The TBB-1B will boost talk battery voltage up to 48VDC, and current up to 26mA on single analog line extensions behind PABXs 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-1B is being used, the power LED lights extra bright to show activity. The TBB-1B is not compatible with Pulse/Rotary dialing.
- Boost talk battery voltage up to 40VDC
- Boost talk battery 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 adapter included
- Compatible with touch tone dialing
- Note: Not compatible with pulse/rotary dialing.