Juniper Networks G10 CMTS manual JUNOSg 3.0 G10 Cmts Hardware Guide

G10 CMTS Hardware Overview

•	Following is a brief explanation of each feature shown in Figure 4 through Figure 7:
•

•Front Features ! DOCSIS Module—Module that contains the Broadband Cable Processor ASIC and resides

•	between the network-side interface (NSI) and the hybrid fiber/coax (HFC) interface.
•	! NIC Module—Module that provides the Gigabit Ethernet interface and the Fast Ethernet
•
•	switching functions for the network-side interface.
•	! Chassis Control Module—Module that performs management and monitoring functions.
•
•	! Module ejector rail—Rail into which a module’s ejector tabs fit when a module is
•
•	installed in a slot.
•	! ESD strap connector—Location where you can insert an ESD ground strap.
•
•	! Air intake—Slotted openings along the front (removable) and sides of the chassis where
•
•	air is drawn into the chassis for cooling the installed modules and power supplies.
•	! Air intake faceplate—Slotted removable panel that covers the two front fan trays.
•
•	! Air intake faceplate clip—Retainer clip used to mount the air intake faceplate.
•
•	! Front fan tray—Fan assembly that forces air upward through the front of the chassis.
•
•	! Front fan tray LED—LED that shows the status of the front fan tray.
•
•	! Power supply ejector rail—Rail into which the power supply ejector tabs fit when a
•
•	power supply is installed in a bay.
•	! Midplane—Passive electrical interconnecting device for all modules in the chassis.
•
•	! Air management module—Module installed in an unused module slot to redirect the air
•
•	flow through the chassis and to reduce EMI emissions.
•	! Card guide—Used to align a module or power supply while it is being inserted into its
•
•	slot or bay.
•	! Power supply—Converts AC or DC power supplied through the power transition modules
•
•	into the DC voltages required by the modules.
•	! Power supply faceplate—Panel along the top of the chassis that covers the power
•
•	supplies.
•	! Power supply faceplate clip—Retainer clip used to mount the power supply faceplate.
•
•	! Power supply bay—Chassis bay in which a single hot-swappable power supply is
•
•	inserted.
•	! Power supply filler panel—Panel covering an empty power supply bay.
•
•	! Cable channel—Channel through the top of the chassis that is used to route the network
•
•	cables from the rear of the chassis to the front.
•	! Cable guide—Guide used to route the network cables between the cable channel and the
•
•	lower opening in the power supply faceplate.
•
•
•

16 JUNOSg 3.0 G10 CMTS Hardware Guide