4-92
IMACS System Release 5.1.9
Reference Guide
Model No.
Running Head
ADPCM Card Redundancy
System Configuration and Operation
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.