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VS4820 Inputs, Outputs and Accessories
1. On-Off Power Switch – Main power switch
2. DC Power Input – DC power supply input, 12VDC 3Amp
3. Handheld/Microphone Input – RJ-9 connector for external desktop microphone or handset.
4. USB Input – USB Type-B connector for PC programming and control.
5. Phone Line – RJ-11 input for analog (POTS) telephone line.
6. RS-232 Port – RJ-45 Serial port connection for interfacing with other computerized systems.
7. Audio Input – RCA audio input for external source integration and voice activated events.
8. Audio Output – RCA audio output for integration with external sources and amplified speaker.
9. Alarm Inputs – RJ-45 connector to provide one common line and 7 external alarm inputs.
10. External Radio – RJ-45 connector for interfacing with external digital paging transmitter.
11. TX Output – BNC RF-Out antenna connector for the unit integrated radio transmitter.
12. Keyboard – Full size keyboard.
13. Handset with PTT – VS3017 Handset package for improved voice clarity and privacy.
14. LCD Display – Graphic LCD display with backlight.
15. Built-In Microphone – Integrated microphone for 2-way communication and PA announcements.
16. Internal Speaker – Built-in speaker for 2-way voice communication.
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