Juniper-networks M7I Bedienungsanleitung PDF herunterladen (Seite 100)

T1 PIC (M7i Router)

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Junos OS Release 6.0 and laterSoftware release

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Four T1 ports

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Power requirement: 0.08 A @ 48 V (3.7 W)

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Supports clear channel T1 per port (1.544 Mbps per channel)

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Supports attenuation up to –12 dBm

Description

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Per-port loop timing

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Onboard DSU functionality for T1 connectivity

Hardware features

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ESF and SF framing

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B8ZS and AMI coding

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ESF CSU counters, WRT impairments, and CRC checking

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Local DS1 line loopback, remote line loopback

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Configurable clock source—internal or loop

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Encapsulations:

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High-Level Data Link Control (HDLC)

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Frame Relay

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Circuit cross-connect (CCC)

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Point-to-Point Protocol (PPP)

Software features

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100-ohm RJ-48 connectorCables and connectors

One tricolor per port:

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Off—Not enabled

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Green—Online with no alarms or failures

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Yellow—Online with alarms for remote failures

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Red—Active with a local alarm; router has detected a failure

LEDs

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Alarm indication signal (AIS)

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Bipolar violations

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Excessive zeros

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Far-end block errors (FEBE, E-bit errors)

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Loss of frame (LOF)

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Loss of signal (LOS)

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Yellow alarm bit (X-bit) disagreements

Alarms, errors, and

events

M7i Multiservice Edge Router PIC Guide

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