TBA15 amplifier allows a paging system to be used for hands-free, two-way conversation between a telephone system and remote speakers. The TBA15 uses the system?s speakers as microphones and
feeds this signal out to a telephone line. When the TBA15 senses an audio signal on the telephone line, it automatically switches its 15W amplifier on and uses the speakers in the system conventionally. Control of speech direction is maintained at the telephone handset.
- 15-watt amplifier
- Hands-free 2-way conversations through the
paging system
- 600-ohm transformer-coupled telephone line
input
- 25V or 70V balanced line outputs
- Adjustable sensitivity control for switching from
listen to talk
- Adjustable switch-back delay prevents
chopping of pages and provides smooth 2-way
conversations
- Talkback and page volume controls
- Talkback frequency shaped for maximum
intelligibility and background noise rejection
- Power ON LED
- Mute input forces amplifier to go into page
mode
- Control of speech direction is maintained at the
telephone handset
- Electronic switching, no relays
- Resettable circuit breaker with thermal
protection
- Operates from a 120V AC, 60 Hz source
- Finished in black enamel
- Wall or 19" rack mount
