Juniper-networks M20 Bedienungsanleitung PDF herunterladen (Seite 16)

Channelized E1 PIC

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JUNOS 5.1 and laterSoftware release

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Ten E1 ports

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Power requirement: 0.15 A/48 V @ 7.2 W

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Supports up to 24 NxDS0 channels per port

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Data Service Unit (DSU) functionality

Description

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

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Rate limiting on input and output

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Packet buffering, Layer 2 parsing

Hardware features

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Four data-link connection identifiers (DLCIs) per logical customer channel

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Unframed E1 G.703 and G.704 framing modes

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HDB3 line coding

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CRC4 configurable

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Per-packet counts and byte counts

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Local and remote loopback testing

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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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Translational cross-connect (TCC)

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Point-to-Point Protocol (PPP)

Software features

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128-ohm RJ-48CCables and connectors

One bicolor per port:

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Off—Port not enabled

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

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Red—Physical E1 link is down

LEDs

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Alarm Indication Signal (AIS)

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Loss of Frame (LoF)

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Out of Frame (OoF)

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Failed Signal Rate (FSR)

Alarms, errors, and

events

16 ■ Channelized E1 PIC

M20 Internet Router PIC Guide: End-of-Life PICs

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