Powering Off the Cisco AS5800
Cisco 5814 Dial Shelf Packaging Replacement Instructions C-5
FigureC-4 AC-Input Power Shelf
Step4 Power OFF the central office main circuit breaker.
Caution If you are using the optional AC-input power shelf, you must power off both AC-input
power supplies before you disconnect the DC cables from the DC terminal blocks.Step5 Loosen the screws in the DC-input power terminal blocks and the alarm terminal blocks
using a 1/4-in. flat-blade screwdriver, an d dis connect power cables and alarm cables to the dial shelf PEMs. FigureC-5 shows the location of the terminal blocks.FigureC-5 PEM DC Terminal Block
Step6 Disconnect the DC power cables from your DC power source.
The last two steps refer to the optional AC-input power shelf. If you are using a DC power source, you can skip Step7 and Step 8 and proceed to the section “Preparing to Repackage the Cisco5814 Dial Shelf.”H11098
AC
1 POWER 2
CB 2
PWR OK
FAULT
TEMP
I LIM
PWR OK
FAULT
TEMP
I LIM
CB 1
Power
switches
Hex nut Red Black
Ground
–48V–48V
RTN
CNCNO
CNCNO
–48V–48V
RTN
H11158
–48V –48V
RTN
DC terminal block
PEM
BUS
—
terminal
stud
BUS
+
terminal
stud
Red
Black
Monitor
cable