User's Manual

Table Of Contents
4 SERIAL AND BUS COMMUNICATIONS
4.1 Serial Interfaces
The LRP820 has RS232 and RS422 available on the COM1 serial port.
COM2 is configured for RS232 communications and is reserved for down
-
loading programs to the LRP820 and for setting up the configuration
parameters.
Both RS232 and RS422 interfaces are opto-isolated. The RS422 interface
is specially suitable for long cable, noisy environment links.
The specification for the COM1 interface follows:
n
Baud rate: 1200, 2400, 4800, 9600, 19200, 38400 bps
n
Data: 7, 8
n
Parity: Even, Odd, None
n Handshake: None, Xon/Xoff
The specification for the COM2 interface follows:
n
Baud rate: 1200, 2400, 4800, 9600, 19200 bps
n
Data: 7, 8
n
Parity: Even, Odd, None
n
Handshake: None, Xon/Xoff
Copyright © 2000 Escort Memory Systems
LRP820-Series Long-Range Passive Reader/Writer
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