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Channelized STM1 IQ PIC (M320 Router)

Image g003096.gif

Software release

  • JUNOS 6.2 and later (Type 1)


  • One STM1 port
  • Power requirement: 0.39 A @ 48 V (18.6 W)
  • Fine-grained queuing per logical interface
  • Channelization: STM1c, fractional E1, framed and unframed DS0

Hardware features

  • Packet buffering, Layer 2 parsing
  • 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)
  • Dynamic, arbitrary channel configuration
  • Full bit error rate test (BERT) patterns at E1 and DS0 levels
  • 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

  • Duplex SC/PC connector (Rx and Tx); single-mode intermediate-reach fiber


One tricolor per port:

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

Alarms, errors, and events

  • Alarm indication signal—line (AIS-L)
  • Alarm indication signal—path (AIS-P)
  • Bit error rate—signal degrade (BERR-SD)
  • Bit error rate—signal fail (BERR-SF)
  • Bit interleaved parity errors B1, B2, B3 (CV-S, CV-L, CV-P)
  • Loss of frame (LOF)
  • Loss of pointer (LOP-P)
  • Loss of signal (LOS)
  • Payload mismatch (PLM-P)
  • Payload unequipped (unequipped STS at path level) (UNEQ-P)
  • Remote defect indication—line (RDI-L)
  • Remote defect indication—path (RDI-P)

Error detection:

  • Errored seconds (ES-S, ES-L, ES-P)
  • Far-end bit errors, remote error indication—line (REI-L), far-end line coding violations (CV-LFE)
  • Far-end bit errors, remote error indication—path (REI-P), far-end path coding violations (CV-PFE)
  • Far-end errored seconds (ES-LFE, ES-PFE)
  • Far-end severely errored seconds (SES-LFE, SES-PFE)
  • Far-end unavailable seconds (UAS-LFE, UAS-PFE)
  • Severely errored frames (SEF)
  • Severely errored framing seconds (SEFS-S)
  • Severely errored seconds (SES-S, SES-L, SES-P)
  • Unavailable seconds (UAS-L, UAS-P)

Instrumentation (counters)

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

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