VMUX-2100

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Vmux-2100Voice Trunking Gateway

FEATURES

• Efficiently transmits up to16 E1 or T1 voice trunksover a single link

• Simultaneous transmissionover IP and TDM networks

• Unique TDMoIPmultiplexing, together withvarious voice compressionalgorithms, provides up to16:1 compression foreffective bandwidth

utilization• Single Ethernet and

redundant E1/T1 uplinkports available

• Bandwidth is dynamicallyutilized according to Voice Activity Detection andsilence suppression

• G.168 echo cancellation of

up to 16 msec per channel• Group III Fax relay support

at rates of 4.8 to 14.4 kbps

• Transparent modem support for all common rates andstandards

• QoS support: Labeling IP level priority

(ToS) VLAN tagging and priority

labeling according to IEEE802.1p&q

• Supports HDLC channelcompression

• DTMF/MFR2/MFC signaldetection, generation andrelay

• Signaling supported: Transparent CAS

signaling, including R2and E&M

Transparent CCSsignaling, including ISDN,QSIG and SS7

• Management viauser terminal, securedSNMP and Telnet

• Enhanced local and remotediagnostics tools

• Hot swappable voicemodules

• Optional dualhot-swappable powersupply modules for loadsharing and redundancy

• Compact 1U-high platform,compatible with 19" racks

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Voice Trunking Gateway

Vmux-2100

Vmux-2100

Vmux-2100

Vmux-2100

Vmux-2100

PSTN PSTN

PSTN

PSTN

E1/T1s E1/T1s

E1/T1s

10/100BaseT 10/100BaseT

10/100BaseT

IP Network

E1/T1s

10/100BaseT

Central Site

Site C

Site B

Site A

Figure 1. Voice Trunking over IP in an Any-to-Any Point Application

DESCRIPTION

• Vmux-2100 is a modular VoiceTrunking Gateway that compresses and transports up to16 E1 or T1 voice trunks over E1,T1 or IP links. Vmux-2100employs G.723.1, G.729 Annex Aand G.711 compressionalgorithms, together with RAD’sunique TDMoIP multiplexing, totransmit up to 480/384 voicechannels, including transparent CAS and CCS signaling, over asingle E1/T1 or IP link.

• Voice Activity Detection (VAD)

and silence suppressiontechniques are used byVmux-2100, so that bandwidth isonly allocated when it is required,thus conserving bandwidth. Thegateway detects, generates andrelays DTMF/MFR2/MFCsignaling.

• Vmux-2100 supports relay of Group III fax, as well as allcommon modem rates andstandards. Modem transmissionsare handled as voice band data.

• Vmux-2100, only 1U-high, is acompact modular unit, that canbe installed in 19” racks. The unit consists of up to four VoiceCompression modules, a singleMain Link module, and up to two

power supply modules. Allmodules are plug-in andfield-replaceable. Power supply

and Voice Compression modulesare hot-swappable.

• Vmux-2100 is unique in that it is asingle device that can transmit compressed voice over both TDMand IP networks, and can easilyswitch between them wheneverthis may be advantageous ornecessary. Switching transmissionbetween TDM and IP links doesnot require additional investmentsin equipment and only minimalconfiguration changes.

MAIN LINK MODULE

• The Main Link module features asingle 10/100BaseT UTP or fiberoptic Ethernet port with optional Auto-Negotiation support. TheEthernet port operates at 10/100 Mbps speeds, half and fullduplex. The Ethernet interface iscompliant with the IEEE 802.3standard. It supports full Auto-Negotiation according to802.3x flow control for fullduplex, and backpressure option

for half duplex.• In addition to the standard

Ethernet port, the Main Linkmodule can also be ordered witha redundant pair of E1 or T1 portswith RJ-45 connectors.

• E1/T1 link redundancy iscontrolled by the main boardhost, based on physical alarm

reports, providing automaticswitching between the redundant E1/T1 links in case of a link failure.

• Ethernet performance monitoring and statistics are available forpackets received and sent to theIP network, collisions, deferredtransmission and carrier senseerrors (RFC 1643).

