Juniper Networks G10 CMTS manual Physical and Electrical Characteristics, Docsis Module LEDs

DOCSIS Module

•Physical and Electrical Characteristics

•
•	This section describes the physical and electrical characteristics of the DOCSIS Module. See
•	Table 8 through Table 10.
•
•	The DOCSIS Module installs into the chassis from the front and spans two midplane
•	connector columns. The module includes the RF upconverter and modem subassemblies.
•	The module connects to the midplane through connectors J1 through J5. See “Card Cage and
•	Midplane” on page 21 for related information.
•
•	The front panel connectors are not used.
•
•	Each DOCSIS Module with its subassemblies consumes 120 watts maximum power.
•
•

•Table 8: DOCSIS Module Physical Dimensions

•	Dimension	Value
•
	Height	233 mm (9.2 in.) card
•
		262 mm (10.3 in., 6 U) front panel
•
	Width	40 mm (1.6 in.)
•
•		(front panel width)
•	Depth	340 mm (13.4 in.)
•		(excluding front panel and cPCI connectors)
•
•

•Table 9: DOCSIS Module Operational Characteristics

•

•		Characteristic		Downstream		Upstream
•
		Frequency Range		91 through 857 MHz		5 – 42 MHz
•
		Power level		+50 through +61 dBmV		+8 to +55 dBmV (16QAM)
•
				(adjustable)		+8 to +58 dBmV (QPSK)
•
•		Modulation		64QAM and 256QAM		QPSK, 16QAM
•
		Transmission protocol		DOCSIS MPEG		Frequency-agile TDMA
•
		Symbol rate		5.057 Mbaud (64QAM)		160, 320, 640, 1280, and 2560
•
				5.361 Mbaud (256QAM)		(user configurable)
•
•		Data rate (Max.)		40 Mbps/interface		10 Mbps/interface
•
		Interfaces		4		8 or 16 (depending on the DOCSIS Module model)
•
•
•	Table 10: DOCSIS Module LEDs
•
•
		LED Label	Color		Function
•
•		CPCI	Green		On—cPCI bus is active.
•					Off—No activity on bus.
•
		Test	Green / Red		Green Blinking—Self-test running.
•
					Green On—Self-test passed.
•
					Red On—Self-test failed.
•
•					Off—Self-test not running.
•
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36 JUNOSg 3.0 G10 CMTS Hardware Guide