Juniper Networks G10 CMTS manual G10 Cmts Hardware Overview

G10 CMTS Hardware Overview

Rear Features ! HFC Connector Module—Module that functions as the DOCSIS Module’s physical access to both the NSI and the HFC interfaces on the rear of the chassis.

!Switched I/O Module—Provides the same functions as an HFC Connector Module, but provides four additional upstream F-connectors for the HFC cabling.

!NIC Access Module—Module that provides the network connections between the NIC Modules and the HFC Connector Modules.

!Hard Disk Module—Contains the system nonvolatile memory implemented as a hard disk. This module is installed opposite the Chassis Control Module.

!Rear fan tray—Fan assembly that forces air upward through the rear of the chassis.

!Rear fan tray LED—LED that shows the status of the rear fan tray.

!Air management panel—Panel installed over an unused module slot to redirect the air flow through the chassis and to reduce EMI emissions.

!Air exhaust—Panel along the top and rear of the chassis where air is expelled from the chassis for cooling.

!AC power transition module—Rear module that distributes the externally supplied AC power to the midplane.

!AC power receptacle—AC power cord receptacle on AC power transition module.

!AC power switch—AC power On/Off switch that resides on the AC power transition module.

!DC power transition module—Rear module that distributes the externally supplied DC power to the midplane.

!DC power receptacle—DC power cord terminal block on DC power transition module.

!Chassis ground nuts—Location where the earth ground connection to the chassis is made.

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System Overview 17