panel Indicators ....................................................................................... 3-1
3.2 Operating Vmux-2100 ...................................................................................... 3-2
Turning On Vmux-2100...........................................................................................3-2
Normal Indications ..................................................................................................3-2
Vmux-2100 Installation and Operation Manual i
Table of Contents
Turning Off Vmux-2100...........................................................................................3-2
3.3 Default Settings ................................................................................................. 3-3
Chapter 4. Management from a Terminal
4.1 Preparing for the Control Session ......................................................................4-1
Control Port Interface Characteristics........................................................................4-1
Preparing the Terminal.............................................................................................4-1
Data Terminal Ready (DTR) .....................................................................................................4-1
Initiating a Control Session .......................................................................................................4-2
Levels of Security.....................................................................................................4-2
Default Security Configuration .................................................................................................4-2
4.2 Navigating the Management Menus ..................................................................4-3
Selecting Parameters................................................................................................4-3
Saving and Aborting Selected Values ........................................................................4-3
4.3 Starting the Control Session............................................................................... 4-4
4.4 Displaying the Vmux-2100 Inventory ................................................................4-5
4.5 Configuring the Vmux-2100 System .................................................................. 4-5
Configuring Ethernet Management Connection ........................................................4-6
Configuring the Host IP ............................................................................................................4-6
Defining the Manager List ........................................................................................................4-8
Managing the User Database ...................................................................................4-8
Adding a New User to the Database.........................................................................................4-8
Deleting an Existing User from the Database ..........................................................................4-10
Changing the User Details ......................................................................................................4-10
Displaying the User List..........................................................................................................4-11
Controlling Telnet Access .......................................................................................4-11
Configuring the Control Port ..................................................................................4-12
Configuring the Data Rate ......................................................................................................4-12
Configuring the Timeout ........................................................................................................4-12
Enabling/Disabling Dial-in Modem Access ..............................................................4-12
Configuring Signaling Information...........................................................................4-13
Configuring Signaling Profiles .................................................................................................4-13
Configuring Keep-Alive Suppression Rate ...............................................................................4-15
Assigning a Name to Vmux-2100 ...........................................................................4-16
Setting Date and Time ...........................................................................................4-16
4.6 Entering Main Link and Voice Modules into the Database ............................... 4-17
4.7 Configuring Main Link and Voice E1/T1 Ports.................................................. 4-18
Configuring the Main Link......................................................................................4-19
Configuring the Ethernet Port .................................................................................................4-19
Configuring the E1 Main Link Port..........................................................................................4-20
Configuring the T1 Main Link Port..........................................................................................4-22
Configuring E1/T1 Groups and Bundles..................................................................4-24
Configuring a Group ..............................................................................................................4-24
Configuring Bundles...............................................................................................................4-25
Configuring External E1/T1 Ports ............................................................................................4-29
4.8 Restoring Default Settings................................................................................ 4-32
4.9 Resetting Vmux-2100...................................................................................... 4-32
Chapter 5. Configuring Vmux-2100 for a Typical Application
5.1 Application Requirements ................................................................................. 5-1
5.2 Outline of Configuration Procedure .................................................................. 5-2
5.3 Configuring Vmux-2100 for Operation with CAS Signaling ................................ 5-2
Configuring System Parameters ................................................................................5-2
Configuring E1 Main Link Parameters.......................................................................5-3
ii Vmux-2100 Installation and Operation Manual
Table of Contents
Configuring Voice Card Parameters..........................................................................5-3
Transferring Database to the Remote Vmux-2100.....................................................5-5
Completing Remote Vmux-2100 Configuration........................................................5-5
5.4 Configuring Vmux-2100 for Operation with CCS Signaling ................................ 5-6
Chapter 6. Diagnostics
6.1 Tone Injection................................................................................................... 6-1
6.2 Loopback Tests .................................................................................................6-3
Local Loopback .......................................................................................................6-3
Remote Loopback....................................................................................................6-4
6.3 Pinging Remote Devices.................................................................................... 6-4
6.4 Displaying the Active Tests ................................................................................ 6-5
Chapter 7. Monitoring and Statistics Collection
7.1 Alarms............................................................................................................... 7-1
Alarm Buffer ............................................................................................................7-1
Working with the Temporary Alarm Buffer ...............................................................7-1
Working with Permanent Buffer...............................................................................7-3