VOICE COMPRESSION MODULES

• Each Vmux-2100 VoiceCompression module includes 2 or

4 E1/T1 ports. The timeslotsreceived from the PBX E1/T1trunks are compressed by themodules using standard G.711,G.723.1, or G.729.A algorithms.The compressed payload bytes arethen encapsulated into a TDMoIPpacket that runs over IP. The sizeand packetizing interval areuser-configurable. The Ethernet packets are forwarded to theEthernet switch, which sends themto one of the main links:10/100BaseT or E1/T1.

• Timeslots are grouped togetherinto bundles. A different destination IP address can beconfigured for each bundle tosupport any-to-any connectivity(see Figure 1).

APPLICATIONS

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• By preventing packets from being sent when no voice activity isdetected, the VAD mechanismconserves bandwidth. Theimproved bandwidth utilizationenables Vmux-2100 to support ahigher number of channels overTDM links than is possible byusing conventional voicecompression methods alone. Byperforming TDMoIP multiplexing and grouping the timeslots of G.723.1 compressed voicetogether into bundles with acommon IP address, actual linkbandwidth used per channel can

be reduced to as low as 4 kbps (areduction of 16:1). This enables asingle Vmux-2100 unit, fullyequipped with four 4-port VoiceCompression modules, tocompress and transmit up 16 E1or T1 trunks (480/384 voicechannels) over a single 2 Mbps E1or 1.5 Mbps T1 link (see Figure 3).

• CAS and CCS signaling aretransparently transmittedend-to-end (see Figure 2).Vmux-2100 transmits HDLC-basedCCS signaling protocols such as

SS7, ISDN and QSIG as HDLCover IP. HDLC frames areremoved, and any signal payload issent in an IP packet. For ISDN andQSIG protocols, this results insignificant bandwidth savings.

QOS SUPPORT

• Vmux-2100’s IP port complieswith all relevant Ethernet LANstandards, such as IEEE 802.3 and802.3u. It provides reliable, highquality of service (QoS), byoptional VLAN tagging andpriority labeling according toIEEE 802.1p&q.

• The user can configure the ToS(Type of Service) of the outgoing IP packets. This allows an en-routeLayer 3 router or switch, whichsupports ToS (or Diffserv), to givehigher priority to Vmux-2100 IPtraffic for delay-sensitive

applications.• Assigned, IANA-registered UDP

socket number for TDMoIPsimplifies flow classificationthrough switches and routers.

MANAGEMENT

• All operating parameters of theVmux-2100 are configured using asimple, menu-based software. Forupgrades or backup, softwareupload and download can beperformed via TFTP.

• Vmux-2100 can be configuredand monitored via a local ASCIIterminal, Telnet, or via RADview,RAD’s Network Management system. Vmux-2100 provides aDB-9 Control port for direct connection of a local terminal formonitoring and control. Foroff-site management, a terminalcan also be connected via amodem extension to the Controlport using the optionalCBL-VMUX-MM-MODEM cable.

• Since Vmux-2100’s internalcontrol unit has its own IPaddress, the Ethernet port can also

be conveniently utilized as aconnection to management systems running over Ethernet networks. Management systemsconnected to one unit’s Ethernet port can even serve a remote unit,by placing the management information in a dedicatedtimeslot of the TDM link (in-bandmanagement). See Figure 4.

• For system security, Vmux-2100provides four different levels forusers: Monitor, Technician,

Operator and Administrator. Upto 20 different usernames withpasswords can be defined.

ISDN, SS7PBX

ISDN, SS7PBX

E1/T1 PBX E1/T1 PBXVmux-2100

Vmux-2100 Vmux-2100

Vmux-2100

E1/T1 Trunksusing CAS

E1/T1 Trunksusing CAS

E1/T1 Trunksusing CCS

E1/T1 Trunksusing CCS

10/100BaseT

10/100BaseT

IP Network

10/100BaseT

10/100BaseT

Figure 2. Compressed Voice over IP, Including Transparent Transmission of CCS and CAS Signaling

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Voice Trunking Gateway

Vmux-2100

SPECIFICATIONS

MAIN LINK MODULEMain Link Module includes a singleEthernet port standard, with additionof redundant E1 or T1 ports optional

Ethernet Port

• Number of Ports1

• StandardsIEEE802.3, 802.3u, Ethernet,802.1p&q

• Data Rate10 or 100 Mbps, half duplex or

full duplex, auto-negotiate• Statistics

According to RFC 1643, orRFC 2665: Received frames:

Correct Frames, Correct Octets, Alignment Errors, FCS Errors.

