The cross-connection function between two LOG or ELOGS boards on the left and right sides of the subrack fails because the hardware bus is restricted.
Optical Transponder Unit
Subrack
Symptom
The cross-connection function between two LOG boards on the left and right sides of the subrack fails. Relevant documentation, however, shows that the LOG board supports the function.
Cause Analysis
The hardware bus is restricted. The backplane of the OptiX Metro 6100 V100R006 subrack consists of two parts, that is, slots IU1-IU6 and slots IU8-IU13. The two LOG or ELOGS boards can be configured with the inter-board GE service cross-connection and the WXCP protection if the two boards are both installed in slots IU1 and IU3 or IU8 and IU10.
The ELOG or ELOGS board supports the inter-board GE service cross-connection across cross-connect planes.
- The combination of two ELOG or ELOGS boards in the same cross-connect plane (in slots IU1-IU6 or slots IU8-IU13) supports the cross-connection of a maximum of eight pairs of GE services.
- The combination of two ELOG or ELOGS boards in two paired slots (IU1 and IU8, IU2 and IU9, IU3 and IU10, IU4 and IU11, IU5 and IU12, or IU6 and IU13) also supports the cross-connection of a maximum of eight pairs of GE services.
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