Installing the CiscoAS5800 3-15
Connecting Cables to the Dial Shelf
Once the dial shelf has been rack-mounted and all components have been reinstalled into the dial
shelf, DC power connections from a DC source or AC-input power shelf can be connecte d to the dial
shelf. The monitor connection from an AC-input power shelf should a lso be connected at this stage.
The following sections assume the use of the opt ional A C -input po we r shelf. I f yo ur ins tall ation wil l
use a DC power source, see the “Connecting to a DC Power Source” section on page3-23.
Connecting the AC Power Cables
You need to connect all cables between the AC-input power shelf and the dial shelf before you
connect the power shelf to your AC power source. You also need to install the provided electrical
connection safety cover at the rear of the power shelf before you power up the system. For detailed
cabling specification tables, refer to AppendixA, “Cisco AS5800 Specifications.”
Warning This unit has more than one power cord. To reduce the risk of electric shock, disconnect
the two power supply cords before servicing t he unit. To see translations of the warnings that a ppear
in this publication, re fe r to the Regulatory Compliance and Safety Information document that
accompanied this device.
Grounding the AC-Input Power Shelf to the Dial Shel f
For detailed cabling specificat ion information , refer t o AppendixA, “Cisco AS5800 Specifications.”
To attach the ground cable between the AC-input power shelf and the dial shelf, complete the
following steps:
Step1 Thread an M4 screw through one hole of the double ring lug on the other end of the
ground cable; then thread the screw into the threaded pemnut in the underside of the dial
shelf chassis and partially tighten the screw. (See Figure3-11, upper chassis or
Figure3-12 for an enhanced power shelf.)
Step2 Align the second ring lug hole with the second pemnut in the underside of the dial shelf
chassis and thread a screw through the hole.
Step3 Using a No. 2 Phillips screwdriver, tighten both screws.