TOA VS-900 Programmer’s Guide
Overview
Security system installations often require integration of the VS-900 Security Intercom systems with touch-screen control systems, graphic annunciator panels, and camera controllers. TOA offers two options for meeting this requirement:
1.The VS-900DI and VS-910DI interface products offer a hardware solution—they provide the call LED outputs and select switch inputs required for graphic annunciator panels. They also provide relay outputs for camera switcher integration. Using this off-the-shelf method requires no knowledge of computer programming or serial communication.
2.The VS-900MF Mainframe has two integral serial ports for integration with a microprocessor-based product (usually a PC or PLC) for remote control and monitoring of VS-900 activity. Serial communication with the VS-900MF eliminates the need for installing VS-900DI and VS-910DI cards and elevates the programmer's level of control.
This document targets programmers who need an understanding of how they can remote control and monitor the VS-900 by communicating through its RS-232 ports.
Note: Descriptions of the protocol and all examples are written in hexadecimal (H). Appendix B includes a chart for hex to decimal and ASCII conversion.
VS-900 Documentation
Please refer to the following VS-900 documents, shipped with the VS-900MF or available by request.
•VS-900 Installation Manual
•VS-900 Operating Instructions
•VS-900 Software Manual
Useful Software Tools
•MS Windows Calculator, usually located under Program Files\Accessories
•HyperTerminal Private Edition, available for download from http://www.hilgraeve.com
•ComLite32 Serial Com Port Monitor software available for download from http://www.rtcomm.com
