Specifications

Installation and Operation Manual Chapter 1 Introduction
Vmux-210 Ver. 1.1 Overview 1-3
Features
Ethernet Links
Vmux-210 provides two half/full duplex, 10/100BaseT Ethernet ports, each with
autonegotiation support. One port can function as the uplink to the IP network,
while the other is provided for connecting the user Ethernet LAN to the
Vmux-210 unit. Together with the Vmux-210's integral Ethernet switch, this
allows integrating the user LAN traffic with the compressed voice, over a single
uplink to the network.
If autonegotiation is disabled, the Ethernet ports can be configured to any of the
following operation modes:
• 10BaseT – half or full duplex
• 100BaseT – half or full duplex.
The main link Ethernet port supports direct and indirect connection to the IP
network.
Serial Main Link
Vmux-210 has a single TDM Serial Link with a RS-530/DCE interface. This serial
port supports n x 64 kbps data rates, from 64 to 2048 kbps. Additional serial
interfaces are supported via adapter cables. For more information, see
Product
Options
on page 1-1 .
Voice Interfaces
Vmux-210 is ordered with 12, 15, 24, or 30 analog voice interfaces.
Voice Activity Detection mechanism allows optimizing bandwidth utilization, as
Vmux-210 generates traffic only when voice activity is detected. Vmux-210 uses
the G.723.1 and G.729A voice compression techniques, silence suppression and
the G.168 standard for echo cancellation (echo tail up to 32 ms per channel).
Vmux-210 detects, relays, and generates DTMF signals. In addition, Vmux-210
supports Group III fax relay (4.8, 9.6, 14.4 kbps), modem relay (up to V.34), and
voiceband data.
TDMoIP Multiplexing
Vmux-210 encapsulates the payload bytes in a UDP frame that is transferred over
IP and over Ethernet.
The maximum number of TDM bytes in a multiplexed frame and maximum
packetizing interval are user-configurable.
A destination IP address is configured for each bundle (see
Bundling on
page
1-4 ).
AAL2oMPLS Multiplexing
When using non-IP based Ethernet networks or the E1/T1/Serial uplink, the
AAL2oMPLS format can be used instead of TDMoIP. The AAL2oMPLS header is