Chapter 5: C4c CMTS Installation Requirements
STANDARD Revision 1.0
C4® CMTS Release 8.3 User Guide
© 2016 ARRIS Enterprises LLC. All Rights Reserved.
140
One (1) Router Control Module (RCM)
From one to five 16D or XD CAMs and one to five 12U CAMs in the following combinations:
Table 15.
DS and US CAM Combinations in the C4c CMTS
CAMs
Channels
US:DS Ratio
12U
16D or XD
US
DS
1
1
12
16
.75 to 1 (3 : 4)
5
1
60
16
3.75 to 1 (15 : 4)
4
2
48
32
1.5 to 1 (3 : 2)
3
3
36
48
.75 to 1 (3 : 4)
2
4
24
64
.375 to 1 (3:8)
1
5
12
80
.15 to 1 (3 : 20)
Module Types and Chassis Slots—Front View
The C4c CMTS chassis contains eight horizontal slots. These slots are equipped for the following modules (sometimes
referred to as front cards).
One Router Control Module (Slot 17)
One System Control Module (Slot 19)
One to six Cable Access Modules (in a mix of upstream and downstream CAMs) (Slots 10 thru 15)
Note: The slot numbering on the C4c CMTS is not the logical slot order of one through eight but is numbered to
correspond to the C4 CMTS slots. This will help to maintain consistency with CLI command functionality as well as helping
in the case of a chassis upgrade from a C4c to a C4 CMTS.
