RS-703

RS-703

dBu is an absolute measurement. 0dBu is referenced to 0.775 volts RMS

Microphone Pre-Amplifier

Mic to Line (without limiter acting)

Frequency Response: 280 – 15k Hz ± 3dB

Microphone output to line – Audio Level (-50dBm Electret input): -9dBm

Microphone output to line –Distortion: <0.1%

Microphone output to line –Signal to Noise: >65dB

Clear-Com Sound: Yes

Headphone Amplifier

Frequency Response – Line to Headphone: 150 – 20kHz ± 3dB

Headphone input from line – Audio Level (-9dBm Electret input): 7dBm

Headphone input from line –Distortion: <0.5%

Headphone input from line – Signal to Noise: >50dB

Earphone to Mic – Crosstalk: >80dB

Sidetone – Adjustment Range (-80db mic input): >45dB

Keypad Indicators

Power: Green LED

Talk A and B: Green LED

Call A and B: Orange LED

Connectors

Intercom Line: (2) 3-pin XLR–M–F

Pin 1: Common

Pin 2: Power (+28V DC)/PL Ch-A

Pin 3: PL Ch-B

Headset: 4-pin XLR–M

Pin 1: Mic - (Mic Common)

Pin 2: Mic +

Pin 3: Spkr-

Pin 4: Spkr+ (and 0.5*VCC DC, supply between Pin 4 and Pin 1)

Program Audio Input: 3.5mm TRS Mini-Jack. Balanced Mono Input

Power

Input Voltage Range: 12-30V DC

Input Current (Idle): <=25mA

Input Current (Max): <=40mA

Call Voltage

16.5V DC

Minimum Voltage Needed: 3.3V

Environmental

32° - 158°F (0°- 70°C)

Dimensions

3.4 x 4.5 x 1.7in (HxWxD)

(86 x 114 x 43mm)

Weight

10.8oz (0.31kg)