Specifications

Touch Controllers Reference Guide92
Communication Connector
All Serial/SMT controllers have an attached RS-232 communication
cable with a 9-pin D female connector. Table 16 describes the pins for
this cable, which connects to a serial communication (COM) port on
the PC. A 9-pin to 25-pin adapter is available.
Table 16. COM Connector (9-pin D, RS-232) for Serial/SMT Controllers
9-pin D 7-pin Molex Wire Color Description
1No
connection
——— Data Carrier Detect (DCD).
Connected to DTR and DSR.
2 2 Brown Transmit Data (TXD). Pin 2 is the
controller’s output to the host.
3 3 Red Receive Data (RXD). Pin 3 is the
controller’s receive from the host.
4No
connection
——— Data Terminal Ready (DTR).
Connected to DSR and DCD.
5 5 Blue Power supply ground.
6No
connection
——— Data Set Ready (DSR).
Connected to DTR and DCD.
7 1 Black Request To Send (RTS).
Connected to CTS.
8 4 Green Clear To Send (CTS).
Connected to RTS.
Sleeve 6 White DC power jack (+5 VDC).
Pin
Shell
7
7
———
———
Cable shield connected to ground.
DC power jack (ground).
Chassis (earth) ground.