
DS2176
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SIGNALING SUPERVISION MODES Table 2
SM0
SM1
FMS
SELECTED MODE
0
193S framing, no integration, 1 multiframe freeze.
0
1
193E framing, no integration, 1 multiframe freeze.
0
1
0
193S framing, 2 multiframes integration and freeze.
0
1
193E framing, 2 multiframes integration and freeze.
1
0
1
193S framing, 5 multiframes integration, 2 multiframes freeze.
1
0
1
193E framing, 3 multiframes integration, 2 multiframes freeze.
1
0
193S framing, no integration, 1 multiframe freeze, replace robbed bit
signaling bits at SSER with ones.
1
193E framing, no integration, 1 multiframe freeze, replace robbed bit
signaling bits at SSER with ones.
NOTE:
1. During slip or alarm conditions, integration is limited to two multiframes to minimize signaling delay.
SLIP AND SIGNALING SUPERVISION LOGIC TIMING Figure 7
NOTES:
1. Integration feature disabled (SM0=SM1=0) in timing set shown.
2. Depending on present buffer depth, forcing ALN low may or may not cause a slip condition.