Juniper Networks G10 CMTS manual NIC Module Physical Dimensions, NIC Module Connectors

NIC Module

•Functional Characteristics

•
•	The NIC Module contains a 6U (267 mm) x 340 mm card with a 4 HP (20 mm), single-wide
•	front panel. The module installs from the front of the chassis and is hot swappable.
•
•	The NIC Module provides the network-side interface of the G10 CMTS. It provides two Gigabit
•	Ethernet and 24 Fast Ethernet switch ports (eight ports are used for DOCSIS Module
•	connectivity, four ports are for general purposes, and 12 ports are reserved for future use).
•	The NIC Module aggregates all upstream traffic from the DOCSIS Modules and routes it to
•	one or more of the switch ports. The NIC Module distributes all downstream traffic from the
•	switch ports to the DOCSIS Modules. See “HFC Connector Module” on page 50 and
•	“Switched I/O Module” on page 53 for more information on traffic routing.
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•	The NIC Module is powered by a 266 MHz MPC8240 processor and contains a 64 MB SDRAM
•	buffer, 32 MB of system memory, and a 32.5 MB flash memory, all delivering 6.6 million pps
•	switching capacity.
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•Physical and Electrical Characteristics

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•	This section describes the physical dimensions, electrical characteristics and components of
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	the front panel. See Table 15 on page 44 through Table 21 on page 47
•
•	The NIC Modules install from the front and occupy midplane slots 5 and 9. To maximum the
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	number of MAC addresses supported, we recommend you use one NIC Module for each of
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	the two domains (A and B) of the chassis.
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•	Each NIC Module consumes 36 watts maximum power.
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•Table 15: NIC Module Physical Dimensions

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	Specification	Value
•
•	Height	233 mm (9.2 in.) module
•		262 mm (10.3 in., 6 U) front panel
•	Width	20 mm (0.8 in.)
•		(front panel width)
•	Depth	340 mm (13.4 in.)
•		(excluding front panel and cPCI connectors)
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•Table 16: NIC Module Connectors

•	Connector Label	Function
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	0 and 1	Duplex Gigabit Ethernet interface converters with SC optical connectors, or HSSDC serial
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		connector for 1000BT mode.
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	COM	RS-232 DB-9 connector for serial interface.
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44 JUNOSg 3.0 G10 CMTS Hardware Guide