7.2 Sanity Checks.................................................................................................... 7-5
Displaying the Sanity Errors and Warnings................................................................7-5
Sanity Error and Warning List ...................................................................................7-6
7.3 Collecting Statistics............................................................................................ 7-7
Displaying Statistics on the Main Link Ports ..............................................................7-7
Collecting the Main Link Ethernet Statistics...............................................................................7-7
Collecting the Main Link HDLC Statistics................................................................................7-10
Calculating the Main Card CPU Utilization.............................................................................7-12
Displaying Statistics on the E1/T1 Groups ...............................................................7-12
Displaying E1/T1 Group Ethernet Statistics..............................................................................7-13
Displaying E1/T1 Group HDLC Statistics.................................................................................7-15
Displaying the E1/T1 Group Memory Statistics .......................................................................7-17
Displaying Bundle Statistics ....................................................................................................7-17
Displaying Timeslot Voice Statistics ........................................................................................7-19
Displaying the Voice Signaling Statistics ..................................................................................7-21
Calculating the E1/T1 Group CPU Utilization Statistics ...........................................................7-22
Appendix A. Interface Connector Specifications
A.1 E1/T1 Ports........................................................................................................A-1
A.2 Ethernet Interface Connector ............................................................................A-1
A.3 CONTROL Connector.......................................................................................A-2
A.4 CBL-VMUX-MM-MODEM Cross Cable .............................................................A-2
Appendix B. Boot Manager and Software Downloading
B.1 Introduction ......................................................................................................B-1
B.2 Booting Vmux-2100.......................................................................................... B-1
Boot Sequence ........................................................................................................B-1
Accessing the File System.........................................................................................B-2
B.3 Downloading the Application and Configuration Software................................. B-3
Downloading Application Files via XMODEM...........................................................B-3
Downloading Application Files via TFTP...................................................................B-4
Uploading/Downloading Configuration Files via TFTP...............................................B-4
Appendix C. Configuration Menus
Vmux-2100 Installation and Operation Manual iii
Table of Contents
List of Figures
1-1. Transmitting Compressed Voice and Signaling over IP Network ................................. 1-2
1-2. Transmitting 480/384 Voice Channels over a Single E1/T1 Link (16:1 Compression) .. 1-2
1-3. Transmitting Compressed Voice in Point-to-Multipoint Application ........................... 1-2
1-4. Vmux-2100, 3-D View .............................................................................................. 1-5
1-5. Vmux-2100 Block Diagram .......................................................................................1-6
1-6. TDMoIP Frame Structure........................................................................................... 1-7
1-7. Ethernet Frame Structure........................................................................................... 1-8
1-8. VLAN Tag Format...................................................................................................... 1-9
2-1. E1 Main Link Jumper Locations ................................................................................. 2-3
2-2. Vmux-2100 Rear Panel ............................................................................................. 2-3
3-1. Vmux-2100, Front Panel ........................................................................................... 3-1
3-2. Vmux-2100, Rear Panel ............................................................................................ 3-1
4-1. Password Request Screen .......................................................................................... 4-4
4-2. Main Menu ............................................................................................................... 4-4
4-3. Vmux-2100 Inventory ............................................................................................... 4-5
4-4. Configuration Menu ..................................................................................................4-6
4-5. System Menu ............................................................................................................ 4-6
4-6. Management Menu ................................................................................................... 4-7
4-7. Host IP Menu ............................................................................................................ 4-7
4-8. Manager List Menu.................................................................................................... 4-8
4-9. User Administration Menu......................................................................................... 4-9
4-10. Add New User Menu .............................................................................................. 4-9
4-11. Delete User Menu................................................................................................. 4-10
4-12. Change User Details Menu.................................................................................... 4-10
4-13. Show All Users Screen........................................................................................... 4-11
4-14. Control Port Menu ................................................................................................ 4-12
4-15. Signaling Configuration Menu................................................................................ 4-14
4-16. Signaling Profile Configuration Menu..................................................................... 4-14
4-17. Signaling Table Configuration Menu ...................................................................... 4-14
4-18. SS7 Keep-Alive Suppression Rate Menu................................................................. 4-16
4-19. Date & Time Update Menu................................................................................... 4-17
4-20. Hub Menu ............................................................................................................4-17
4-21. Card Menu............................................................................................................ 4-19
4-22. Main Board Menu ................................................................................................. 4-19
4-23. Lan Parameters Menu............................................................................................ 4-20
4-24. E1 Parameters Menu .............................................................................................4-20
4-25. Main Link 1/2 Menu for E1 Port Module ...............................................................4-21
4-26. Time Slot Table (for E1 Link).................................................................................. 4-22
4-27. Main Link 1/2 Menu for T1 Port Module ............................................................... 4-23
4-28. Time Slot Table (for T1 Link) ................................................................................. 4-24
