Determining the Operating Status
Connecting Power to the Switch
Beta Draft Confidential
CBX 500 Multiservice WAN Switch Hardware Installation Guide
4/5/03
5-11
Switches with DC Power Supplies
To connect the switch’s DC power supplies to a power source:
1. Verify that the correct power source is available for the CBX 500 power supplies.
(See
Chapter 2, “Specifications and Safety Warnings,”
for power specifications.)
Figure 5-4.
Connecting the -48 VDC Power Supplies
Warning – Before connecting the power cords, see the section,
“Electronic/Electrical
Requirements,”
in Chapter 2. See also
Appendix C
for circuit regulatory information.
PO
WER FEED B
–48VDC
R
TN
PO
WER FEED B
–48VDC
R
TN
PO
WER FEED A
–48VDC
R
TN
Secondary Power Supply
Connectors
Ground
Cable Strain Relief Clamps
Primary Power Supply
Connectors