CalAmp . 140-5046-500

The Guardian-400 serial or analog radio is optimized for the 450 &ndash; 512 MHz licensed VHF band. Device is configured for standard simplex and half duplex operation. Designed for today's highspeed SCADA and Telemetry, Guardian networks provide a transparent 19200 bps digital link in a 25 kHz channel, or a 9600 bps digital link in a 12.5 kHz channel that is compatible with most protocols.<br /> Guardian is available at VHF, UHF, and 900 MHz, and supports RNet and COR brand radio modems via the Dataradio Interoperability Standard (DI-OS). Selectable operating modes provide flexibility: RS-232, RS-422, and RS-485 compatible; simplex, half-duplex or full-duplex operation; RTS-CTS handshaking protocol or data activated transmission (DOX) mode. Transparent, asynchronous serial formats are supported, such as Modbus, Modbus-RTU, AB DF1, and various other protocol formats.<br /> The Guardian wireless modem provides a high-speed data link suitable for a wide variety of applications requiring system security and diagnostic reporting. Designed for speed and efficiency, Guardian provides over-the-air data rates up to 19.2 Kbps in a 25 kHz channel.<br /> This listing is for Each.