Product manual

Maintenance, Part replacement
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
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5.7 Re-positioning boards
The CPU keeps initialization data of all boards in its memory. This data is related to the board position.
If the procedures below are maintained, no initialization data will be lost and significant time on re-
configuring a system can be saved.
SPU boards
• Execute Board-Replace for the SPU and re-insert the SPU in the new position.
DTU boards
• Execute Board-Replace for the DTU. Remove the DTU and put the DTU in the new position.
• Execute Board-Reset to move all extension numbers from the old to the new board position.
• Execute Board-Remove for the old DTU position.
LTU boards
• Do the same as for DTU boards.
CLU and CLU-S boards
• View the base station window in CSM to display the programmed cable delay values for the eight
base stations.
• Execute (as System manager) Board-Remove, then withdraw the board and insert in the new
position.
• Execute (as Distributor) Base Station-Add and re-enter the noted cable delay value for the new
position.
SLU boards
• As procedure for CLU and CLU-S boards
5.8 Adding boards
New boards placed into the system are automatically detected by the CPU within 1 minute.
5.9 Fuses
Modular cabinet - fuses near power switch
Left fuse In + rail, red wire.
- Protection against overload AC
- Protection against overload DC supply (non-earthed)
- Protection against reversed DC supply (non-earthed) connection
- Protection against reversed PBX (–48V) connection
- Protection against DC supply with grounded – rail
Right fuse In – rail, black wire.
- Protection against overload PBX supply with grounded + rail (–48V)
- Protection against overload AC
- Protection against overload DC supplies (non-earthed)
- Protection against reversed DC supply (non-earthed) connection
Replacement: