Memotec CX950

3021M100-002
11-1
11
ISDN-S/T I/O CARD
The ISDN-S/T I/O Card mounts on the motherboard in any of slots 1-8. When
used alone, it enables the CX950 to exchange data over an ISDN BRI-S/T
interface. With a Dual Digital Voice Compression (DDVC) Card, the ISDN-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 cards in the same CX950 chassis:
- Dual Analog Voice I/O Card (DAV I/O)
- BRI Digital Voice I/O Card (BRI-DV I/O)
- Digital Interface Module (DIM) I/O Card (when used for voice)
In networks where the telco supplies Network Termination 1 (NT1), the CX950
must use an ISDN-S/T (4-wire) interface.