Clear-Com EF701M 4-WIre Interface with Call Signal

The EF701M also converts call signals to RS-422 data with selectable baud rate and connects intercom with call signal over fiber-optic systems.

Applications

• Broadcast facilities, theme parks, campuses, sports complexes, large research and test facilities with fiber-optic infrastructure
• Portable systems requiring long cable runs
• Extend connection lengths between stations or systemsup to a mile with standard UTP cable
• Connect a Clear-Com channel to a channel of RTS-TWwith fiber or UTP in between
• Connect Clear-Com PL or RTS-TW to a Matrix Plus 3frame
• Utilize existing, installed UTP to connect intercom locations

Features

• Maintains hybrid null with multiple units on a channel
• Extend connection lengths between stations or systems up to a mile with standard UTP cable
• Connect a Clear-Com channel to a channel of RTS-TW with fiber or UTP in between
• Connect Clear-Com PL or RTS-TW to a Matrix Plus 3 frame
• Utilize existing installed UTP to connect intercom locations

Specifications

• 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 (RTSsetting): -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 JackSocket
    • Level Adjust: (2) Rotary Control
    • Null Adjust: (3) RotaryControl
    • Power Indicator: (1) Green LED
    • Data Indicator: (1) Amber LED
  • Dimensions: 1.62" H x 5.94" W x 4.80" D
  • Weight: 1.75 lbs
  • Accessories:
  • Wiring diagram, adhesive backed
  • TS-1 testingearphone
• Clear-Com Format:
  • Line Characteristics:
  • Max Level Before Clipping:>=20dBu
  • Impedance: >=10Kohms
  • Receive: < =4 VDC
  • Send: >=11VDC
• RTS Format:
  • Line Characteristics:
    • Max Level Before Clipping:>=20dBu
    • Impedance: >=10Kohms
  • SignallingTone:
  • Send frequency: 20kHz ±1KHz
  • Receive frequency: 20kHz±500Hz
  • Send level: >=-6dBu
  • Receive level: < =-20dBu