Product Overview
RTS' BP-351 is a portable user station for use with RTS™ Two-Wire intercom systems. The BP-351 is a microprocessor controlled two-channel select intercom belt pack. The BP-351 has a connection for headset/earset microphones (Dynamic or Electret). The factory setting is for Dynamic.
Features:
- Call function that allows the user to send or receive call signals to other devices on the intercom channel, including audible call alert on the listen side.
- Microprocessor-controlled microphone kill detect.
- Powered externally
- Headset 4-pin XLR connection
- A built-in auto-sensing headset connector determines automatically whether a dynamic or electret headset is connected to the system.
Specifications:
- Channel Supplied Power Requirements: 30 VDC nominal (standard RTS line), 45 to 70 mA
- Environmental Requirements:
- Storage: -20°C to 80°C; 0% to 95% humidity, noncondensing
- Operating: 0°C to 50°C; 0% to 95% humidity, noncondensing
- Dimensions: 5" (127 mm) high, 3.5" (88.9 mm) wide, 1.8" (45.7 mm) deep
- Weight: Approximately 13 oz (364 g)
- Interface Requirements:
- Headset/Earset:
- 50 to 200 ohm dynamic microphone
- 50 to 600 ohm headphones
- RTS Intercom Channel:
- Output Level: 0.775 Vrms (0 dBu) nominal
- Bridging Impedance: greater than 10,000 ohms
- Call Signalling:
- Send: 20 kHz ±100 Hz, 240 mVrms ±10%
- Receive: 20 kHz ±800 Hz, 100 mVrms
- Mic-Off Frequency Detect: 24 kHz ±800 Hz, 100 mVrms
- Noise Contribution: less than -60 dB on the line
- Headphone Amplifier:
- Maximum Output: 60 mW into 150 ohms
- Frequency Response: 200 Hz to 8 kHz +1/-4dB nominal
- Audible Alert: 1 kHz tone
- Total Harmonic Distortion: Less than 0.2% nominal at 50 mW from the line
- Sidetone: 20 dB minimum range, adjustable
- Connector Pin Configurations:
- Intercom Channel Connector
- Pin 1 Headset Microphone low
- Pin 2 Headset Microphone high
- Pin 3 Headphone Low
- Pin 4 Headphone High
- Pin 5 No Connection