4-29. Slot Menu ............................................................................................................. 4-25
4-30. Group Menu ......................................................................................................... 4-25
4-31. Bundles Parameters Menu..................................................................................... 4-25
4-32. Bundle Configuration Menu ..................................................................................4-26
iv Vmux-2100 Installation and Operation Manual
Table of Contents
4-33. Edit Bundle Menu ................................................................................................. 4-26
4-34. Connectivity Parameters Menu.............................................................................. 4-27
4-35. Voice Parameters Menu ........................................................................................ 4-28
4-36. External Menu....................................................................................................... 4-30
4-37. Distribution Of Framer Time Slots Menu ............................................................... 4-30
4-38. Time Slot Configuration Menu............................................................................... 4-30
4-39. Display Time Slots Screen...................................................................................... 4-31
4-40. Reset Card Menu .................................................................................................. 4-32
5-1. Typical TDM Application........................................................................................... 5-1
5-2. External E1 Bundle and Timeslot Configuration ......................................................... 5-5
6-1. Local Tone Injection.................................................................................................. 6-1
6-2. Diagnostics Menu...................................................................................................... 6-2
6-3. Inject Tone Menu...................................................................................................... 6-2
6-4. Local Loopback ......................................................................................................... 6-3
6-5. Local Loop Test Menu ............................................................................................... 6-3
6-6. Remote Loopback ..................................................................................................... 6-4
6-7. Ping Menu................................................................................................................. 6-5
7-1. Status Menu .............................................................................................................. 7-2
7-2. Display Menu............................................................................................................ 7-2
7-3. Temporary Buffer (Display All Alarms Screen) ............................................................ 7-2
7-4. Permanent Buffer (Alarm Status Screen)..................................................................... 7-3
7-5. Display Sanity Menu.................................................................................................. 7-5
7-6. Statistics Menu ..........................................................................................................7-7
7-7. Main Module Statistics Menu .................................................................................... 7-8
7-8. Main Link Ethernet Statistics Screen........................................................................... 7-8
7-9. Main Link HDLC Statistics Screen............................................................................ 7-10
7-10. Main Card CPU Utilization Statistics ...................................................................... 7-12
7-11. Cards Statistics Menu............................................................................................. 7-12
7-12. E1/T1 Group Ethernet Statistics Menu.................................................................... 7-13
7-13. Mode Menu .......................................................................................................... 7-13
7-14. E1/T1 Group Ethernet Statistics Screen .................................................................. 7-14
7-15. E1/T1 Group HDLC Statistics Screen .....................................................................7-16
7-16. E1/T1 Group Memory Statistics Screen .................................................................. 7-17
7-17. Bundle Statistics .................................................................................................... 7-18
7-18. Timeslot Voice Statistics Screen ............................................................................. 7-20
7-19. Voice Rx Signaling ................................................................................................. 7-21
7-20. Voice Tx Signaling ................................................................................................. 7-21
7-21. E1/T1 Group CPU Utilization Statistics................................................................... 7-22
A-1. RJ-45 Connector Pin Location ................................................................................... A-1
A-2. CBL-VMUX-MM-MODEM Cross Cable ..................................................................... A-2
B-1. File System Menu...................................................................................................... B-2
C-1. Inventory and Configuration Menus ..........................................................................C-1
C-2. Statistics and Diagnostics Menus ...............................................................................C-2
Vmux-2100 Installation and Operation Manual v
Table of Contents
List of Tables
1-1. Ethernet Frame Fields ................................................................................................ 1-8
1-2. UDP Source Port as Destination Voice Port ............................................................... 1-9
2-1. E1 Main Link Jumper Settings .................................................................................... 2-3
3-1. Vmux-2100 LEDs ......................................................................................................3-1
3-2. Vmux-2100 Indicator Status ......................................................................................3-2
3-3. Vmux-2100 Default Settings ...................................................................................... 3-3
4-1. Signaling Bits Configuration .....................................................................................4-15
7-1. Vmux-2100 Alarms.................................................................................................... 7-3
7-2. Sanity Errors and Warnings ........................................................................................ 7-6
7-3. Main Link Ethernet Statistics Values ........................................................................... 7-8
7-4. Main Link HDLC Statistics Values ............................................................................ 7-11
7-5. E1/T1 Group Ethernet Statistics Values..................................................................... 7-15
7-6. E1/T1 Group HDLC Statistics Values........................................................................ 7-16
7-7. E1/T1 Group Bundle Statistics Values....................................................................... 7-18
7-8. Timeslot Voice Statistics Values................................................................................ 7-20
vi Vmux-2100 Installation and Operation Manual
Chapter 1 Introduction
1.1 Overview
Vmux-2100 is a modular voice trunking gateway that enables up to 16 E1 or T1
circuits to be extended over a single E1, T1 or IP link. Vmux-2100 implements
G.723.1, G.729 A, G.711 compression and TDMoIP multiplexing algorithms to
send up to 480/384 voice channels over a single E1/T1 or IP link with transparent
CAS and CCS support. Vmux-2100 utilizes voice activity detection, silence
suppression, echo cancellation and other techniques to improve voice quality. The
gateway detects, generates and relays DTMF/MFR2/MFC signaling. In addition,
Vmux-2100 supports fax and data modem relay.
