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    E3 EOL PIC (M7i Router)

    Software release

    • Junos OS Release 6.0 and later


    • Four E3 ports
    • Power requirement: 0.47 A @ 48 V (22.5 W)
    • Integrated DSU interoperability

    Hardware features

    • High-density E3 (34.368-Mbps) connectivity
    • High-performance throughput on each port at speeds up to 34.368 Mbps, full duplex
    • Scrambling support
    • Subrate clocking support
    • Rate policing on input
    • Rate shaping on output
    • Packet buffering, Layer 2 parsing
    • Large MTUs, up to 9192 bytes
    • Local and remote loopback

    Software features

    • Supports G-751 framing
    • E3 diagnostics and loopback control
    • E3 alarm and event counting and detection
    • DS3 diagnostics and loopback control
    • Bit error rate test (BERT); you can configure one port in BERT mode and configure the remaining channels to transmit and receive normal traffic
    • 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

    • Custom 10 ft (3.05 m) posilock to BNC male cable, separate RX and TX


    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 indication signal (AIS)
    • Equipment failure (does not affect service)
    • Frame error
    • Line code violation
    • Loss of signal (LOS)
    • Out of frame (OOF)
    • Yellow alarm bit (A-bit) disagreements

    Published: 2012-03-21