Chapter 1 Introduction Installation and Operation Manual
1-20 Technical Specifications Vmux-210 Ver. 1.1
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
Reverse Polarity Generation
Pulse Metering Generation: 16 KHz or 12 KHz (user
selectable)
Voice
Processing
Compression
Algorithms
G.723.1, G.729 A, G.711 (a-law/μ-law)
Silence
Suppression
G.723.1A, G.729B
Echo
Cancellation
32 ms per channel as per G.168
Modem Relay
All common rates and standards
Fax Relay
Group III: 4.8, 9.6, 14.4 kbps
Voice-Band
Modem
Transparent transfer
MF Signaling
Support
DTMF detection, generation and relay
Caller ID Relay
Conforms to U.S. standard (Telcordia Bellcore type 1), as
well as to European standard (V.23), user-selectable.
Available only with G.729A (8 kbps) codec.
Control Port
Standard
V.24/RS-232 (DCE)
Data Rate
9.6, 19.2, 38.4, 57.6 or 115.2 kbps
Connector
DB-9
Diagnostics
Tests
Ethernet Ports:
• Performance monitoring
• LAN statistics
• PING
FXS Voice Ports:
• Remote loops per channel
• Tone injection per channel towards local and remote
side
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