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Channelized OC12/STM4 Enhanced IQ (IQE) PICs with SFP (T4000 Router)

Figure 1: 1-Port IQE PIC
1-Port IQE PIC
Figure 2: 4-Port IQE PIC (Type 2)
4-Port IQE PIC  (Type 2)
Figure 3: 4-Port IQE PIC (Type 3)
4-Port IQE PIC (Type 3)

Software Release

  • Junos OS Release 12.1R2 (Type 1)

  • Junos OS Release 12.2R2 (Type 2)

  • Junos OS Release 13.2 (Type 3)

For information on which FPCs support these PICs, seeT4000 PIC/FPC Compatibility.

Hardware Features

  • Four OC12/STM4 ports

  • SONET or SDH is configurable on a per-port granularity

  • SONET channelization (4-port PIC):

    • 4 OC12 channel

    • 16 OC3 channels

    • 48 DS3 channels

    • 672 DS1 channels

    • 974 DS0 channels

  • SDH channelization (4-port PIC):

    • 4 STM4 channel

    • 16 STM1 channels

    • 48 E3 channels

    • 504 E1 channels

    • 48 DS3 channels

    • 672 DS1 channels

    • 974 DS0 channels

  • Power requirement: 1.08 A @ –48V (52 W)

  • Model number (Type 1): PB-1CHOC12-STM4-IQE-SFP

  • Model number (Type 2): PB-4CHOC12-STM4-IQE-SFP

  • Model number (Type 3): PC-4CHOC12-STM4-IQE-SFP

  • 1-port: Port is numbered 0.

  • 4-port: Ports are numbered:

    • Top row: 2 and 0 from left to right

    • Bottom row: 3 and 1 from left to right

Software Features

Table 1: Software Features Supported

Software Feature

T4000 First Supported Junos OS Release

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 Library for Routing Devices for more information about class of service features.


Subrate and scrambling:

  • Digital Link/Quick Eagle

  • Kentrox

  • Larscom


  • Verilink


Packet buffering, Layer 2 parsing


M13/C-bit parity encoding


DS3 far-end alarm and control (FEAC) channel support


Local line, remote line, and remote payload loopback testing


Simple Network Management Protocol (SNMP): OC3 MIB, DS3 MIB, T1 MIB


Dynamic, arbitrary channel configuration


Full bit error rate test (BERT)



  • 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




  • Multilink Frame Relay (MLFR) UNI NNI (MFR FRF.16)

  • Point-to-Point Protocol (PPP)

  • PPP for CCC

  • PPP for TCC


Encapsulations available only for DS1:

  • Multilink Frame Relay end-to-end (MLFR FRF.15)

  • Multilink PPP (MLPPP)

  • PPP over Frame Relay


Cables and Connectors

  • Duplex LC connector (Rx and Tx); single-mode fiber

  • SONET/SDH OC12/STM4 fiber-optic SFP transceivers:

    • Short reach (model number: SFP-OC12-SR)

    • Intermediate reach (IR-1) (model number: SFP-OC12-IR)

    • Long reach (LR-1) (model number: SFP-OC12-LR)

    Optical interface specifications—see SONET/SDH OC12/STM4 Optical Interface Specifications


Table 2: Channelized OC12/STM4 Enhanced IQ (IQE) PICs with SFP LEDs







Not enabled


On steadily

Online with no alarms or failures


On steadily

Online with alarms for remote failures


On steadily

Active with a local alarm; router has detected a failure

Alarms, Errors, and Events

  • SONET alarms:

    • 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)

    • Loss of frame (LOF)

    • Loss of light (LOL)

    • Loss of pointer (LOP)

    • Loss of signal (LOS)

    • Payload label mismatch (PLM-P)

    • Remote defect indication—line (RDI-L)

    • Remote defect indication—path (RDI-P)

    • Remote error indication (REI)

    • Payload unequipped (unequipped STS at path level) (UNEQ-P)

    • Virtual container—alarm indication signal (VAIS)

    • Virtual container—loss of pointer (VLOP)

    • Virtual container—mismatch (VMIS)

    • Virtual container—remote defect indication (VRD1)

    • Virtual container—unequipped (VUNEQ)

  • SDH alarms:

    • Administrative unit alarm indication signal (AU-AIS)

    • Bit error rate—signal degrade (BERR-SD)

    • Bit error rate—signal fail (BERR-SF)

    • Bit interleaved parity (BIP) error B1, B2, B3

    • Higher order path—alarm indication signal (HP-AIS)

    • Higher order path—far-end receive failure (HP-FERF)

    • Higher order path—payload label mismatch (HP-PLM)

    • Higher order path—loss of pointer (HP-LOP)

    • Higher order path—remote defect indication (HP-RDI)

    • Higher order path—unequipped (HP-UNEQ)

    • Loss of frame (LOF)

    • Loss of light (LOL)

    • Loss of signal (LOS)

    • Multiplex section—alarm indication signal (MS-AIS)

    • Multiplex section—far-end receive failure (MS-FERF)

    • Multiplex section—remote defect indication (MS-RDI)

    • Multiplex section—remote error indication (MS-REI)

    • Phase lock loop (PLL)

    • Remote error indication (REI)

    • Severely errored frame (SEF)

    • Tributary unit—alarm indication signal (TU-AIS)

    • Tributary unit—loss of pointer (TU-LOP)

    • Tributary unit—mismatch (TU-MIS)

    • Tributary unit—remote defect indication (TU-RD1)

    • Tributary unit—unequipped (TU-UNEQ)

  • 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)

    • Severely errored seconds (SES)

    • Severely errored framing seconds (SEFS)

    • Unavailable seconds (UAS)

  • DS3 alarms:

    • Alarm indication signal (AIS)

    • Loss of frame (LOF)

    • 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