Juniper Networks M120 manual Cables and connectors, LEDs

M120 Internet Router PIC Guide

Cables and connectors	■ You can install any transceiver supported by the PIC. For information about installing
	and removing transceivers, see the PIC and Transceiver Installation Instructions.
	■ Fiber-optic SFP transceivers:
	■ Duplex LC/PC connector (Rx and Tx)
	■ Optical interface support—see Table 16 on page 64
	■ 1000Base-T SFP transceivers:
	■ Connector: Four-pair, Category 5 shielded twisted-pair connectivity through an RJ-45
	connector
	■ Pinout: MDI crossover
	■ Length: 328 ft/100 m
	NOTE: Do not install SONET/SDH OC48c/STM16 SFPs in the Gigabit Ethernet port. The port
	will not recognize the SFP.
LEDs	Status LED, one tricolor:
	■ Off—Not enabled
	■ Green—Online with no alarms or failures
	■ Amber—Online with alarms for remote failures
	■ Red—Active with a local alarm; router has detected a failure
	NOTE: The green status LED is lit on the 2-port Gigabit Ethernet IQ PIC when at least one
	port is online.

Port LEDs, one per port:

■Off—Port is down

■Green—Link is established

Table 16: Optical Interface Support for Gigabit Ethernet IQ PICs with SFP

Parameter	1000Base-SX	1000Base-LX	1000Base-LH
Optical interface	Multimode	Single-mode	Single-mode
Transceiver type	SFP	SFP	SFP
Standard	IEEE 802.3—1998	IEEE 802.3—1998	Multivendor
			agreement
Maximum distance	62.5/125 MMF cable:	9/125 SMF cable:	9/125 SMF cable:
	656 ft/200 m	6.2 miles/10 km	43.5 miles/70 km
	50/125 MMF cable:	62.5/125 or 50/125
	1640 ft/500 m	MMF cable:
		1804.5 ft/550 m
Transmitter	770 through 860 nm	1270 through 1355	1480 through 1580
wavelength		nm	nm
Average launch power	–9.5 through 0 dBm	–11.5 through –3	–3 through +3 dBm
		dBm

64■ Gigabit Ethernet IQ PICs with SFP