RTS IFB-325, User Manual

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4
Specifications
GENERAL
Channel Supplied Power Requirements
32 VDC nominal (standard RTS line), 50 to 80 mA
Environmental Requirements
Storage: -20°C to 80°C ; 0% to 95% humidity, non-condensing
Operating: 0°C to 50°C ; 0% to 95% humidity, non-condensing
Dimensions
3.25” (82.6mm) H x 3.5” (88mm) W x 1.8” (45.7mm) D
Weight
1.0 pound (0.45kg)
Interface Requirements
Earset
150 to 600
Ω
headphones
RTS Intercom Channel
Input Level: 2Vp-p (0dBu) nominal
Input Impedance: 200
Ω
±5%
Noise Contribution
less than -60dB on the line
Headphone Amplifier
Voltage Gain
27 ±3dB from the line
Maximum Output
165mW into 150
Ω
Frequency Response
250Hz to 8kHz +1/-4dB
Connector Pin Configurations
Headset Connector
Type: 1/4” Monaural Plug
Sleeve: Headset audio low
Tip: Headset audio high
Intercom Channel Connectors
Type: XLR-3F
Pin 1 Common
Pin 2 Intercom Channel 1 (audio and +32 VDC input)
Pin 3 Intercom Channel 2 (audio)