Beta Draft Confidential
Installing and Removing Modules
Replacing the SPA Module
6-8
4/5/03
CBX 500 Multiservice WAN Switch Hardware Installation Guide
Replacing the SPA Module
The SPA always occupies Slots 1 and 2 in the back of the switch.
To replace the SPA module:
1. Put on the antistatic wrist strap (provided in the accessory kit) and plug it into the
ESD grounding jack on the switch.
2. Notify all users that the switch is about to be powered down, and then power
down the switch.
3. From the front of the switch, disengage the SP module (and redundant SP module,
if one is installed) as follows:
a. Using a #2 Phillips-head screwdriver, loosen the thumbscrews located on the
top and bottom of the SP module. Failure to use a #2 Phillips-head
screwdriver may damage the screw heads.
b. Locate the ejector lock at the top of the SP module. Then, slide the ejector
lock down to disengage the card. The SP is now disconnected from the
network.
c.
Lift the top and bottom card ejectors simultaneously to disengage the module
from the backplane. Lift both ejectors simultaneously to avoid damage to the
module.
d. Slide the SP module out of the chassis about one inch (2.54 cm).
4. From the back of the switch, disconnect any external cables and wires from the
existing SPA module. Tag the cables and wires for identification and reconnection.
Note – Disengage the SP modules from the SPA before removing the SPA module
from the switch.
Warning – The following procedure may make the device susceptible to electrostatic
charge.
