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User's Manual Part 1

ManualsBrandsNokia Solutions and Networks ManualsElectronics1X-EVDO SC480 BTS Microcell Base Station Transmtr
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Compact Combined Linear Power Amplifier Installation – continued
Jun 2004
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1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
DRAFT
Outdoor cCLPA Installation
The cCLPA is mounted on a bracket assembly and secured to a pole.
Placement of cCLPA is up to the customer. The cCLPA is already
weatherproofed, so there are no special weather related precautions
required for outdoor installation. The maximum allowable TX cable loss
(including surge arrestor) from the cCLPA to the BTS is 2.0 dB for 800
MHz, and 3.0 dB for 1.9 GHz. The maximum allowable RX cable loss
(including surge arrestor) from the cCLPA to the BTS is 3.0 dB.
The 800 MHz cCLPA operates on –60 t0 –40 VDC supplied by the
Power Distribution Enclosure (PDE). The 1.9 GHz cCLPA operates on
+20 to +35 VDC supplied by the Power Distribution Enclosure (PDE).
Pole or Wall Mounting cCLPA
Follow the procedure in Table 4-12 to pole or wall mount the cCLPA.
Table 4-12: Procedure to Pole or Wall Mount the cCLPA
Step Action
1 Determine where on the pole or structure the cCLPA will be mounted. Consult site configuration
documentation as required.
2 For wall or other such structure, proceed to step 2a. For pole mount, proceed to step 2c.
2a Using the Wall Mounting Bracket as a template, drill starter holes, using the wider of the two sets
present. Screw in one each M6 anchor bolt in the upper holes.
2b Hang Wall Mounting Bracket on anchor bolts. Install remaining anchor bolts and secure bracket by
tightening the 4 M6 anchor bolts. Torque anchor bolts to 10 N–M (88 in–lbs). Proceed to step 3.
2c Center the Wall Mounting Bracket on Pole Mounting Bracket Assembly and install the 4 M6 screws in
the narrower of the two sets of holes present. Secure bracket by tightening the 4 M6 screws. Torque
screws to 10 N–M (88 in–lbs). Proceed to step 3. See Figure Figure 4-13.
3 Install two M6 screws in the top holes of the Wall Mounting Bracket.
n WARNING
It is recommended that two people hang the cCLPA onto the Wall Mounting Bracket.
4 Hang cCLPA and install remaining 4 M6 screws. Secure cCLPA to bracket by tightening screws.
Torque screws to 10 N–M (88 in–lbs).
5 If not already done, remove handles from cCLPA.
6 Perform Table 4-7 to install the ground cable.
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