NSE-8G™ Standard Product Data Sheet
Preliminary
Figure 20 CAS Multiframe Timing
0us
2500us
5000us
C1FP
All CMPs
Frame Alignment
SBI frame time
T1 multiframe
E1 multiframe
T1 Signaling MF #1
E1 signaling MF #1
T1 Signaling MF #2
E1 signaling MF #2
250us
E1 signaling MF #3
E1
Figure 21 Switch Timing DSOs with CAS
0us
C1FP
All CMPs
SBI Frame Time
Internal Sigs
SBS#1 IC1FP.INT
NSE RC1FP.INT
SBS#2 RC1FP.INT
SBS#2 OC1FP.INT
SBS#1 TCMP.INT
NSE CMP.INT
SBS#2 OCMP.INT
12.3.2 SBS/NSE-8G Systems Switching DS0s without CAS
This is very similar to the DS0 switching system configuration with CAS described in the
previous section. The only difference is that in this system the global C1FP can be reduced to
every SBI multiframe rather than the longer 48-frame SBI bus signaling multiframe. The
advantage is that there is less latency when making switch configuration changes via the CMP
signals.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010850, Issue 1
139
PMC [ PMC-SIERRA, INC ]
