Alstom MiCOM P54 Series - 9.1.1.2 Fiber connections to C37.94; 9.1.2 Communications using P591 interface units

P54x/EN CM/La4 Commissioning
(CM) 10-58 MiCOM P543, P544, P545 & P546
CM
Relays
manufactured pre
April 2008
850 nm
multi-mode
1300 nm
multi-mode
1300 nm
single-mode
Maximum
transmitter power
(average value)
-16.8 dBm -6 dBm -6 dBm
Minimum
transmitter power
(average value)
-25.4 dBm -49 dBm -49 dBm
Relays
manufactured
post April 2008
850 nm
multi-mode
1300 nm
multi-mode
1300 nm
single-mode
Maximum
transmitter power
(average value)
-16.8 dBm -7 dBm -7 dBm
Minimum
transmitter power
(average value)
-25.4 dBm -37 dBm -37 dBm
Record the received power level(s).
Reconnect the fiber(s) to the P54x receiver(s).
9.1.1.2 Fiber connections to C37.94
It is nece
ssary to check the optical power level received from the P54x at the C37.94
multiplexer, as well as that received by the P54x from the C37.94 multiplexer.
Remove the loopback test fibers and at both ends of each channel used, reconnect the fiber
optic cables for communications between relays and the C37.94 compatible multiplexer,
ensuring correct placement.
When connecting or disconnecting optical fibers care should be taken not to look
directly into the transmit port or end of the optical fibers.
In a similar manner to that described in section 9.1.1.1, check that the value received from
the P54x at the C37.94 m
ultiplexer, as well as that received by the P54x from the C37.94
multiplexer are in the range presented in the table below.
Maximum transmitter power (average value) -16.8 dBm
Minimum transmitter power (average value) -25.4 dBm
Record the received power level(s).
Reconnect the fiber(s).
9.1.2 Communications using P591 interface units
Return to the P591 units.
Ensu
re that all external wiring that has been removed to facilitate testing is replaced in
accordance with the relevant connection diagram or scheme diagram.
If applicable, replace the secondary front cover on the P591 units.