Juniper Networks ERX-705, ERX-1410, ERX-1440, ERX-700 manual Safety Guidelines ERX Edge Routers

Safety Guidelines 4-3

ERX Edge Routers

	Alarm leads	SRP I/O module
		(slot positions 6 and 7)
External timing ports (Europe)
External timing ports (North America)			CT3 I/O module
			(slot 5)

						SRP I/O
	OC3	CT3	CT1	CT3	CT3				CT3
CT1 I/O module	I/O	I/O	I/O	I/O	I/O	MINOR	+		I/O
							+
					ALARMS		-
(slot 10)						CRITICAL	-
						MAJOR
							+		TX
							-
							A		RX
						E1 75 OHM
						CLOCK IN
					TIMING		B
									TX
OC3 I/O module					EXTERNAL					CT3 ports
						T1 120 OHM	A	T	RX
(slot 13)								G
								R
						CLOCK IN		T
								G
							B	R
									TX
						10/100			RX
						BASE T
					CONSOLE					10/100 BASE T port
	RX					RS-232
	TX									RS-232 terminal port

OC3 ports
(MMF or SMF)		BOTH FEEDS PRIOR TO SERVICE.		POWER A POWER B		Power input module
		THIS PRODUCT IS EQUIPPED WITH
		TWO POWER FEEDS. DISCONNECT
	RX				ON
				ON		Power A and Power B
	TX			O
				OFF	O	on/off switches
					OFF
CT1 ports	MULTI	POWER A		POWER B
	MODE	-48VDC	RTN	-48VDC	RTN
Blank faceplate						Power A and Power B
						input connectors
		-48VDC	RTN	-48VDC	RTN
Ejector						Ground terminals
Captive screw
		!	SERVICE PERSONNEL ONLY.
			WARNING!
			NO OPERATOR ACCESSIBLE
			COMPONENTS. AUTHORIZED

ERX-1400 rear view

Figure 4-1Cabling your ERX system

Safety Guidelines

Observe the following guidelines when cabling your ERX system.

Ground (Earth) Warning: Connect either the freestanding ERX system or the rack to ground (earth), and ensure that a reliable grounding path is maintained in the rack.