Media Card - Nortel 1000E Installation And Configuration Manual

Figure 5
Connectors at the back of the Signaling Server
not used
Universal AC
power cord
connector

Media Card

not used
not used
The Media Card, described in Table 3 and shown in Figure 6, connects an IP
and circuit-switched device using Digital Signal Processors (DSPs) for either
line or trunk applications. The DSPs, enabled by a Voice Gateway
application, performs media transcoding between IP voice packets and
circuit-switched devices.
The Media Card also provides echo cancellation and compression/
decompression of voice streams.
Table 3
Media Card profile (Part 1 of 2)
Property
Product Code
Power
Communication Server 1000E
System components
TLAN (P2)
ELAN (P1)
Description
• NTDU41DA
Media Card 32 Port IP Line 3.1/Voice Gateway
• NTDU41DB
Media Card 8 Port IP Line 3.1/Voice Gateway
• Powered through a Media Gateway or a Media
Gateway Expander.
Page 49 of 488
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Installation and Configuration