User's Guide

Nortel Networks Confidential
44
UMT/DCL/DD/0002
411--8111--905
Preliminary 01.06/EN october 2001
UMTS01
The GPSAM is a single module located on the right--hand side of the iBTS digital shelf.
Front panel description
The front panel of the GPSAM module has:
one ”interco link” (RJ--45 type connector) connector used to connect the interconnection module in
case of an extension cabinet
one ”Internal bus” (RJ--45 type connector) connector used for the iBTS internal bus link
one ”External bus” (RJ--45 type connector) connector used for the iBTS external bus link
one three positions switch: “Base”, “Ext. 0”, and “ Ext. 1” which indicates in which cabinet (base
cabinet, first extension cabinet, or second extension cabinet) the digital boards are inserted.
two “GPS Ant” 15--pin D--sub female connectors for the optional connection of GPS smart receivers,
not used in this product release.
Leds
The front panel of the GPSAM module has two corporate leds indicating the GPSAM status:
Green
rectangular
LED
Red triangular
LED
Status
OFF OFF sleep, unpowered or not inserted
ON ON power up self--test underway
ON OFF operational module
OFF ON alarm state
TRM interface
Power supply
The GPSAM is powered with external --48 V dc.
The maximum power is estimated at 20 W.