User's Manual Part 1

BTS DC Power Cabling – continued
MAY 2004
4-55
1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU
PRELIMINARY
Connect DC Power to TME
Procedure
Use the following procedure in Table 4-28 to connect the DC voltage
input cable to the TME. Refer to Figure 4-36 or Figure 4-37.
Table 4-28: Procedure to Connect DC Power to the BTS
Step Action
1 Ensure that DC power from PDE is disengaged (ciruit breaker set to OFF).
2 Route DC power cable through conduit to TME POWER Cable hole location.
3 Ensure that 1U and TME circuit breakers are disengaged (pulled out).
4 Remove protective cover from PDA DC power connector.
5 If not already done, trim insulation back about 15 mm (1/2–in) on each wire.
6 Connect the “+” wire (red) to the +0 VDC terminal on PDA.
7 Connect the “–” wire (blue) to the –48VDC terminal on PDA.
8 Replace protective cover.
Figure 4-36: TME Power Distribution Assembly for –48VDC
ti–cdma–wp–00348–v01–ildoc–ah
Ground
Location
1U
3A Circuit
Breaker
TME
25A Circuit
Breaker
DC Power
Connection
DC Power from
source
SURGE
SUPPRESSOR or
LIGHTNING
ARRESTOR
–48VDC
+0VDC
NOTE:
1 A surge suppressor is recommended
between the BTS and the DC power
source.
4