Differences between timeslots occupied by GE services on LOM boards and those on other boards

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Different from other boards, a LOM board maps a client service into an STM-64 signal and then multiplexes the STM-64 signal into an OTU2.An STM-64 signal is divided into 8 timeslots, each of which occupies 1.24 Gbit/s bandwidth. Therefore, a GE service on a LOM board occupies one timeslot.
On other boards, each timeslot occupies 155 Mbit/s bandwidth. Therefore, a GE service on another board occupies seven timeslots.

Other related questions:
Reason why the timeslots occupied by GE services on the LOM board are different from those on other boards
The LOM board is specially designed to map client-side services to STM-64 signals and then encapsulate the services into OTU2 signals. STM-64 is divided into eight timeslots, and the bandwidth of each timeslot is 1.24 Gbit/s. Therefore, only one timeslot is required for the GE service. In contrast, the bandwidth of each timeslot on other boards is 155 Mbit/s, and 7 timeslots are required for the GE service.

FC services that are supported by the LOM board
The LOM board supports the following FC services: FC100: SAN service at a rate of 1.06 Gbit/s FC200: SAN service at a rate of 2.12 Gbit/s FC400: SAN service at a rate of 4.25 Gbit/s

Whether two GE services on two TOM boards can be cross-connected to the same ODU1 timeslot on an ND2 board
The cross-connections between the TOM and ND2 boards are ODU1 cross-connections, which occupy the entire ODU1 timeslot. Therefore, two GE services on two TOM boards cannot be cross-connected to the same ODU1 timeslot of an ND2 board.

Service interconnection between TOA and TOG boards
Services on the TOA board can be interconnected with those on the TOG board.

Relationship between bit errors of a tributary board and those of an optical board
Relationship between bit errors of a tributary board and those of an optical board: 1. As the tributary board detects signals from a cross-connect board, if bit errors occur on the optical board, they will also occur on the tributary board. 2. If the optical board has no bit errors, bit errors may occur on the tributary board due to faults of the tributary board or cross-connect board. 3. If the tributary board has no bit errors, the optical board is normal and has no bit errors either.

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