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Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide
OL-1984-06
Chapter 3 Installing the Cisco RF Switch
Connecting Power
Step 7 Tighten the receptacle screws and nuts for the +48V and –48 VDC input leads.
Step 8 Run the +48V and –48V leads through the strain-relief on the top of the power supply faceplate and
connect the leads to the DC power supply (+48V and –48V).
Step 9 Adjust the voltage on the DC power supply to approximately –48 VDC.
Note Wait until the system has been cabled before turning on the power supply. See the “Powering On the RF
Switch” section on page 5-26.
Figure 3-9 Connecting DC Power
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Strain
relief