User Guide

Installation
17
NXP-TPI/4 NetLinx Touch Panel Interface
RS232 Serial Program Port: Connections and Wiring
The following table shows the front panel RS232 (DB9) Serial Program Port connector (male), pinouts,
and signals.
DB9 Port: Connections and Wiring
Using a DB9 for Touch Input Connection and Panel Control
Attach the DB9 touch panel cable (male) to the 9-pin TOUCH INPUT connector (male) on the rear of
the TPI/4. The following table lists the (DB9) RS-232 connector pinouts.
Using a DB9 for Mouse Pass-Thru Control (Hardware Handshaking)
Hardware handshaking describes the interaction occurring between the TPI/4 and a PC which allows
mouse pass-thru control of the PC. This feature is enabled by using the ^TPS command on page 123 to
either enable or disable the pass-thru feature through the TPI/4 front Program port. Use a DB9 cable
(female) to DB9 NullModem (female) cable to connect the Program port on the TPI/4 to the rear RS-232
COM port on the PC. Another option is to use a Full NullModem (male/male) connector to bridge the
gap between to DB9 female connectors.
RS232 Program Port, Pinouts, and Signals
Program Port Connector Pin Signal
2RX
3TX
5GND
7RTS
8CTS
(DB9) RS-232 Connector Pinouts
Pin Signal Function
1 N/A Not used
2 RXD Receive data
3 TXD Transmit data
4 DTR Data terminal ready
5 GND Signal ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 N/A Not used
5
4
3
2
1
9
8
7
6
Male
9
8
7
6
5
4
3
2
1
9
8
7
6
Female
Male
from touch device
on TPI/4