Juniper Networks M20 manual E3 IQ PIC

M20 Internet Router PIC Guide

E3 IQ PIC

Software release	■		JUNOS 6.1 and later
Description	■	Four E3 ports
	■ Power requirement: 0.38 A @ 48 V (18 W)
	■ Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface
Hardware features	■	Clear-channel (34.368-Mbps) and subrate E3
	■ Unframed or ITU G.751 framing
	■ Data service unit (DSU) functionality
	■	Subrate and scrambling:
		■	Digital Link/Quick Eagle
		■	Kentrox
	■	HDB3 line encoding
	■ Full bit error rate test (BERT)
	■ Local and remote loopback testing
Software features	■	Quality of service (QoS) per port: weighted round-robin (WRR), random early detection
		(RED), weighted random early detection (WRED)
	■ Simple Network Management Protocol (SNMP): E3 MIB, QoS MIB
	■ Input policing and output shaping
	■ Provider-side rate limiting
	■ Full data link connection identifier (DLCI) range with sparse channel numbering
	■ Per-DLCI queues with weighted deficit round-robin and strict priority
	■	Encapsulations:
		■ High-Level Data Link Control (HDLC)
		■	Frame Relay
		■ Circuit cross-connect (CCC)
		■ Translational cross-connect (TCC)
		■ Point-to-Point Protocol (PPP)
	■ JUNOS Release 7.0 or later is required to configure graceful Routing Engine switchover
		(GRES).
Cables and connectors	■	Standard E3 BNC coaxial cable interfaces

40■ E3 IQ PIC