User's Manual Part 3
RF Filter Tray – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 9-59
PRELIMINARY
Table 9-34: Procedure to Install Filter Tray Kit SGLF4152
Step Action
4 Connect cables to the RFL–MAIN, RFL–DIV, and FWD–DIV connectors at the inside rear of the
BTS, respectively. Use a 5/16–in wrench to secure cables to connectors. Torque to 1 N–M.
NOTE
Cables have two heat shrink sleeves with a slight separation between them. The cMPC cable clip
slides into this separation to hold the cables in place.
5 Install RX MAIN and RX DIV cables as follows:
– Ensuring the cable is on the inside of BTS, place RX DIV (green) cable into slot 1 of cMPC cable
clip (Connector labeled RX DIV faces towards the front of BTS)
– Place RX MAIN (blue) cable into slot 2 of cMPC cable clip (Connector labeled RX MAIN faces
towards the front of BTS).
– Place (red) cable into slot 5.
– Place (black) cable into slot 6.
6 Perform Table 9-33 to install the cMPC cable clip. (If it had been removed.)
7 Set Filter Tray on the edge of its slot and connect the RX MAIN (blue) and RX DIV (green) cables to
the output connector at the rear of their respective filters. See Figure 9-22.
8 Slide Filter Tray into BTS chassis and secure using 2 M4 screws. Torque to 2.3 N–M (20 in–lbs).
9 Connect the following cables:
– RX MAIN (blue) to RX MAIN input
– RX DIV (green) to RX DIV input
– RX RFL–MAIN (blue) to RFL–MAIN input
– RX RFL–DIV (green) to RFL–DIV input
– RX FWD–DIV (green) to FWD–DIV input
See Figure 9-22.
10 Use tie–wraps to dress cables as necessary.
11 Install the rear right side vent panel. Ensure that the clip end faces the front of the BTS or towards the
left.
12 Install the front right side vent panel. Ensure that the clip end faces the front of the BTS or towards the
left.
13 Make sure the vent panels are flush with the side of the BTS.
14 Install CBIO Board following the procedure in Table 9-27.
15 Install circuit cards and modules, ensure they are seated properly.
16 Install HSO Module cover panel by sliding its flange into the slot, closing, and latching it in place.
17 Disengage from the ESD wrist strap.
18 Set the BTS on the Mounting Plate and secure using 3 M6 screws and isolation washers. Torque to 5
N–M (44 in–lbs).
table continued on next page
9