Chapter 7: Router Control Module (RCM)
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
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LED Status Indicators
The following is a table of LED states and the conditions they represent. All of these LEDs are found on the front panel of
the RCM.
Table 21.
RCM Status Descriptions
LED
State of LED
Significance
Power
Solid Green
Power is on
Blinking Green
Power is turned off by software.
Active
Solid Green
Active RCM
Off
Standby RCM
Red
RCM is OOS and initializing
SFP Ports
Solid Green
Connectivity established
Amber
Active traffic being passed
XFP Ports
Solid Green
Connectivity established
Amber
Active traffic being passed
Crossover Link Indicator
Solid Green
Link is active
RCM Crossover Connector
If you plan to run in duplex mode (applicable to C4 CMTS only), you must purchase one (1) CMTS Router Control Module-
Crossover Connector (Part Number 722891).
The crossover connection provides the RCM-to-RCM inter-card data transport. These are the important operating
characteristics:
The traffic over the Ethernet interfaces of the two cards functions in an active-active mode, meaning that both cards
simultaneously forward traffic over their respective Ethernet interfaces.