Juniper-networks M20 Bedienungsanleitung PDF herunterladen (Seite 26)

Multichannel DS3 PIC

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JUNOS 5.1 and laterSoftware release

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Two DS3 ports

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Power requirement: 0.31 A @ 48 V (14.9 W)

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Supports up to 128 logical customer channels per DS3 port

Description

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Support for NxT1 by interoperating with the Link Services and Multilink Services PICs,

using MLPPP and MLFR protocols

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Onboard DSU functionality

Hardware features

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Support for four data-link connection identifiers (DLCIs) per logical customer channel

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DS3 alarm and event counting

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DS3 alarm and event detection

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DS3 diagnostics and loopback control

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DS3 framing: M13, C-bit

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T1 framing: super frame (SF) and extended super frame (ESF)

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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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Custom 10 ft/3.05 m posilock to BNC male cable, separate Rx and TxCables 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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Amber—Online with alarms for remote failures

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

LEDs

26 ■ Multichannel DS3 PIC

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

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