Chapter 4: C4 CMTS General Installation Requirements
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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Ejector Levers
The figure below illustrates the ejector levers on the module faceplates. Once installed, the module is locked in place. The
red button must be pushed in on each ejector lever mechanism before it will release the module. Always operate both (top
and bottom) ejector levers at the same time when seating or releasing the module.
Figure 11:
Ejector Levers
Fan Trays
The C4 CMTS contains three Fan Trays (also called modules) numbered 0, 1, and 2. Each tray contains a front and rear fan.
A failing fan is easily identified by the Fan Status LED on the Fan Tray. Maintenance personnel can replace the failed Fan
Tray without shutting down the entire system.
These fans cool the system components by forcing air from the lower portion of the chassis through all system modules
and exhausting it through the upper rear portion of the chassis.