Juniper Networks G10 CMTS - Manual (Page 41)

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Hardware Component Overview
Chassis
25
Figure 10: Midplane Domains
Chassis Versions
There are two versions of the chassis—version 1 and version 2. Version 2 provides all the
functions provided by version 1, but contains a new midplane that provides the following
features:
! Support for eight RF upstream ports from a SIM to its corresponding DOCSIS Module.
! Ethernet wiring between DOCSIS Modules and NIC Modules that eliminates the need for
external NIC Access Module cables.
! Ability to read the chassis version with the show chassis hardware detail command.
Midplane Slot Numbers
(front view)
1 2 3 4 5 6 7 9 10 11 12 13
DOCSIS Module DOCSIS Module DOCSIS Module DOCSIS Module DOCSIS Module DOCSIS Module DOCSIS Module DOCSIS Module NIC Module NIC Module
Chassis Contr
ol Module
Chassis Contr
ol Module
Domain A
Domain B
Comm
Channel
Host
Controller
When Ethernet wiring within the new midplane is used:
! You must install a NIC Access Module opposite each
installed NIC Module for proper Ethernet signal
termination.
! You must not connect NIC Access Module cables to
the NIC Access Module.