Motorola SC 4812ET RF Hardware Installation Manual page 174

SC 4812ET to SC 4812ET DC Power Sharing and Frame Installation
– continued
Step
8 Insert the cable into the barrel of the right angle crimp lug.
9 Crimp the lug to the cable.
10 Repeat steps 8–9 for the remaining power cable(s).
NOTE
Be sure to observe the polarity of each cable as you install the cables to the power input studs on the
RF Cabinet.
11 Assemble the power cable to the studs as follows:
11a – Place the cable lugs over the power input studs.
11b – Place the M10 flat washer over the stud and on top of the lug.
11c – Place the M10 lock washer over the stud and on top of the flat washer.
11d – Place the M10 nut over the stud and on top of the washer.
! CAUTION
F
Exceeding the torque limit may damage the stud.
11e – Torque (tighten) nuts to 11–12 N–m (100–110 in–lbs).
12 Repeat steps 11a through 11e for the remaining power cables.
13 Position the lug cover over the base and lock the cover (it will snap) onto the enclosure base.
14 Slide each grommet down the cable and over the cable entry hole.
15 Repeat step 5 through step 14 for the Power Cabinet connections.
16 Verify that DC polarity between the RF and Power Cabinet is correct.
174
Table F-3: Procedure to Install DC Power Cables
Checks
Check that all AC & DC breakers are turned OFF in both the SC
4812ET RF and Power Cabinet.
Check that the DC Power cables between the Power and RF Cabinets are
connected with the correct polarity.
Confirm that split phase 240/120 AC supply is correctly connected to the
AC Load Center input in the SC 4812ET Power Cabinet.
SC 4812ET RF and Power Cabinet Hardware Installation Manual
TM
Action
CAUTION
Failure to connect the proper AC feed will damage the
surge protection module inside the AC Load Center.
DRAFT
Apr 2001
V0F.02