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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Slot 0 is equipped with a 12U Spare PIC
Figure 9:
C4 CMTS Chassis (rear view)
Midplane
Between the front and back slots is the midplane of the chassis. The midplane connects the front modules to the rear
modules. The midplane is a necessary point of communication for all modules inserted in the C4 CMTS. The midplane is
used as follows:
By the power conditioning modules to provide power to the rest of the system
By the SCMs and RCMs to exchange control information and packets
By the CAMs (client modules) to pass packets to the RCM
By the RCMs to pass packets to the CAMs and SCMs.