Voice Compression
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VMUX-110

Specifications

NETWORK PORTS
Vmux-110 provides two 10/100BaseT Ethernet ports and one n x 64 kbps serial link. Ethernet Ports
� Standards
IEEE802.3, 802.3u, Ethernet, 802.1p&q
� Data Rate
10 or 100 Mbps, half duplex or full duplex, auto-negotiate
� Statistics
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 UTP Interface
Range: up to 100m on UTP Cat.5 cable
Connector: RJ-45 (per port) Serial Link
� Data Rate
n x 64 kbps, up to 2048 kbps
� Interface
Selectable for RS-530, V.35 or X.21
� Connector
DB-25, female
(For V.35 or X.21 interface, an adaptor cable is required � see
Ordering)

� Clock Modes
DCE: Vmux-110 provides clock to connected equipment
DTE: Vmux-110 accepts clock from connected equipment
(requires adaptor cable)

VOICE PORTS
Vmux-110 is available with choice of single E1 or T1 voice port, or 4 x FXS analog voice ports.
� Compression Algorithms
G.723.1 (5.3 or 6.4 kbps), G.729 A (8 kbps), G.711 (a-law or �-law)
� Silence Suppression
G.723.1 A, G.729B
� Echo Cancellation
16 msec per channel as per G.168
� Fax Relay
Group III: 4.8, 9.6, 14.4 kbps
� Voice Band Data
Transparent support for modems
� Signaling Support
Transparent CAS, including R2 and E&M
Transparent CCS, including ISDN, QSIG and SS7
� MF Signaling Support
DTMF, MFR2, MFC detection, generation and relay
E1 Digital Voice Port
� Number of Channels Supported
According to ordering: Up to 6, 12, 18, 24 or 30
� Nominal Data Rate
2.048 Mbps
� Standards
ITU-T Rec. G.703, G.704, G.706, G.732, G.823

� Framing
G.732N or G.732S, with or without CRC-4
� Line Code
HDB3
� Receive Signal Level
With LTU: 0 to -43 dB
Without LTU: 0 to -12 dB
� Transmit Signal Level
Balanced: �3V (�10%)
� Timing
Internal or loopback
� Jitter Performance
Per ITU-T G.823
� Line Type
Balanced: 4-wire, 120Ω
Unbalanced: Coax, 75Ω
� Connectors
Balanced: RJ-45 Unbalanced: pair of BNC
T1 Digital Voice Port
� Number of Channels Supported
According to ordering: Up to 6, 12, 18 or 24
� Nominal Data Rate
1.544 Mbps
� Standards
ANSI T1.403, AT&T TR-62411, ITU-T Rec. G.703
� Framing
SF, ESF
� Line Code
AMI
� Zero Suppression
B8ZS
� Timing
Internal or loopback

� Receive Signal Level
With CSU: 0 to -36 dB
Without CSU: 0 to -30 dB
� Transmit Signal Level
With CSU: 0, -7.5, -15, or -22.5dB
Without CSU: �2.7V (�10%) at 0-655 ft
� Jitter Performance
Per AT&T TR-62411
� Line Type
Balanced 4-wire, 100Ω
� Connector
RJ-45 FXS Analog Voice Ports
� Number of Ports
4
� Analog Parameters
ITU-T standards: G.713, 2-wire for voice and signaling.
Nominal level : 0 dBm
Nominal impedance : 600Ω
Return loss (300 to 3400 Hz): better than 20 dB
Frequency response (Ref: 1020 Hz):
300 to 3000 Hz: �0.5 dB
250 to 3400 Hz: �1.1 dB

Level adjustment, soft selectable:
TX: +5 dBm to -10 dBm
RX: +5 dBm to -10 dBm
Steps: 2 dB (�0.1 dB), nominal
Signal to total distortion, G.712, G.713 method 2:
0 to -30 dBm0: better than 33dB
+3 to -45 dBm0: better than 22dB
Idle channel noise: better than -70 dBm0 (+20 dBrnc)
� Signaling
EIA RS-464 Loop-Start
On-Hook/Off-Hook Threshold: 3V to 24V between TIP and
RING at off-hook state
Higher than 25V between TIP and RING at on-hook state
Feed Current:
24 mA �10%

Ringer:
Voltage: 50 VRMS (�10%), overload protected
Frequency: 25 Hz (�10%)
Cadence: 1 sec ON / 3 sec OFF
(default), user-configurable
� Connectors (per port)
RJ-11

CONTROL PORT
� Standards
RS-232/V.24 (DCE)
� Data Rate
9.6, 19.2, 38.4, 57.6 or
115.2 kbps
� Connector
RJ-45
GENERAL
� Diagnostics
Ethernet Ports:
Performance monitoring, LAN statistics, PING
E1/T1 Voice Ports: Local and Remote Loops on entire E1/T1
Tone injection per timeslot towards local side
FXS Voice Ports: Local and Remote Loops per channel
Tone injection per channel towards local side

� Indicators
PWR (green) � Indicates when power is on
ETH (green) � ON when Ethernet line is O.K.
ALM (red) � Indicates alarm is present in system
� Physical
Height: 4.3 cm/1.7 in
Width: 21.5 cm/8.5 in
Depth: 23.7 cm/9.3 in
Weight: 2.0 kg/4.4 lb
� Power (according to ordering)
Input:
AC: 100 to 240 VAC, 50/60 Hz
48: -36 to -72 VDC
Consumption:
4FXS: AC: 13.5W;
DC: 12.5W
E1/T1: AC: 10.2W;
DC: 9.0W
� Environment
Operating temperature:
0 to 50�C/32 to 122�F
Storage temperature:
-20 to 70�C/-4 to 158�F
Humidity: Up to 90%, non-condensing