Juniper Networks G10 CMTS manual Chassis Versions, Midplane Domains

Chassis

Figure 10: Midplane Domains

Domain B

Domain A

•

•

•

•

•

•

•

•

•

DOCSIS Module

1

DOCSIS Module

2

DOCSIS Module

3

DOCSIS Module

4

NIC Module

5

Module		Module
	Comm
Control	Channel	Control
	Host
Chassis		Chassis
	Controller

67

Midplane Slot Numbers

(front view)

NIC Module

9

DOCSIS Module

10

DOCSIS Module

11

DOCSIS Module

12

DOCSIS Module

13

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

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.

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.

!Ability to read the chassis version with the show chassis hardware detail command.

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Hardware Component Overview 25