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REMOTE INTERFACES
Serial Interface Connector
TP04300 Series Interface & Applications Manual 4-11
Section H:
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Serial Interface
Serial Interface Connector
The system I/O panel provides a DB9P (9-pin male) connector with a nonstandard pinout. The
TP04300A does not support handshaking. For compatibility with host computers that expect
handshaking (such as those computers that were connected to Temptronic TP04000A and
TP04200A Systems), a special cable should be used that connects pin 4 to pin 6, and pin 7 to
pin 8, on the host computer side. No connection should be made to those pins on the
TP04300A side. Alternatively, if handshaking is disabled on the host, a straight through cable
(NOT a null modem) with female connectors on both ends can be used to hook the System up
to a PC-compatible host computer.
Serial Interface Parameters
The Serial interface parameters, are as follows:
Pin Number Function/Signal Level
Shell Chassis ground
1 DCD - no connection
2 Serial data out from the TP04300A
3 Serial data into the TP04300A
4 DTR - Always high output from the TP04300A (tied to +8
through 3.3K ohms).
5 Signal ground
6 DSR - no connection
7 RTS - always high output from the TP04300A (tied to +8v
through 3.3K ohms).
8 CTS - tied to pin 4
9 RI - no connection.
Setting Parameter
Baud Rate 300, 1200, 2400, 4800, 9600, 19200,
38400, 57600
Data Bits Fixed at 8
Parity Fixed at No Parity
Stop Bits Fixed at One (1)
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