Versions
Note
Vmux-2100 can be managed locally via an ASCII terminal or remotely via Telnet
or RADview (RAD’s SNMP-based network management application).
Vmux-2100 includes voice and main link modules.
Voice Module
Voice module includes two or four balanced E1/T1 ports.
Main Link Module
A main link module supports the following interface combinations:
• Two E1 ports (balanced) with a UTP Ethernet port
• Two T1 ports (balanced) with a UTP Ethernet port
• A single Ethernet port.
Vmux-2100 supports unbalanced E1 interface by using an external RJ-45-to-BNC
interface adapter, CBL-RJ45/2BNC.
Overview 1-1
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
Applications
Figure 1-1 shows a Vmux-2100 application, where the gateway transmits
compressed voice over an IP network, including transparent transmission of CCS
and CAS signaling.
E1/T1 Trunks
Using CCS
10/100BaseT 10/100BaseT
E1/T1 Trunks
Using CCS
ISDN, SS7
PBX
E1/T1 Trunks
Using CAS
ISDN, SS7
PBX
Vmux-2100 Vmux-2100
IP Network
E1/T1 Trunks
Using CAS
10/100BaseT 10/100BaseT
Vmux-2100 Vmux-2100
Figure 1-1. Transmitting Compressed Voice and Signaling over IP Network
Figure 1-2 illustrates a Vmux-2100 implementing 16:1 TDMoIP compression to
transmit 480/384 voice channels over a single E1/T1 TDM link.
16 x E1/T1
Trunks
E1/T1 E1/T1
PBX PBX
Vmux-2100 Vmux-2100
TDM
Network
16 x E1/T1
Trunks
Figure 1-2. Transmitting 480/384 Voice Channels over a Single E1/T1 Link
(16:1 Compression)
Figure 1-3 shows a central Vmux-2100 operating opposite three remote
Vmux-2100 units in a point-to-multipoint application.
PBX
PBX
Central Site
E1/T1s
PSTN
Figure 1-3. Transmitting Compressed Voice in Point-to-Multipoint Application
1-2 Overview
10/100BaseT
Vmux-2100
IP Network
Site A
10/100BaseT
Site B
10/100BaseT
Site C
10/100BaseT
Vmux-2100
Vmux-2100
Vmux-2100
E1/T1s
E1/T1s
E1/T1s
PSTN
PSTN
PSTN
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
Features
E1 Main Link
Balanced redundant E1 main links ports use HDB3 coding and comply with
G.703, G.704, G.706, G.732 and G.823 standards. The E1 framers support
pass-through, G.732S and G.732N framing with or without CRC-4. Integral
LTU/DSU can be enabled for line protection and long haul options. Unbalanced
E1 connection is achieved via an external interface adapter.
T1 Main Link
Balanced redundant T1 main link ports use AMI coding, B8ZS zero suppression,
and comply with ANSI T1.403, AT&T TR-62411 and ITU-T G.703 standards. The
T1 framers support pass-through, SF, ESF. Integral DSU/CSU can be enabled for
line protection and long haul options.
Ethernet Main Link
Vmux-2100 has a half/full duplex, 10/100BaseT Ethernet port with autonegotiation
support. If autonegotiation is disabled, Vmux-2100 can be configured to any of the
following:
• 10BaseT – half or full duplex
• 100BaseT – half or full duplex.
The main link Ethernet port supports direct and indirect connection to the IP
networks.
Voice Modules
Vmux-2100 voice modules control E1/T1 frames, use G.723.1 (6.4 or 5.3 kbps),
G.729 A (8 kbps) and G.711 compression algorithms, and handle CAS/CCS
signaling transparently. Every group of two E1s or T1s is assigned a separate IP
address.
Voice Activity Detection mechanism allows optimizing bandwidth utilization, as
Vmux-2100 generates traffic only when voice activity is detected. Vmux-2100 uses
the G.723.1 A and G.729 B techniques for silence suppression and the G.168
standard for echo cancellation (up to 16 ms per channel). Vmux-2100 detects,
generates and relays DTMF/MFR2/MFC signals. In addition, Vmux-2100 supports
Group III fax relay (4.8, 9.6, 14.4 kbps) and transmits voice-band modem data.
Voice modules are hot-swappable.
TDMoIP Multiplexing
Vmux-2100 encapsulates the payload bytes in a UDP frame that is transferred over
IP and over Ethernet.
The number of TDM bytes in a multiplexed frame and packetizing interval are
user-configurable.
