Skip to main menu Skip to main content Skip to footer

TW-47

The TW-47 is a stand-alone interface designed to connect a 2-way radio or walkie-talkie into a single channel of a standard 十大正规体育平台, RTS, or compatible 2-wire party-line intercom system. It provides both audio connection and “push-to-talk” transmitter keying, using standard Call signals.

Note: Access the Encore Power Supply Calculator to estimate power requirements for analog partyline systems.

Details

  • Interfaces any 2-way radio to a single channel of 十大正规体育平台, RTS or compatible system
  • Accepts any walkie-talkie or radio with headset and microphone jacks
  • Individual transmit and receive level controls
  • Bi-color LED audio level indicator
  • Powered by the intercom line

Item Code

TW-47

Technical
Specifications

Radio to Partyline
Line Characteristics

Frequency Response: 200-20kHz ± 3dB

Max Gain: >=-5dBu

Distortion: <=0.3%

Noise: <=-70dBu

Max Level Before Clipping: >=+17dBu

Green LED Threshold: -22dBu ± 3dB

Red LED Threshold: -16dBu ± 3dB

Input Impedance: 400O ± 100O

 
Partyline to Radio
Line Characteristics
Frequency Response: 200-8kHz ± 3dB
Max Gain J7 ON, J8 ON: -12dBu ± 3dB
Max Gain J7 OFF, J8 ON: +2dBu ± 3dB
Max Gain J7 OFF, J8 OFF: +27dBu ± 3dB

Distortion: <=0.3%

Noise: <=-50dBu

Max Level Before Clipping: >=0dBu

 
Power Requirements

Input Voltage Range: 20-30V DC

Quiescent Current: <=40mA

Current with Audio: <=50mA

Current with Call: <=60mA

 
Dimensions

1.8 x 3.95 x 6.4in (HxWxD)

(46 mm x 100 mm x 163mm)

 
Weight

1.3lbs (0.6kg)

Ready to get
started?

Our team of communications professionals are here to support your project. Contact us today to start designing your custom intercom solution.

Sales Contacts Where to Buy/Rent