Software release

• Junos OS Release 9.4 and later (Type 1)

Description

• Four OC3/STM1 ports
• Power requirement: 0.52 A @ 48 V (25 W)
• Channelization: DS1

  Channelization down to E1/T1

  Each port can be channelized as 84 T1 ports for a total of 336 T1 pseudowires or 63 E1 ports for a total of 252 pseudowires.

Hardware features

• Subrate and scrambling:
  • Digital Link/Quick Eagle
  • Kentrox
  • Larscom
  • ADTRAN
  • Verilink
• M13/C-bit parity encoding
• Local and remote loopback testing

Software features

• Loop timing and external timing
• Optical diagnostics
• AM1 or B8ZS line encoding
• APS/SDH MSP
• Fractional mode and framed clear channel mode
• Superframe (D4/SF) and extended superframe (ESP) framing
• Simple Network Management Protocol (SNMP):
  • OC3 MIB
  • T1 MIB
  • ATM MIB (Junos OS Release 10.2 and later)
• Automatic protection switching (APS)
• Dynamic, arbitrary channel configuration
• Full bit error rate test (BERT)
• Encapsulations: Structure-agnostic time-division multiplexing (TDM) over packet (SAToP) (RFC 4553)
• Pseudowire emulation edge-to-edge (PWE3) for ATM (RFC 4717) (Junos OS Release 9.6 and later)
• ATM Pseudowire emulation edge-to-edge via dynamic labels (LDP, RSVP-TE) (Junos OS Release 9.6 and later)
• Inverse mulitplexing (IMA) for ATM (Junos OS Release 10.0 and later)
• ATM QoS for the Junos OS Release 10.2 and later:
  • Per-virtual circuit (VC) and per-virtual path (VP) traffic shaping
  • Unspecified bit rate (UBR) traffic shaping
  • Fine-grained real-time variable bit rate (rtVBR) and real-time variable bit rate (nrtVBR) traffic shaping
  • Port-level egress shaping
  • Constant bit rate (CBR)
  • Policing on a per virtual circuit basis
  • Independent peak cell rate (PCR) and sustained cell rate (SCR) policing
  • Counting, tagging, or discard policing actions

Cables and connectors

• Duplex LC/PC connector (Rx and Tx)
• SONET/SDH OC3/STM1 fiber-optic SFPs:
  • Multimode (model number: SFP-OC3-SR)
  • Intermediate reach (IR-1) (model number: SFP-OC3-IR)
  • Long reach (IR-1) (model number: SFP-OC3-LR)

  Optical interface specifications—see SONET/SDH OC3/STM1 Optical Interface Specifications

LEDs

OK LED, one tricolor:

• Off—PIC is offline and it is safe to remove it from the router.
• Green—PIC is operating normally.
• Yellow—PIC is initializing.
• Red—PIC has an error or failure.

APP LED, one bicolor:

• Off—Monitoring application is not running.
• Green—Monitoring application is running under acceptable load.

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

Structure-agnostic alarms for T1 interface:

• Alarm indication signal (AIS-L, AIS-P)
• Loss of signal (LOS)
• Errored seconds (ES)
• Line-errored seconds (LES)
• Severely errored seconds (SES)
• Unavailable errored seconds (UAS)
• Bipolar violation (BPV)
• Controlled slip (CS)
• Line code violation (LCV)

Structure-agnostic alarms for E1 interface:

• Alarm indication signal (AIS-L, AIS-P)
• Loss of signal (LOS)
• Errored seconds (ES)
• Line-errored seconds (LES)
• Severely errored seconds (SES)
• Unavailable errored seconds (UAS)
• Bipolar violation (BPV)
• Controlled slip (CS)
• Line code violation (LCV)