![](/images/new-backgrounds/1295370/295370155x1.webp)
6 Maintaining Your System | Quick Reference Guide | |
|
|
|
|
|
|
8To insert the replacement, once the module is properly seated, firmly push the center of the module until the connectors on the module lock into place, and the module is attached to the rear of the carrier. For proper engagement of the connectors, the module must be inserted straight into the carrier. A slight click indicates the connectors are engaged.
CAUTION:
Do not force the module. Use the carrier shelf as a reference and do not tilt, slant or rotate the module. If the module does not insert easily, remove it, clear any obstruction, and reinsert it.
9Connect the line and extension cords one at a time, making sure to place the correct cords into their corresponding jacks on the new module.
10Reconnect the power cord.
CAUTION:
The power cord should hang straight down from the connector, flush against the plastic case. Do not install the power cord at an angle to the case or with a loop in it.
11Move the carrier’s On/Off switch to the “On” position
12Check that all green lights on the fronts of the modules are lit:
•If a single light is out, power down the control unit, reseat the module, and power up the control unit.
•If multiple lights are out, power down the control unit, reseat the leftmost module that has a light out, and power up the control unit.
•If the lights are still out, call for support as instructed on the inside front cover of this guide.
13Make sure all modules are seated properly. (For Release 3.0 and earlier systems, the cover will not fit if the modules are not seated properly.) If you have a system of Release 4.0 or later, you are finished with this procedure. If you have a system of Release 3.0 or earlier, continue with Step 14.
14To replace the cover, grasp it by its upper edges and hold it squarely over the control unit. Place the cover over the modules and make sure it fits firmly in place.
68 Replacing Modules