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SONET/SDH OC12c/STM4 PIC

Image g001364.gif

Software release
  • JUNOS 4.1 and later
Description
  • One OC12 port
  • Power requirements: 0.23 A/48 V @ 10.8 W
  • Optical interface support—see Table 11
Hardware features
  • Multiplexing and demultiplexing
  • Rate policing on input
  • Rate shaping on output
  • Packet buffering, Layer 2 parsing
Software features
  • SONET/SDH framing
  • Alarm and event counting and detection
  • Dual-router automatic protection switching (APS)
  • Multiprotocol Label Switching (MPLS) fast reroute
  • Link aggregation
  • Encapsulations:
    • High-level Data Link Control (HDLC)
    • Frame Relay
    • Multiprotocol Label Switching (MPLS) circuit cross-connect (CCC)
    • Point-to-Point Protocol (PPP)
Cables and connectors
  • Duplex SC/PC connector (RX and TX)
LEDs 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 (AIS-L, 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)
  • Errored Seconds (ES-S, ES-L, ES-P), Far-end Bit Errors REI-L, REI-P (CV-LFE, 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)
  • Loss of Frame (LoF), Loss of Pointer (LoP-P), Loss of Signal (LoS)
  • Payload Mismatch (PLM-P), Payload Unequipped (UNEQ-P)
  • Remote Defect Indication (RDI-L, RDI-P)
  • Severely Errored Framing (SEF), Severely Errored Framing Seconds (SEFS-S), Severely Errored Seconds (SES-S, SES-L, SES-P), Unavailable Seconds (UAS-L, UAS-P)

Table 11: Optical Interface Support for SONET/SDH OC12c/STM4 PICs

PIC Type Single-mode Intermediate Reach Multimode
Optical interface Single-mode intermediate reach (Bellcore GR-253 compliant) optical interface (maximum distance 9.3 miles/15 km) Multimode optical interface (maximum distance 546.8 yards/500 m))
Wavelength 1274 through 1356 nm 1270 through 1380 nm
Average launch power –15 through –8 dBm –20 through –14 dBm
Receiver saturation –8 dBm –14 dBm
Receiver sensitivity –28 dBm –26 dBm

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