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© 2003 Wasp Technologies, Inc.
5
COMMUNICATION
INSTALLATION
The RS-232 port of the WDT2200 can communicate with the serial port of a host computer.
There are two ways to carry out communication sessions:
(1) LOCAL : Directly connect to the serial port of your computer system.
5.1.1 LOCAL CONNECTION:
In the Local connection method, the WDT2200 is directly connected by a null modem cable to
the serial port of the host computer. This is the way to
download
or
upload
files from/to
your
WDT2200. Note that the communication parameters must be matched on your WDT2200 and
host computer or the communication will fail.
CONNECTING THE WDT2200 TO A HOST COMPUTER
Host
Computer
9 Pins
WDT2200
2 RXD
3 TXD
3.TXD
2 RXD
5 GND
5 GND
7.RTS
8 CTS
8 CTS
7 RTS
When the flow control is set to CTS/RTS, the CTS (RTS) signal of one end is necessary to be
linked to the corresponded RTS (CTS) on the other end.