Specifications

Reference Guide

4-99

System Configuration and Operation ADPCM Card Redundancy

Figure 4-67. Typical Cross-Connect WAN Card Redundancy Switch in Progress

4.28 ADPCM Card Redundancy

The integrated access system can also have ADPCM cards, which use voice compression

technology to effectively increase the digital voice transmission capabilities of voice cards

(E&M, FXS, or FXO) or WAN links. See Server Card Reference Guide for more information

on the ADPCM card.

Each system can have up to three ADPCM cards in slots P1 through P3, depending on slot

availability. In systems with two or three ADPCM cards, any of those cards can be selected as

the redundant (backup) card. There are no restrictions on chassis slot order.

Figure 4-68 shows a system with three ADPCM cards. The ADPCM card in slot P1 is

highlighted. Pressing <Enter> will bring up the ADPCM Main Screen shown in Figure 4-69.

Node_1 | | 12-31-99 14:33

Slot Installed Status

C1 CPU XCON

P1/U1 E&M 4Wx8ER ssssssss

P2/U2 E&M 4Wx8ER ssssssss

P3/U3 FXS 2Wx8-9 ssssssss

P4/U4 SRU 232x10 ssssssssss

W1/U5 CSU+CSU rr

W2/U6 CSU+CSU aa

W3/U7 CSU+CSU aa

W4/U8 CSU+CSU aa

IF INTF+modem

S1 PS1

S2 PS2

S3 Ringer