Specifications

Reference Guide

4-101

System Configuration and Operation ADPCM Card Redundancy

To choose a redundant ADPCM card for the system, proceed as follows:

1. Go to the System Main Screen (if you are not already there).

2. Select the desired ADPCM card from the System Main Screen, and press <Enter> to go

to the Main Screen of that card. Figure 4-69 shows the card in slot P1 is chosen.

3. Highlight the STATE parameter of any ADPCM port on the card, and press the <Enter>

key. This changes the STATE setting to

rdnt

. The entire ADPCM card now becomes the

redundant ADPCM card for the system.

The System Main Screen now looks like Figure 4-70. The status of all ADPCM ports of the

card in slot P1 is “

”.

Figure 4-70. Typical ADPCM Card Redundancy Switch in Progress

If the card in slot P2 or P3 fails, the entire voice compression network will switch to the

redundant card in slot P1. When the Out of Service condition is repaired, the ADPCM card in

the slot that previously failed becomes the redundant card for the system.

The system does not require any ADPCM cards to be redundant. All three slots (P1 to P3) can

be used for normal traffic on ADPCM voice networks.

Node_1 | | 12-31-99 14:33

Slot Installed Status Slot Installed Status

C1 CPU XCON IF INTF+modem

C2 U1 ALR ssss

P1 ADPCM-64 rrrrrrrr U2 E&M 4Wx8-6 ssssssss

P2 ADPCM-64 ssssssss U3 FXS 2Wx8-9 ssssssss

P3 ADPCM-64 ssssssss U4 FXO 2Wx8-9 ssssssss

W1 CSU+CSU aa U5 HSU 366x2 ss

W2 CSU+CSU aa U6 OCU-DPx5 sssss

W3 CEPT+CEPT aa U7 FRAD-10 ssssssss

W4 CEPT+CEPT aa U8 SRU 232x10 ssssssssss

F1 PS1 R1 RINGER