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Mobile HVAC Maintenance
Application: Field configuration troubleshooting of HVAC
systems
Quatech Products Used: SSP-200/300
1 Port RS-422/485 Serial PCMCIA Card
A major HVAC manufacturer has developed a building automation service
tool that requires an RS-485 serial port interface. The system enables
field technicians to communicate with large HVAC installations to change
configurations and troubleshoot malfunctioning units. A laptop running
specially designed software interfaces to an RS-485 half-duplex link that
has up to 64 HVAC unit controllers on it.
A custom designed Quatech SSP-200/300 serial PCMCIA card with a modular
connector supplies the RS-485 connection for this system. The card fully
supports the half-duplex network, and provides fast data rates of up to
921.6 kpbs, providing superior performance for this data-intense application.
Other Industrial Monitoring and Control Applications:
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