Installation Instructions

R20 1X UBS Macro B T S Hardw are Installation T ask 15: Connecting -48 V DC P ower
Figure 2 -23 48 V DC power input cable (CC) connector and connection to PSM shelf
ti-cdma-05696.eps
-48 VDC PSM SHELF
(rear view, shown partially cut away)
Connector
Housing (Blue)
(+)
(-)
(-)
???
Crimp-on
Contact/Lugs
-48 VDC Power
Input (Blue)
(+)
2-Wire -48 VDC
Power Cable
(Customer Supplied)
BLACK Wire
(Typical)
BLUE Wire
(Typical)
+27 VDC Power
Output Cable (To PDU)
Cable Clamp
Procedure
P erforming T ask 15 as given in Procedure 2 -9 .
• 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 .
68P09283A62 -3 2 -63
PRELIMINARY A UG 2007