Specifications

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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
Chapter 5 Maintenance
Replacement Procedures
Step 2 Remove the 26 M3 x 8-mm screws around the backplane perimeter using a No. 2 Phillips screwdriver.
(See Figure 5-34.) Save the screws.
Figure 5-34 Backplane Module—Rear View
Step 3
Remove the backplane and place it in an ESD shielding bag. Use the replacement backplane carton to
return the faulty backplane to the factory, if necessary.
Replacing the Backplane
To replace the backplane complete the following steps and reverse the procedures used to remove cables
and components. When you finish, use a Site Log sheet to record service maintenance.
Step 1 Unpack the new backplane module (MAS-5814BP=) from the ESD shielding bag and install the
backplane in the same position as the one you just removed.
Step 2 Reuse the screws used to secure the old backplane and tighten the screws using a No. 2 Phillips
screwdriver. (See Figure 5-34.)
Step 3 Connect the cable connection to the dial-shelf blower assembly. (See Figure 5-33.)
Step 4 Replace the back cover. Reuse the screws used to secure the back cover and tighten the screws using a
No. 2 Phillips screwdriver. (See Figure 5-32.)
Step 5 Replace the dial-shelf filter module and tighten the captive screws on the front panel using a 1/4-in.
flat-blade screwdriver. If using the AC-input power shelf, connect the monitor cable. The DB-9
connector connects to the filter module; the DB-25 connector connects to the optional AC-input power
shelf. (See Figure 5-26.)
Step 6 Replace the dial-shelf PEMs and tighten the captive screws on the front panels using a 1/4-in. flat-blade
screwdriver. Then reconnect the power cables.
Step 7 From the front of the dial shelf, reseat the dial-shelf controller cards and the feature cards using the
ejector levers and tighten the panel fasteners with a number 2 Phillips screwdriver. (See Figure 5-28 and
Figure 5-29.)
Step 8 Power ON the main power source circuits for the Cisco AS5800.
H11285
Backplane
perimeter
screws
Backplane
perimeter
screws
Card connectors
(rear view)
Connector to
blower assembly
Capacitors