Replacing the Dial Shelf Components
Cisco AS5800 Universal Access Server Hardware Installation Guide3-12
Replacing the Power-Entry Modules
To reinstall the PEMs, comple te the following steps. (Refer to Figure3-9 to locate the PEMs in the
dial shelf.)
Step1 Grasp the PEM handle and carefully align the PEM with the DC-input power supply bay.
Step2 Slide the PEM into the power supply bay until it is ful ly seated and connected to the
backplane connectors.
Step3 Using a 1/4-inch flat-blade screwdriver, tighten the captive screws on the PEM front
panel.
Step4 Plug the alarm cables into the bell ala r m terminal block. (See Figure3-9.)
Step5 Repeat Step 1 to Step 4 for the other PEM.
Figure3-9 Replacing a PEM
This completes the procedure for replacin g a PEM in the dial shelf.
LEDs
48V48V
RTN
CNCNO
POWER
MISWIRE
CNCNO
POWER
MISWIRE
48V48V
RTN
H11077
DC-input power
terminal block
Captive
screw
Captive
screw
Bell alarm
terminal block
Filter module
PEM