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6/1531-ANF 901 14 Uen F1 2013-11-29
7.3
Synchronization ring cable
The synchronization port on the ELU31 board is used to distribute the
synchronization pulses, to send Frame Counter Values (FCV) and to
communicate the information used to establish each individual board
roles, to all ELU31 boards in the synchronization ring. The port also
provides the functionality of Automatic Cable Delay Measurement.
For single board system the synchronization ring cable has to be
connected from the SYNC TX port to the SYNC RX port on the same
ELU31 board.
Note:
When ELU31 board are used in the ring, the mentioned cables
must be used:
7.4 Base
station
cable
Cable TSR 910 1054 can be used to connect base stations to the ELU31
front connectors. Independent if it is used as 16 or 32 individual board.
Cables to be used with
ELU31
TSR 901 1226/3000
Between ELU31
boards in the same
stack
Cables used for the
synchronization ring
outside the cabinet
TSR 901 1226/5000
Between ELU31
boards in adjacent
stacks
TSR 901 1226/5000
Between first and
last ELU31 board,
or between ELU31
and MDM/MD
Cable used for the
synchronization ring
inside the cabinet
TSR 901 1235/2300
