[DISCONTINUED] TBA15 Bogen Talkback Amplifier

The 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.

Specifications

FCC Registration Number

• under Part 68 rules - CD272Q-17147-KX-N
• Ringer Equivalence - 0.0B
• Controls (screwdriver-adjustable) - Loudspeaker Output Volume, Talkback Volume, Switching Sensitivity, Switching Delay

Telephone to Loudspeaker

• Rated Power Output - 15W
• Frequency Response - 200 Hz to 10 kHz
• Input Sensitivity - -20 dBm
• Input Impedance - 600 ohms, balanced
• Distortion (@RPO) - Less than 3% (150 mV input signal)
• Signal-to-Noise Ratio - -50dB (20 Hz to 20 kHz)
• Voice-Activated Switching
  • Sensitivity - -46dBm
  • Attack Time - Less than 5ms. (3ms., typ.)
  • Switching Delay Time - adjustable from 50 ms. to greater than 0.5 sec.
• Output Impedance - 25V or 70V balanced line

Loudspeaker to Telephone

• Frequency Response - 1500 Hz to 20 kHz
• Distortion - Less than 2%
• Signal-to-Noise Ratio - -40 dB
• Output Level - Processed to meet FCC Part 68
• Circuit Overload Protection - Push-to-Reset circuit breaker, Safe Operating Area (SOA) and thermal protection for the output device Unidirectional Operation - Terminals provided to defeat two-way function
• Power Requirements - 120V AC, 60 Hz, 0.7A
• Temperature Range - 0 - 50°C (32 - 122°F)
• Humidity Range - 0 - 95%, noncondensing
• Enclosure - Sheet metal finished in black enamel
• Dimensions - 19" W x 5-1/4" H x 2-5/8" D
• Product Weight - 7 lb.

TBA15 Specifications PDF

TBA15 Installation Manual