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Clear Com Converting Interface

Part Number: Clear-Com EF-701M


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$733.50

Clear Com Converting Interface

4-Wire Interface with Call Signal, Matrix-to-Party-line.

The EF-701M interface converts a single channel of standard or TW party-line intercom to four-wire audio, while also converting call signals to RS-422 data (and back). The resulting four-wire audio plus RS-422 data can then be sent to a Clear-Com Matrix port, fiber-optic converter (modem) or connected to another EF-701M over twisted-pair cable such as CAT-5E.

Technical Specifications:

Clear-Com Format:

  • Line Characteristics:
    • Max Level Before Clipping: >=20dBu
    • Impedance: >=10KΩ
  • Signaling:
    • Receive: <=4 VDC
    • Send: >=11VDC

RTS Format:

  • Line Characteristics:
    • Max Level Before Clipping: >=20dBu
    • Impedance: >=10KΩ
  • Signaling Tone:
    • Send frequency: 20kHz ±1KHz
    • Receive frequency: 20kHz ±500Hz
    • Send level: >=-6dBu
    • Receive level: <=-20dBu

General Characteristics:

  • Frequency Response:
    • Party-line – Matrix: 200-10KHz ± 3dB
    • Matrix - Party-line: 200-10KHz ± 3dB
  • Distortion:
    • Party-line - Matrix: <=0.5%
    • Matrix - Party-line: <=0.5%
  • Noise:
    • Party-line - Matrix: <=-50dBu
    • Matrix - Party-line: <=-70dBu
  • Max Gain:
    • Party-line - Matrix (CC setting): 20dB ± 3dB
    • Party-line - Matrix (RTS setting): 16dB ± 3dB
    • Matrix - Party-line (CC setting): -5dB ± 3dB
    • Matrix - Party-line (RTS setting): -1dB ± 3dB
  • Min Gain:
    • Party-line - Matrix (CC setting): -7dB ± 3dB
    • Party-line - Matrix (RTS setting): -12dB ± 3dB
    • Matrix - Party-line (CC setting): -33dB ± 3dB
    • Matrix - Party-line (RTS setting): -29dB ± 3dB
  • Power Requirements:
    • Input Voltage Range: 20-30VDC
    • Quiescent Current: <=70mA
    • Max Current: <=80mA
  • Rear Panel Connectors and Controls:
    • Party-line: (1) XLR3F
    • RTS: (1) DB-15F
    • Matrix: (1) RJ-45, (2) Mode Switches
  • Front Panel Connectors and Controls:
    • TS1 Earphone: (1) 3.5mm Jack Socket
    • Level Adjust: (2) Rotary Control
    • Null Adjust: (3) Rotary Control
    • Power Indicator: (1) Green LED
    • Data Indicator: (1) Amber LED
  • Dimensions: 1.62 in. H x 5.94 in. W x 4.80 in D (41 mm x 151 mm x 122 mm)
  • Weight: 1.75 lbs (0.794 kgs)
  • Accessories: Wiring diagram, adhesive backed TS-1 testing earphone
Overview:

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