EF-701M

EF-701M

  • 4-Wire Interface with Call Signal
  • High-quality partyline to 4-wire audio conversion interface
  • Maintains hybrid null with multiple units on a channel
  • Converts call signals to RS-422 data with selectable baud rate
  • Connects intercom with call signal over fiber
  • Clear-Com and RTS compatible
  • Built-in test tone and jack for nulling
  • Multi-mode data status LED
  • Powered by the intercom line
Item Part Number:
  • EF-701M

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 – Party Line: 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

Dimensions

1.62 x 5.94 x 4.8 in (HxWxD)

(41 x 151 x 122 mm)

Weight

1.75 lbs (.79 kg)

Associated Products

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