The TBB-1A will boost talk battery voltage up to 40 VDC and loop current up to 26mA on single analog line extensions behind PABX’s and electronic key systems. This is helpful for powering line powered devices such as Touch Tone dialers and emergency phones on low voltage and/or low loop current extensions. When the TBB-1A is being used, the POWER LED lights extra bright to show activity. The TBB-1A is not compatible with Pulse/Rotary dialing.

 

Applications Run line powered devices such as handsfree phones, touch tone hot-line dialers, digital announcers, etc. Increase maximum loop length on analog PABX/KSU stations Use with wireless doorbox devices

Features Modular connections for easy installation Boost talk battery voltage up to 40 VDC Boost loop current up to 26mA POWER LED also displays activity Passes original ringing through to the device Passes caller ID data Passes hook switch flash Passes CPC signals Power adaptor included Compatible with touch tone dialing Note: Not compatible with pulse/rotary dialing.

Specifications Power: 120VAC/13.8V AC 1.25A, UL listed adapter provided Dimensions: 53mm x 74mm x 25mm (2.1” x 2.1” x 1.0”) Shipping Weight: 0.9 kg (2 lbs) Environmental: 0° C to 32° C (32° F to 90° F) with 5% to 95% non-condensing humidity Talk Battery: 40V DC Loop Current to Device: 26mA (typical) Connections: (2) RJ-11 jacks