Technical data

Using the Centillion 100 ATMSpeed/155 Switch Modules and Media Dependent Adapters
2-2 893-01047-A
Installing the ATMSpeed/155 Module
You can insert or remove an ATMSpeed/155 module from a chassis while the
power is on without interrupting service in the other modules. This ability is
referred to as “hot-swapping.”
To install and secure the module in the chassis, follow these steps:
1. Remove the filler panel from the chassis slot where you intend to install
the module.
Using the medium flat-tip screwdriver, loosen the two captive retaining screws
on the filler panel until they pop free of the chassis. Rotate the left and right
inserter/extractor levers away from the center of the filler panel to their
protruding positions and remove the filler panel (see Figure
2-1).
Caution: Centillion 100 modules use electronic components that are sensitive
to static electricity. Static discharge from your clothing or other items around
you, even at levels that do not create a spark, can cause damage.
You should take all possible precautions to prevent static discharge damage
when working with printed circuit boards. Keep each board in its protective
conductive bag until you are ready to install it. Before you touch a printed
circuit board, be sure to put on a grounded antistatic wrist strap and leash to
free yourself of static.
If you lack a grounded antistatic wrist strap and mat, be careful to stand in one
place where you work (so you do not generate static electricity by friction) and
to free yourself of static by touching the metal of a grounded chassis before
handling a printed circuit board.
Note: ATMSpeed/155 modules can be hot inserted in a chassis at any time.
However, before removing an active module from the Centillion 100 chassis,
either unplug all port cables or disable all ports on the module. This step
deactivates the module. For additional information, see “
Removing a Module”
and “
Replacing a Module” later in this chapter.