M20 Internet Router PIC Guide

Channelized E1 IQ PIC

Software release

JUNOS 5.6 and later

Description

Ten E1 ports

 

Power requirement: 0.15 A @ 48 V (7.2 W)

 

Intelligent queuing (IQ) PICs support fine-grained queuing per logical interface.

 

Channelization: E1, DS0

Hardware features

Data service unit (DSU) functionality

 

Ports configurable as clear channel E1 interfaces with 2.048-Mbps connectivity

 

Supports unframed E1 G.703 and G.704 framing modes

 

Supports HDB3 line coding

 

CRC4 configurable

 

Local and remote loopback testing

Software features

Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection

 

 

(RED), weighted random early detection (WRED)

 

Simple Network Management Protocol (SNMP): E1 MIB, DS0 MIB

 

Dynamic, arbitrary channel configuration

 

Full bit error rate test (BERT)

 

Encapsulations:

 

 

High-Level Data Link Control (HDLC)

 

 

Frame Relay

 

 

Circuit cross-connect (CCC)

 

 

Translational cross-connect (TCC)

 

 

Point-to-Point Protocol (PPP)

Cables and connectors

120-ohm RJ-48C

LEDs

One bicolor per E1 port:

 

Off—Port not enabled

Green—Physical E1 link is up; individual subchannels can be down Red—Physical E1 link is down

24Channelized E1 IQ PIC

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Juniper Networks M20 manual Channelized E1 IQ PIC