Determining the Operating Status
Connecting Power to the Switch
Beta Draft Confidential
CBX 500 Multiservice WAN Switch Hardware Installation Guide
4/5/03
5-9
Connecting Power to the Switch
The CBX 500 is powered by either two AC or two DC power supplies. You can also
install a third power supply for redundancy, to ensure continuous power in the event of
a circuit or power-supply failure.
Switches with AC Power Supplies
To connect the switch’s AC 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
.)
2. Attach the main power cords to the switch by plugging the AC power cords into
the Power 1 - IEC 320 and Power 2 - IEC 320 inlets at the rear of the switch.
For a redundant power supply, plug the cord into the Power 3 - IEC 320 inlet.
3. Insert the main power cords into one or more of the cable strain-relief clamps, and
ensure that there is some slack in the power cords between the clamp and the IEC
320 inlet.
4. Verify that the power switch on each power supply is in the OFF position.
5. Plug the main power cords into a 3-wire grounding receptacle. To ensure
continuous power in the event of an electrical circuit outage, you should plug each
power cord into receptacles on different circuits.
Fan Assemblies
Fans
75
Table 5-7.
Power Consumption by CBX 500 Components (Continued)
Components
Power Consumption (Watts)
Warning – Before connecting the AC power cords, see the section,
“Electronic/Electrical Requirements,”
in Chapter 2. See also
Appendix C
for circuit
regulatory information.
