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    EIA-530 PIC (M40e Router)

    Image g003046.gif

    Software release


    • Two EIA-530, X.21 or V.35 serial ports
    • Power requirement: 0.07 A @ 48 V (3.4 W)

    Hardware features

    • Configured as data terminal equipment (DTE) ports
    • Resynchronization signal
    • Receives clock rates up to 16 Mbps
    • Local, data communications equipment (DCE) local, and DTE remote loopbacks

    Software features

    • Supports four queues per port
    • Random early detection (RED)
    • Transmitter Signal Element Timing is looped from the timing received on the Transmitted Signal Element DCE. EIA-530 ports support the ability to invert the Transmit Data Element. The EIA-530 ports support the following rates:
      • 2.048 Mbps
      • 2.341 Mbps
      • 2.731 Mbps
      • 3.277 Mbps
      • 4.09 Mbps
      • 5.461 Mbps
      • 8.192 Mbps
      • 16.384 Mbps
    • V.35 ports support up to 2.048 Mbps
    • X.21 ports support up to 10 Mbps
    • Encapsulations:
      • Circuit cross-connect (CCC)
      • Translational cross-connect (TCC)
      • Frame Relay
      • High-Level Data Link Control (HDLC)
      • Point-to-Point Protocol (PPP)

    Cables and connectors

    • Two DB-25 male connectors (one per port, included with PIC)
    • V.35 requires an EIA-530 to V.35 cable and connects to a V.35 DTE 34-pin Winchester type male cable (one per port)
    • X.21 requires an EIA-530 to X.21 cable and connects to a X.21 DTE DB-15 male cable


    Three bicolor per port:

    • Data set ready (DSR):
      • Green—DSR is detected or ignored
      • Red—DSR expected but not present
    • Data carrier detect (DCD):
      • Green—DCD is detected or ignored
      • Red—DCD expected but not present
    • Resynchronization:
      • Green—Keepalives are being received
      • Red—Data terminal ready (DTR) toggled from low to high (resynchronization pulses are being sent)

    Instrumentation (counters)

    • Per-port packet and byte counters
    • Resynchronization counters:
      • Number of resynchronizations initiated
      • Time of last resynchronization

    Published: 2010-10-28