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Installing and

Removing I/O

Modules

Installing an I/O

Module

You can install V.34 (analog), ISDN-BRI or a combination of V.34 and

ISDN-BRI modules in the RAS 1500 or RAS 1500 Expansion unit.

Use the following steps to install an I/O module:

CAUTION: The modules are not hot-swappable. Power off the unit

before installing, removing, or exchanging the module. Failure to

do so could damage the modules.

1 Before installing the I/O module, you must remove power from the unit

being upgraded. Remove the AC power cord from the back of the RAS

1500 Base Unit or RAS 1500 Expansion unit.

2 Remove the blank plate from the I/O module slot.

3 Unpack the I/O module from the box and remove the protective covering.

WARNING: Do not plug telephone cables into the I/O module until it is

installed in the unit. It could result in electric shock.

4 Position the I/O module in front of the empty slot so it is ready to slide in.

I/O modules should be installed in the left slot (slot 1) first.

5 Slide the I/O module into the slot until it is firmly in place.

6 Using the thumbscrews, screw the I/O module in place.

Installing and Removing I/O Modules