Transmitted frames:Correct Frames, Correct Octets,Single Collision,Multiple Collision, DeferredTransmission, Late Collision,Carrier Sense Error

• Indicators ACT (green) – blinks when trafficis detected over the Ethernet line

LINK (green) – ON when Ethernet line is O.K.

• Copper UTP InterfaceRange: up to 100m (330 ft) on

UTP Cat.5 cable

Connector: RJ-45

• Multimode Fiber InterfaceFiber type: 1300 nm, multimodeMax range: 2 km (1.2 miles)Connector: LC

• Single Mode Fiber InterfaceFiber type: 1300 nm, single modeMax range: 20 km (12 miles)Connector: LC

Note: Maximum range achieved withfiber interface is subject to actual cableconditions.

E1 Ports• Number of Ports

2 (one active, other for backup)

• Connectors (per port)RJ-45 for balanced interface

Note: CBL-RJ45/2BNC adapter is availablefor converting each Main Link module E1port RJ-45 connector into a pair of of BNCconnectors for unbalanced coax interface.

T1 Ports

• Number of Ports2 (one active, other for backup)

• StatisticsFull statistical diagnostics

capability according to ANSI T1.403-1989

Local support of ESF diagnosticsaccording to AT&T PUB 54016

• Connectors (per port)RJ-45

Note: Additional E1/T1 interface specificationsthat are applicable for both main link and voiceports are listed under General .

Control Port For direct connection of terminal,located on the Main Link module

• StandardsRS-232/V.24 (DCE)

• Data Rate9.6, 19.2, 38.4, 57.6 or115.2 kbps

• ConnectorDB-9, female

VOICE COMPRESSION MODULES

• Compression AlgorithmsG.723.1 (5.3 or 6.4 kbps), G.729 A

(8 kbps), G.711 (a-law or µ-law)• Silence Suppression

G.723.1 A, G.729B

• Echo Cancellation16 msec per channel as per G.168

• Fax RelayGroup III, 4.8, 9.6, 14.4 kbps

• Voice Band DataTransparent support for modems

• Signaling Support Transparent CAS signaling,

including R2 and E&M Transparent CCS signaling,

including ISDN, QSIG and SS7

• MF Signaling SupportDTMF, MFR2, MFC detection,generation and relay

• Ports per Module According to ordering:E1 Port Modules

2 (60 channels max) or4 (120 channels max),

T1 Port Modules2 (48 channels max) or4 (96 channels max)

PBX PBXVmux-2100 Vmux-2100

16 x E1/T1Trunks

16 x E1/T1Trunks

E1/T1TDM Network

E1/T1

Figure 3. Vmux-2100 Enables Supporting up to 480/384 Voice Channelsover a Single E1/T1 TDM Link

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PBX PBXVmux-2100Vmux-2100

E1/T1Trunks

E1/T1Trunks

10/100BaseT

E1/T1

IncludingIn-band

Management

E1/T1

IncludingIn-band

Management

TDM Network

Network ManagementStation

Ethernet LAN

Local SiteRemote Site

Figure 4. Management from Ethernet LAN to Remote Vmux-2100, In-band, via TDM Link

GENERAL

E1 Ports

• Data Rate2.048 Mbps (per port)

• StandardsITU-T Rec. G.703, G.704, G.706,G.732, G.823

• FramingG.732NG.732N with CRC-4G.732SG.732S with CRC-4

• Line CodeHDB3

• Receive Signal LevelWith LTU: 0 to -43 dBWithout LTU0 to -12 dB

• Transmit Signal LevelBalanced: ±3V (±10%)For Main Link module only: Unbalanced: ±2.37V (±10%)

• TimingInternal or loopback

• Jitter PerformancePer ITU-T G.823

• Line TypeBalanced 4-wire, 120Ω

• Indicators (per port)LOC (red) – indicates Local Sync

Loss on port REM (red) – indicates Remote

Sync Loss on port

• Connectors (per port)RJ-45 for balanced interface

T1 Ports

• Data Rate

1.544 Mbps (per port)• Standards

ANSI T1.403, AT&T TR-62411,ITU-T Rec. G.703

• FramingSF, ESF

• Line Code AMI

• Zero SuppressionB8ZS

• Receive Signal LevelWith CSU: 0 to -36 dBWithout CSU: 0 to -30 dB

• Transmit Signal LevelWith CSU: 0, -7.5, -15, or -22.5 dBWithout CSU: ±2.7V (±10%) at

