Juniper Networks manual M120 Internet Router PIC Guide, 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.
	■ Duplex LC/PC connector (Rx and Tx)
	■ Optical interface support—See Table 33 on page 105, Table 34 on page 106, and
	Table 35 on page 106
	NOTE: To extend the life of the laser, when a PIC is not being actively used with any valid
	links, take the PIC offline until you are ready to establish a link to another device. For
	information about taking a PIC offline, see the request chassis pic offline command in the
	JUNOS System Basics and Services Command Reference.
LEDs	One tricolor per port:
	■ 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

104■ SONET/SDH OC48/STM16 (Multi-Rate) PIC with SFP