Operation and Maintenance Terminal
• Installation (display/define external alarm setup).
• Site acceptance (monitor external alarms status).
28.3.6 Cable Loss
The following user function, related to Cable loss, is available in the
OMT:
• Define cable loss, defines cable and feeder loss values.
28.3.7 PCM Network
The following user functions, related to the PCM network, are available
in the OMT:
• Set transmission interface type sets transmission interface type in
the database to G.703 2048 kbit/s or DS1 1544 kbit/s
• Modify available synchronization source sets whether PCM link A
and B, or anyone of them is to be available as synchronization
source. Possible settings are: Activated or Not activated
• Display available synchronization source displays whether PCM
link A and B, or anyone of them is available as synchronization
source. Possible settings are: Activated or Not activated.
The following user functions, related to the /G. 703/ 2048 kbit/s PCM
network, are available in the OMT:
• Display spare bits, display spare bits in timeslot 0 on G.703,
values (0 or 1) for bits Sa4-Sa8.
• Define spare bits (bits can be defined independently of each other).
• Display CRC-4 (Cyclic Redundancy Check /G.704/), display
whether handling of CRC-4 in timeslot 0 on G.703 is on or off.
• Switch on CRC-4.
• Switch off CRC-4.
• Monitor maintenance data, display PCM reference data and update
changes continuously.
• Set Network_topology value.
Set Network_topology value for stand alone or cascade
connection of RBSs.
• Display Network_topology value.
Display whether the network topology of the RBSs is stand alone
or cascade connection.
• Set LBO values, set line build out values for a T1 transmission
interface individually for PCM links A and B.
• Display LBO values.
• Set FDL use, sets facility data link use values for a T1
transmission interface.
172 (306)
EN/LZT 123 2697 R5A
1998-08-13
© Ericsson Radio Systems AB
— All Rights Reserved —
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