
3006M100-002
13-1
13
ISDN BRI-S/T I/O CARD
The ISDN BRI-S/T I/O Card mounts on the motherboard in any of slots 1-6.
When used alone, it enables the CX900e to exchange data over a BRI-S/T
interface. With a C31 DSP-based Dual Digital Voice Compression (DDVC) Card,
the ISDN BRI-S/T I/O card can exchange compressed voice over both Bearer (B)
channels.
WARNING: The DDVC (Dual Digital Voice Compression) Card cannot coexist
with the following C54 DSP-based cards in the same CX900e chassis:
- Dual Analog Voice I/O Card (DAV I/O)
- ISDN BRI-S/T Digital Voice I/O Card
In networks where the telco supplies Network Termination 1 (NT1), the CX900e
must use a BRI-S/T (4-wire) interface.
Summary of Contents for CX900e
Page 1: ...CX900e Hardware Reference Manual Mkt ID AD010010 Part 3006M100 002 Date March 2000 ...
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Page 26: ...CX900e Hardware Reference Manual 1 2 3006M100 002 Figure 1 1 The CX900e Access Switch ...
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