Installation Instructions

R20 1X UBS Macro B T S Hardw are Installation T ask 14: Connecting +27 V DC P ower
Figure 2 -23 +27 V DC power input cable (DC) connector and connection to PDU
ti-cdma-05694.eps
PDU
(rear view, shown
partially cut away)
Connector
Housing
(Orange)
(+)
(-)
(-)
Crimp-on
Contact/Lugs
+27 VDC Power
Input (Orange)
RED Wire
(Typical)
(+)
2-Wire +27 VDC
Power Cable
(Customer Supplied)
BLACK WIRE
(Typical)
Cable Clamp
Procedure
P erform the T ask 14 as given in Procedure 2 -8 .
• Do not wear a wrist str ap when servicing the power supplies or power distribution
cabling.
• Ensure that the source for the DC power is in the OFF position.
• Ensure that all of the PDU circuit break ers are OFF .
Procedure 2 -8 Procedure for T ask 14
1
Ensure that the BTS ground cable (DD) is connected between the rack and
the Master Ground Bar (refer to T ask 3).
Continued
68P09283A62 -2 2 -61
PRELIMINARY A UG 2007