RS-703

Technical Specifications

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 – 20k Hz ± 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: Green LED
Call A: Orange LED
Talk B: Green LED
Call B: Orange LED

Connectors
Intercom Line: (2) 3-pin XLR–M–F Ch. 1 2-Wire
Intercom Channel Pin 1: Common; Pin 2: PL Power (+28VDC)/PL Ch-A; Pin 3: PL Ch-B
Headset: 4-pin XLR–M
Headset Connector; Pin 1: Mic – (Mic Common); Pin 2: Mic +; Pin 3: Spkr-; Pin 4: Spkr+ (&0.5*VCCDC Supply between Pin 4 & Pin 1)
Program Audio Input: 3.5mm TRS jack

Power Requirements
25mA Quiescent
35mA Average talk
40mA Talk with signaling
DC Voltage Range: 12-30VDC

Environmental
Operating Temp Range: 0˚C – 70˚C (32˚F – 158˚F)
Storage Temp Range: 0˚C – 70˚C (32˚F – 158˚F)
Relative Humidity: 0 – 90% non condensing

Dimensions
3.4in H x 4.5in W x 1.7in D
(86.4 x 114.3 x 43.2 mm)

Weight
0.68 lbs (0.31 kg)

RS-703