Installation Manual

Release 3.3, Revision A 1/99
18 WAVEXpress/BTS Installation and Commissioning Guide
This section describes the cabling for a standard BTS.
Extreme care should be used when connecting SMA cables, as misalignment of
the cable with the connectors can damage both parts and degrade the cable's
performance. Follow these steps when connecting SMA cables:
Cable Connection
1
Before tightening the SMA cable, carefully position the SMA male connector of
the RF or clock cable in line with the SMA female connector of the module,
with minimal bending of the cable. The connector has to be perfectly cen-
tered and perpendicular with respect to the plane of the module.
2
At this point, start to tighten the connector by hand. If it becomes too tight, it
means that the connector is not correctly centered. Loosen the connector
and carefully try again as described in step 1.
3
When the connector has been tightened by hand, finish tightening with an
SMA torque wrench to 7 to 10 in/lbs. (80 to 115 N cm)
Cable Disconnection
1
Initially loosen the connector with a wrench. Finish loosening the connector
by hand.
2
Carefully remove the cable and the male connector from the female connec-
tor of the module, making sure that there is minimal bending of the cable.
NOTE
☛
In the following sections, cables are identified by their descriptor and their part
number which consists of a six digit number. An example of this would be the
receive cable Rx 6,7 with part number 740047. The revision number of the cable,
which is for example the -02 in the part number 740047-02, is not called out in
the document.