Cisco 12416 Installation And Configuration Manual page 368

Removing and Replacing the DC-Input Power Shelf
Step 11
Step 12
Caution
Step 13
Figure 7-47 Reinstalling the Source DC Power Cable Cover
Step 14
Step 15
Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
7-76
Power on the source DC circuit breakers for the PEMs.
Verify the polarity and voltage readings across the pairs of positive and negative
terminal studs:
All voltage readings should be –48 to –60 VDC
•
If any of the voltage readings are not within the specified range, do not proceed.
Check for correct polarity and DC source voltage.
Reinstall the power cable cover
Cover standoff
Power off the source DC circuit breakers for the PEMs.
Install all of the DC PEMs as described in the
PEM" procedure on page 60
(Figure 7-47).
+ –
Cover with slotted screw hole;
fastens to standoff in middle
of cable connection area.
beginning with
Chapter 7 Maintaining the Router
Ground
"Removing and Replacing a DC
Step 5.
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