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Home > Support > Technical Documentation > M Series Routers > M320 Router Hardware > Channelized DS3/E3 Enhanced IQ (IQE) PIC (M320 Router)
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Related Documentation

  • M Series
  • M320 PIC Description
  • High Availability Features
  • M320 PIC Combination Limitations
  • M320 PICs Supported
 

Channelized DS3/E3 Enhanced IQ (IQE) PIC (M320 Router)

Software release

  • Junos OS Release 9.3 and later (Type 1)

    For information on which FPCs support this PIC, see M320 PIC/FPC Compatibility.

Description

  • Four E3 or Channelized DS3 ports
  • E3 or Channelized DS3 is configurable on a per-port granularity
  • DS3 channelization:
    • 4 DS3 channels
    • 112 DS1 channels
    • 1011 DS0 channels
  • Power requirement: 0.53 A @ 48 V (25.4 W)

Hardware features

  • Ports are numbered 0 through 3 top to bottom

Software features

  • Maximum transmission units (MTUs) of up to 9000 bytes
  • Dynamic, arbitrary channel configuration
  • Subrate and scrambling:

    Note: Only DS3 supports subrate and scrambling.

    • Digital Link/Quick Eagle
    • Kentrox
    • Larscom
    • ADTRAN
    • Verilink (subrate: only port A mode)

      Note: For DS3 interfaces, Verilink does not function if an IQE interface is paired with an IQ interface.

    • Data service unit (DSU) functionality
    • B3ZS line encoding
    • Framing: M13, C-bit parity, framed clear channel
    • Full bit error rate test (BERT) for DS0, DS1, and DS3
    • ANSI T1.403 FDL
    • Internal and loop clocking for DS3 and DS1
    • DS3 far end alarm and control (FEAC) channel
    • Local line, remote line, and remote playback loopback testing for each DS3 and DS1 channel
    • Quality of service (QoS) per channel: weighted round-robin (WRR), random early detection (RED), weighted random early detection (WRED)
    • Enhanced fine-grained queuing per logical interface. See the Junos OS Class of Service Configuration Guide PDF Document for more information about class of service features.
    • Simple Network Management Protocol (SNMP): DS1 MIB, DS3 MIB
    • Encapsulations:

      • Circuit cross-connect (CCC)
      • Translational cross-connect (TCC)
      • Extended Frame Relay for CCC and TCC
      • Flexible Frame Relay
      • Frame Relay
      • Frame Relay for CCC
      • Frame Relay for TCC
      • Frame Relay port CCC
      • High-Level Data Link Control (HDLC)
      • HDLC framing for CCC
      • HDLC framing for TCC
      • MPLS CCC
      • MPLS TCC
      • Multilink Frame Relay (MLFR) UNI NNI (MFR FRF.16)
      • Point-to-Point Protocol (PPP)
      • PPP for CCC
      • PPP for TCC

Cables and connectors

  • Standard DS3 BNC coaxial cable interfaces

LEDs

One tricolor per port:

  • Off—Not enabled
  • Green—Online with no alarms or failures
  • Yellow—Online with alarms for remote failures
  • Red—Active with a local alarm; router has detected a failure

Alarms, errors, and events

  • Alarm reporting for error statistics and failure counts
  • DS1 alarms:

    • Alarm indication signal (AIS)
    • Loss of frame (LOF)
    • Remote alarm indication signal (RAIS)
  • DS1 error detection:

    • Bursty errored seconds (BES)
    • CRC errors
    • Errored seconds (ES)
    • Line errored seconds (LES)
    • Loss of framing seconds (LOFS)
    • Loss of signal seconds (LOS)
    • Severely errored seconds (SES)
    • Severely errored framing seconds (SEFS)
    • Unavailable seconds (UAS)
  • DS3 alarms:

    • Alarm indication signal (AIS)
    • Loss of frame (LOF)
    • Loss of signal (LOS)
    • Phase lock loop (PLL)
    • Yellow alarm
  • DS3 error detection:

    • C-bit code violations (CCV)
    • C-bit errored seconds (CES)
    • C-bit severely errored framing seconds (CEFS)
    • CRC errors
    • Excessive zeros (EXZ)
    • Far-end block error (FEBE)
    • Far-end receive failure (FERF)
    • Line errored seconds (LES)
    • Parity bit (P-bit) code violations (PCV)
    • Parity bit (P-bit) errored seconds (PES)
    • Parity bit (P-bit) severely errored framing seconds (PSES)
    • Severely errored framing seconds (SEFS)
    • Unavailable seconds (UAS)

Instrumentation (counters)

  • Layer 2 per-queue and per-channel packet and byte counters
 

Related Documentation

  • M Series
  • M320 PIC Description
  • High Availability Features
  • M320 PIC Combination Limitations
  • M320 PICs Supported
 

Published: 2012-03-21

 
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