A destination IP address can be configured for each bundle (see Bundling, below).
Overview 1-3
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
Bundling
Bundle is a logical internal port of Vmux-2100, containing up to 60 timeslots. Each
E1/T1 group handles up to five bundles. A bundle is routed to a defined remote IP
address (remote group address). Each timeslot can be included in any bundle
belonging to its E1/T1 group. At the remote site, it can be connected to any
timeslot within a destination bundle.
Bundle QoS support:
• Labeling IP level priority (ToS).
• VLAN tagging and priority labeling according to IEEE 802.1 p&q.
The user can configure the ToS (Type of Service) of the outgoing IP packets. This
allows an en-route layer 3 router or switch, which supports ToS, to give higher
priority to Vmux-2100 traffic for delay-sensitive and secure applications.
Vmux-2100 allows you to configure the whole ToS byte field, since different
vendors may use different bits to tag packets for traffic prioritization. This also
enables you to work according to various RFC definitions (for example RFC 2474,
RFC 791).
Timing
Available timing modes are:
• Loopback – The E1 or T1 transmit clock is derived from the E1/T1 receive
clock.
• Internal – Vmux-2100 features a separate internal oscillator for each voice
card. When a voice module is configured to operate in internal clock, transmit
(Tx) and receive (Rx) trunks use the clock supplied by its internal oscillator.
Diagnostics
Vmux-2100 supports local (internal) and remote (external) loopback activation on
E1/T1 links. The user can also perform tone injection towards the local PBX. In
addition, a ping utility is included to confirm IP connectivity to the remote units.
Statistics Collection
Vmux-2100 provides extensive statistics collection capabilities which include:
Ethernet (as per RFC 1643) and HDLC statistics, voice, signaling, bundles, CPU
and memory utilization.
Management
Vmux-2100 can be managed via a local terminal, Telnet or RADview, RAD’s
network management system. Vmux-2100 has a DB-9 female port for the direct
terminal connection. Alternatively, a supervisory terminal can be connected via a
modem link.
1-4 Overview
Software upload and download and configuration can be performed via the local
terminal, TFTP or via RADview. Remote units are managed via Telnet over an
inband management link running on an E1/T1 link.
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
Vmux-2100 supports a four-level security and user-authentication system:
• Administrator – Allowed to configure all the parameters of Vmux-2100.
• Operator – Allowed to perform all operations in the system except for user
administration (adding/deleting users, changing user definitions).
• Technician – Allowed to test Vmux-2100 and monitor its operation (for
example, monitoring alarms).
• Monitor – Allowed to monitor the Vmux-2100 operation.
When Vmux-2100 is managed over Telnet, up to five simultaneous management
sessions are allowed. Access to the Vmux-2100 software can be limited to the
ASCII terminal and RADview management by disabling the Telnet access.
Power
Vmux-2100 can be ordered with dual redundant hot-swappable power supplies,
supporting load sharing.
• AC: 100 to 240 VAC
• DC: 30 to 70 VDC (48 VDC, nominal).
1.2 Physical Description
Vmux-2100 is a 1U high, easy-to-install standalone device. Figure 1-4 illustrates a
3-D view of the unit.
Figure 1-4. Vmux-2100, 3-D View
The front panel includes LEDs which indicate power supply, alarm and test
diagnostic status. The front panel indicators are described in Chapter 3.
The rear panel includes E1/T1 voice ports, DB-9 control port, Ethernet and E1/T1
main link connectors. These are described in Chapter 2.
Physical Description 1-5
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
1.3 Functional Description
Figure 1-5 illustrates the block diagram of Vmux-2100.
Main Module
10/100BaseT Main Link
Ethernet
Control Port Host
E1/T1 Main Link
Switch
Figure 1-5. Vmux-2100 Block Diagram
Voice Module
Group 1
Group 2
Voice Module
Group 1
Group 2
Voice Module
Group 1
Group 2
Voice Module
Group 1
Group 2
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
E1/T1
Voice Modules
Voice modules include two or four E1/T1 ports which receive E1/T1 trunks from
PBXs. Every two E1 and T1 ports are referred to as a group, which receives a
separate IP address.
Signaling
Signaling information is processed according to signaling mode: CAS for E1,
Robbed Bit MF for T1, or CCS for E1 and T1.
• CAS/Robbed Bit MF – The signaling data is processed by a separate DSP by
extracting the ABCD bits and reporting any change in their status to the host.
The reporting format is similar to E1, T1 ESF and T1 SF. In addition, the
signaling DSP employs a refresh mechanism to update the host with the most
recent status of the ABCD bits. The ABCD bits can be manipulated by using
translation rules, which are defined by means of signaling profiles.
