PRODUCT SCOPE
The MiCOM P591, P592 and P593 are stand-alone
fiber optic to electrical communications
interface units. They can be used with the Mi
COM P54x and P521 current differential relays
or other MiCOM protection relays that support InterMiCOM
64
communications.
The P591, P592 and P593 interface units allow the relays to be connected to remote
multiplexing equipment or other communication network equipment.
The MiCOM P591conforms to the ITU-T G.703 co-directional interface at up to 64 kbit/ s.
The MiCOM P592 conforms to the ITU-T V.35 interface at up to 64 kbit/ s.
The MiCOM P593 conforms to the ITU-T X.21 interface at up to 64 kbit/ s.
The interface units are usually located close to the PCM multiplexer and provide signal
conversion between the relay and the PCM multiplexer. The interface units are housed in a
MiCOM 10TE case and are suitable for flush mounting. The communication connections of
the devices are shown in
Figure 1