System information

FCD 901 48
Issue R2A, 07.2009
XMP1 Release 5.5 System Description
MSP Linear Multiplex Section Protection
Page 3-22 Proprietary Information Aastra
MSP with one SDH module SCU
If an XMP1 node includes only one SCU module, MSP 1+1 can be
configured as follows:
Example 1: see Fig. 3.9
- STM-N West: Working channel
- STM-N East: Protection channel
Example 2:
- STM-N West: Protection channel
- STM-N East: Working channel
MSP with two SDH modules SCU in an XMP1 node
If an XMP1 node includes two SCU modules, MSP 1+1 can be configured
between all STM-N interfaces of the modules available.
Example 1: see Fig. 3.10
SCU-A:
STM-N West: Working channel
SCU-B:
STM-N East: Protection channel
Example 2: see Fig. 3.11
SCU-A:
STM-N West: Protection channel
SCU-B:
STM-N West: Working channel
STM-N
West
STM-N
East
SCU
STM-N
West
STM-N
East
SCU
Working channel
Protection channel
Figure 3.9: MSP 1+1 with one SCU module in the XMP1 node (example 1)
XMP1 node 1
XMP1 node 2