A profile enables the user to select the translation of each individual signal bit.
The available selections are A, B, C, D (value copied from the corresponding
incoming bit), NOT A, NOT B, NOT C, NOT D (inverted value of
corresponding incoming bit), 0 (always 0), and 1 (always 1).
1-6 Functional Description
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
In addition to the translation of individual bits, the signaling profiles can also
be used to define the signaling bit patterns that indicate the idle and OOS
states.
• CCS – The signaling information is transferred transparently to the host, which
encapsulates the HDLC frame with the proper IP header and sends it to the
main link. The following protocols are supported: ISDN, QSIG and SS7. HDLC
data can be extracted from any set of timeslots and sent to a single destination.
When operating with SS7 signaling, it is possible to control amount of the
keep-alive bits transferred over the signaling links.
Compression
The DSPs handle the voice traffic by compressing it according to G.723.1 (6.4 or
5.3 kbps) and G.729 A (8 kbps), or digitizes it according to the G.711 requirements
(A-law and µ-law). Compression methods are user-selectable per bundle.
Voice Activity Detection
Voice Activity Detection (VAD) uses digital signal processing techniques to
distinguish between silence and speech on a voice connection. VAD reduces the
bandwidth requirements of a voice connection by generating traffic only during
periods of active voice conversation. With Comfort Noise Generation supported at
the remote site, VAD significantly reduces bandwidth consumption without
degrading voice quality. VAD achieves additional bandwidth savings when
combined with voice compression techniques.
TDMoIP Multiplexing
Compressed voice payload is multiplexed by using the TDMoIP technique. The
multiplexing is performed by the Vmux-2100 software. The DSPs send a
continuous stream of voice packets; which are put together into a TDMoIP frame
by adding AAL2 headers and a TDMoIP header. Figure 1-6 illustrates the TDMoIP
frame structure.
TDMoIP
Header
AAL2
Header
Voi ce
Packet
Figure 1-6. TDMoIP Frame Structure
The size of TDMoIP frame is determined by the following parameters:
• Packetizing interval – Defining time interval allocated for the TDMoIP frame
aggregation (10 to 90 msec).
• Maximum bytes per multiplexed frame – Specifying the maximum size of each
frame (100 to 1461 bytes).
AAL2
Header
Voi ce
Packet
Functional Description 1-7
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
Ethernet Frame
At a later stage, the TDMoIP frame becomes a part of the standard Ethernet frame,
which also includes a UDP header, IP header and MAC. The Ethernet frames are
forwarded to the Ethernet switch, which sends them to one of the main links:
10/100BaseT or E1/T1. Figure 1-7 illustrates the structure of the Vmux-2100
Ethernet frame. Table 1-1 describes the fields of the Vmux-2100 Ethernet frame.
MAC
Layer
LLC
Layer
IP
UDP TDMoIP
Voi ce Voi ce Voi ceEthernet Ethernet
AAL2 AAL2 AAL2
Figure 1-7. Ethernet Frame Structure
Table 1-1. Ethernet Frame Fields
Field Length (bytes) Field
7 Preamble
1 SFD
6 Destination MAC Address
6 Source MAC Address
2 Type
1 Vers/HLEN
1 Service Type
2 Total Length
2 Identification
IEEE 802.1p&q VLAN Tagging
(additional 4 bytes if enabled)
IP Layer
UDP
Layer
Data
Layer
MAC
Layer
1 Flags/Fragment Offset (most)
1 Fragment Offset (least)
1 Time to Live
1 Protocol
2 Header Checksum
4 Source IP Address
4 Destination IP Address
2 UDP Source Port
2 UDP Destination Port
2 UDP Message Length
2 UDP Checksum
...
4 CRC
Payload
Note: The UDP source port
field is used to transfer a
destination bundle number.
1-8 Functional Description
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
VLAN Support
Vmux-2100 supports VLAN, according to IEEE 802.1p&q. When VLAN support is
enabled Vmux-2100 adds four bytes to the MAC layer of the Ethernet frame. The
content of these bytes, MAC layer priority and VLAN ID, can be set by the user. In
this mode, only VLAN format frames are sent and received by Vmux-2100. The
following figure describes the VLAN tag format.
81 00
802.1D Tag Protocol Type
(802.1QTagType)
UDP Support
Table 1-2. UDP Source Port as Destination Voice Port
Field Length (Bits) Field Description Value
2 bytes UDP Source Port* 2 – 497d
2 bytes UDP Destination Port 2142d
* – The MSB of this field can be either 1 or 0 for inband end-to-end proprietary signaling.
Note
The UDP Source Port field is used for destination voice bundle indication.
For example, if the destination is:
Bundle 1 – 02, Bundle 2 – 03, Bundle 3 – 04, Bundle 4 – 05, etc.
