10-2 RS-232C
10-2-A Outline
RS-232C was originally designed to connect a data terminal device and a modem; it requires a
power source larger than the 5V power source which is used in current personal computers and
also a minus power source. However, since most personal computers are now equipped with
RS-232C, which requires only 3 lines, a user can easily interface the TSL-210 with a PC.
10-2-B How to Use
The basic lines needed for communication are three lines, namely, data send line, data receive
line, and ground line. (The send line goes to the receive port on the other device.) Besides the
three basic lines, there are control lines to show whether data communication is available or not
and lines to know the operating condition of the devices; but these are connected internally for
communication. However, to interrupt communication, to transmit data over long distances, or
to transmit data at high speed, appropriate lines for these purposes will be necessary. Note that
a mismatch in communication condition will prevent current communication even after correct
connection of the devices. Communication conditions include communication method, baud
rate, data length, stop bit, parity check, X control, delimiter, etc.
10-2-C RS-232C of TSL-210
RS-232C of TSL-210 employs a simple 3-line communication method. When connecting it to
a computer, connect TXD to the receive line of the TSL-210, connect RXD to the send line of
the TSL-210, and connect ground line to SG; short-circuit the four terminals RTS, CTS, DSR,
and CD at computer side. To make the communication of command and data precise, send
back-echo after execution of command.
1. Communication Conditions
Communication conditions of the TSL-210 are xed and cannot be changed. Communication
conditions of TSL-210 are as follows:
Start-stop Full duplex
Baud rate 9600 bps
Data length 8 bit
Stop bit 1 bit
Parity None
X control None
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
