3–6
DECbridge 500/600 Problem Solving
3.3.2.1
Removing Logic Modules
To remove any of the four logic modules, refer to Figure 3–3 and follow these steps:
NOTE
Before removing the AP/AP2 module, record the exist-
ing switch settings on that module so that you can set the
switches on the replacement module to the appropriate
positions. Also, use the network management software
to record bridge parameter settings and the firmware
version prior to replacing the AP/AP2 module.
CAUTION
!
The logic modules have components on both sides of the
module. Removing or inserting a module at a slight
angle can damage it.
1. Remove ac power to the bridge and disconnect all interface cables (Section
3.2).
2. Attach the ESD ground strap to your wrist and to the unit.
3. Using a #2 Phillips-head screwdriver, loosen the quarter-turn fastener on each
side of the module. Push in and turn the screwdriver one-quarter turn counter-
clockwise. The fastener will pop out when unlocked.
4. Swing the two ejector levers on the module outward to the unlocked position.
5. Carefully slide the module straight out of the card cage. Be careful not to let
the components on the bottom of the module scrape against the ejector levers
of the module below it.