For more information about VLAN tagging, see IEEE Std 802.1 p&q.
user_priority
CFI = 0
8654
Priority
Figure 1-8. VLAN Tag Format
VID
8
1
VLAN ID
1
Ethernet Main Link
10/100BaseT main link receives Ethernet frames from the voice modules via the
Ethernet switch and forwards them to the remote device over the IP network. The
10/100BaseT main link of Vmux-2100 supports full duplex transmission with
autonegotiation and half duplex with the backpressure option.
E1/T1 Main Link
When using E1/T1 main link, Vmux-2100 adds HDLC flags to the Ethernet frames
and transmits them over a TDM network. The E1/T1 main link interface of
Vmux-2100 is fully redundant. When both of links are configured as active,
Vmux-2100 starts sending data over the one that was connected first. If a loss of
synchronization is detected on an active link, Vmux-2100 automatically switches
to the backup link.
The E1/T1 links operate with loopback timing by deriving clock from the device
connected to its E1/T1 port or with internal clock provided by the Vmux-2100
internal oscillator.
Functional Description 1-9
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
Bandwidth Utilization
By using TDMoIP multiplexing and the voice activity detection, Vmux-2100
supports a higher number of voice channels over TDM than it is possible by
utilizing conventional compression methods alone. TDMoIP multiplexing and
grouping the timeslots of compressed voice together into bundles with a common
IP address reduces the actual bandwidth used per channel to as low as 4 kbps
(16:1), when all channels are active. Better compression, up to 20:1, is achieved
when some of the voice channels are idle.
The actual bandwidth utilization is determined by the following factors:
• Header sizes:
Ethernet – 18 bytes
IP – 20 bytes
UDP – 8 bytes
TDMoIP – 4 bytes
VLAN (if exists) – 4 bytes.
• Size of the voice packet:
G.723 – 24 bytes + AAL2 header (3 bytes) + voice payload (4 bytes)
G.729 – 10 bytes + AAL2 header (3 bytes) + voice payload (4 bytes).
• Packet interval:
G.723.1 – 30 msec
G.729 – 10 msec.
• Number of timeslots in a bundle
• Silence percentage. Studies show that an average person speaks only 40% of
the time during a telephone conversation. 50% of the time is spent listening to
the other party, while the remaining 10% is spent quietly contemplating.
• Connectivity packets – 64 bytes per minute.
Calculating Approximate Bandwidth Utilization
Let us calculate an approximate bandwidth for 30 timeslots in one bundle with
G.723.1 (6.4 kbps) compression, 60 % of silence:
[(50 × 1000/40) + (30 × 31 × 1000/30 × 0.4)] × 8
1000
where:
• 50 – size of Ethernet, IP, UDP, TDMoIP headers
• 1000/40 – packets per second (pps) transmission rate, calculated according to
the packetizing interval chosen (40 msec in this example)
• 30 – number of timeslots
• 31 – size of the compressed G.732 packet plus AAL2 header and voice payload
+ 0.00853 = 109.208 kbps
• 0.4 – 60% of silence
• 8 – conversion from bytes to bits
• 1000 in the denominator – conversion from bits to kilobits
• 0.00853 – connectivity packets rate (64 bytes per minute) converted to kbps.
1-10 Functional Description
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
1.4 Technical Specifications
Ethernet
Main Link
Standards
Data Rate
Statistics
Range
Connector
IEEE 802.3, 802.3u, Ethernet 802.1p/q
10 or 100 Mbps, half duplex or full duplex,
autonegotiation support
According to RFC 1643 or RFC 2665:
• Received frames – Correct Frames, Correct Octets,
Alignment Errors, FCS Errors
• Transmitted frames – Correct Frames, Correct
Octets, Single Collision, Multiple Collision, Deferred
Transmission, Late Collision, Carrier Sense Error
Copper:
• Up to 100m (328 feet) over UTP Cat.5 cable
Fiber optic:
• 20 km (12 miles) over single-mode cable, 1310 nm
• 2 km (1.2 mile) over multimode cable, 1310 nm
Copper: RJ-45, 8-pin
Fiber optic: LC
E1 Main Link
Number of Links
Data Rate
Standards
Framing
Line Code
Receive Signal Level
Transmit Signal Level
Jitter Performance