0-655 ft

• TimingInternal or loopback

• Jitter PerformancePer AT&T TR-62411

• Line TypeBalanced 4-wire, 100Ω

• Indicators (per port)RED (red) – indicates Local SyncLoss (Red Alarm) on port

YEL (red) – indicates Remote SyncLoss (Yellow Alarm) on port

• Connectors (per port)RJ-45

Other

• E1/T1 Alarms (per port)

LOS – Loss of SignalLOF – Loss of Frame AIS – Alarm Indication SignalRDI – Remote alarmLOMF (E1 only) – Loss of

Multiframe alarmLCV – Line Code Violation

• Unit Panel IndicatorsTST (yellow) – Indicates test is

being run in system ALM (red) – Indicates alarm is

present in systemPWR 1 (green) – ON when

Power Supply Module 1 isproviding powerPWR 2 (green) – ON when

Power Supply Module 2 isproviding power

• Diagnostics Main Links:

IP Diagnostics: Performancemonitoring, LAN statistics, PING

E1/T1 Diagnostics: Local andRemote Loopbacks

Voice Compression ports:Local and Remote Loopback,

per E1/T1 channel

Tone injection towards the localside: per timeslot, per entireE1/T1 channel, or on all E1/T1channels simultaneously

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2001–2003 RAD Data Communications Ltd. Specifications are subject to change without prior notice. All other trademarks are the property of their respective holders.


data communications

www.rad.com

International Headquart24 Raoul Wallenberg StreTel Aviv 69719, IsraelTel: (972) 3-6458181Fax: (972) 3-6498250, 64Email: [email protected]

U.S. Headquarters900 Corporate DriveMahwah, NJ 07430Tel: (201) 529-1100Toll free: 1-800-444-7234Fax: (201) 529-5777Email: [email protected]

164-100-01

• PowerInput (according to ordering): AC: 100 to 240 VAC, 50/60 Hz

DC: -48 (-36 to -72) VDCOutput (per PS module):

3.3 VDC: up to 15A5 VDC: up to 5ATotal: 60W

Note: Two hot-swappable power supplymodules can be installed for redundancyand load-sharing.

• PhysicalHeight: 4.3 cm/1.7 in (1.U)Width: 43.5 cm/17.1 inDepth: 24.0 cm/9.5 inWeight: 7 kg /15.5 lb

• EnvironmentOperating temperature:

0 to 50°C/32 to 122°FStorage temperature:

-20 to 70°C/-4 to 158°FHumidity: Up to 90%,

non-condensing

ORDERING

VMUX-2100/*/$Voice Trunking Gateway System

Note: System includes chassis, power suppliesand power supply cables only. A Main LinkModule and at least one Voice CompressionModule must be ordered for every Vmux-2100system. All modules can be ordered separately.

MODULES

VMUX-M/M-ETH/@-&Main Link Module with singleEthernet port and optional redundant

E1/T1 ports VMUX-M/VC-&/%Voice Compression Module

VMUX-2100-PS/*Power Supply Module

ORDERING OPTIONS

* Specify power supply type: AC for 100 to 240 VACDC for -48 (-36 to -72) VDC

$ Specify R for redundant powersupplies (of same type)

@ Specify Ethernet port interface type:MM for multimode 1330nm fiber

100BaseF interfaceSM for single mode 1310nm fiber

100BaseF interfaceDefault is copper UTP 10/100BaseTinterface

& Specify for TDM interface type:E1 for E1 ports

T1 for T1 portsDefault on the main link moduleis Ethernet port only

% Specify number of ports:2 for 2 ports4 for 4 ports

CABLES

Note: All cables are ordered seperately.

CBL-RJ45/2BNCInterface adapter for converting oneMain Link module E1 port RJ-45connector into a pair of BNCconnectors for unbalanced coaxinterface.

CBL-VMUX-MM-MODEM Cable with DB-9 connectors forconnecting a modem to Vmux-2100’sControl port. Cable length is 20 cm.

VMUX-2100

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