A-3
Cisco AS5400 Universal Gateway Chassis Installation Guide
OL-2847-02 0A
Appendix A Replacing Memory Components
Removing the Chassis Cover
Figure A-1
DC Power Supply Connections
a.
Loosen the six locking screws for the negative, return, and ground connections on the DC power
supply terminal blocks.
b.
Remove the -48 VDC wires from the terminal block negative connectors (-).
c.
Remove the 48 VDC wires from the terminal block positive connectors (+).
d.
Remove the safety ground (green wires) from the terminal block ground connectors.
Step 3
Remove all interface cables from the rear panel of the chassis.
Step 4
Place the chassis so that the front panel is facing you.
Step 5
Remove the four screws on the chassis cover. (See
Figure A-2
.)
Caution
Do not connect a 48 VDC wire to chassis. A single-point ground is recommended at the
power distribution rack.
On/off
switch
LEDs
31628
Terminal
block
Mounting screw
Mounting screw
Mounting
screw
IN OK
DC OK
OTF
IN OK
DC OK
OTF
LEDs
Terminal
block
Strain-relief
clamps
Strain-relief
clamps