Overview
The RS-703* is a two-channel analog beltpack with an XLR-3 line connector and XLR-4M headset connector. A mic preamp with a dynamic range of 130 db enables intelligible voice communication for every volume level from a whisper to a shout. The beltpack also combines high headroom low noise audio and shaped frequency contour (Clear-Com Sound) to deliver crystal-clear audio. A thumbwheel level adjustment is available for Program In as welll as a 3.5mm TRS jack for Program Input.
The RS-703 is compatible with all Encore partyline products as well as the PL-Pro line and other TW partyline systems via Encore interfaces.
*A TWC-701 interface is required to connect beltpacks to main station. Only one interface is necessary for each system.
Specifications
Microphone Pre-AmplifierMic 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)