Timing
Line Impedance
Connector
Two (one redundant)
2.048 Mbps
ITU-T Rec. G.703, G.704, G.706, G.732, G.823
G.732S and G.732N with or without CRC-4, in
compliance with ITU-T Rec. G.703, G.704, G.732
requirements
HDB3
0 to -43 dB with LTU
0 to -12 dB without LTU
Balanced: ±3V (±10%)
Unbalanced: ±2.37V (±10%)
Per ITU-T G.823
Internal or loopback
120Ω, balanced
75Ω, unbalanced
Balanced: RJ-45, 8-pin
Unbalanced: via CBL-RJ45/2BNC interface adapter
Technical Specifications 1-11
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
T1 Main Link
Number of Links
Data Rate 1.544 Mbps
Standards ANSI T1.403, AT&T TR-62411, ITU-T Rec. G.703
Line Code AMI
Zero Suppression B8ZS
Framing SF, ESF, transparent
Timing Internal or loopback
Statistics Full statistical diagnostics capability according to
Receive Signal Level 0 to -36 dB with CSU
Transmit Signal Level 0, -7.5, -15, or -22.5 dB with CSU
Jitter Performance Per AT&T TR-62411
Two (one redundant)
ANSI T1.403-1989
Local support of ESF diagnostics according to
AT&T PUB 54016
0 to -30 dB without CSU
±2.7V (±10%) at 0–655 ft without CSU
E1 Voice
Ports
T1 Voice
Ports
Line Impedance
Ports per Module Two or four
Data Rate 2.048 Mbps per port
Standards ITU-T Rec. G.703, G.704, G.706, G.732, G.823
Framing G.732S and G.732N with or without CRC-4, in
Line Code HDB3
Receive Signal Level
Transmit Signal Level
Jitter Performance Per ITU-T G.823
Line Impedance
Connector (per port) RJ-45, 8-pin
Ports per Module Two or four
100Ω, balanced
compliance with ITU-T Rec. G.703, G.704, G.732
requirements
0 to -43 dB with LTU
0 to -12 dB without LTU
±3V (±10%)
120Ω, balanced
1-12 Technical Specifications
Data Rate 1.544 Mbps per port
Standards ANSI T1.403, ITU-T Rec. G.703
Vmux-2100 Installation and Operation Manual Chapter 1 Introduction
Voice
Processing
Line Code AMI
Zero Suppression B8ZS
Framing D4, ESF
Receive Signal Level 0 to -36 dB with CSU
0 to -30 dB without CSU
Transmit Signal Level 0, -7.5, -15, or -22.5 dB with CSU
±2.7V (±10%) at 0–655 ft without CSU
Jitter Performance Per AT&T TR-62411, G.824
Line Impedance
Connector (per port) RJ-45, 8-pin
Compression
Algorithms
Silence Suppression G.723.1A, G.729B
Echo Cancellation 16 ms per channel as per G.168
Fax Relay Group III: 4.8, 9.6, 14.4 kbps
100Ω, balanced
G.723.1 (5.3 or 6.4 kbps), G.729 A (8 kbps),
G.711 (a-law/µ-law)
Control Port
Diagnostics
Voice-Band Modem Transparent transfer
MF Signaling
Support
Standard V.24/RS-232 (DCE)
Data Rate 9.6, 19.2, 38.4 or 57.6 kbps
Connector DB-9, female
Tests Local and remote loopbacks, tone injection towards the
Statistics Collection
DTMF, MFR2, MFC detection, generation and relay
local PBX, ping utility
Main link module:
• Ethernet (as per RFC 1643)
• CPU utilization
Voice modules:
• Ethernet
• CPU utilization
• HDLC
• Bundles
• Voice
• Voice Rx and Tx signaling
• Memory utilization
Technical Specifications 1-13
Chapter 1 Introduction Vmux-2100 Installation and Operation Manual
Indicators
Power Supply
Ethernet Main Link
E1 Main Link and
Voice Port
T1 Main Link and
Voice Port
General
Number
AC Source
DC Source
ACT (yellow), blinks according to the Ethernet traffic
LINK (green), ON – Good link integrity
LOC (red), ON – Local sync loss occurred
REM (red), ON – Remote sync loss occurred
RED (red), ON – Red alarm is received
YEL (red), ON – Yellow alarm is received
PWR1 (green), ON – Power supply 1 is on
PWR2 (green), ON – Power supply 2 is on
ALM (red), ON – An alarm is present in the system
TST (yellow), ON – A test is active
POWER (green), ON – Power supply is on
POWER (red), ON – Power supply is off
Two, redundant, hot-swappable
100 to 240 VAC, 50 or 60 Hz, 40W
-36 to -72 VDC (-48 VDC, nominal)
Physical
Environment
Height
Width
Depth
Weight
Operating
Temperature
Storage Temperature
Humidity
4.3 cm / 1.7 in (1U)
43.5 cm / 17.1 in
24.0 cm / 9.5 in
7.0 kg / 15.5 lb
0 to 50°C / 32 to 122°F
-20 to 70°C / -4 to 158°F
Up to 90%, non-condensing
1-14 Technical Specifications
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