EXII-7720SC 3M TOUCH SYSTEMS, EXII-7720SC Datasheet - Page 38

• Manufacturer Part Number: EXII-7720SC
• Manufacturer: 3M TOUCH SYSTEMS

Specifications of EXII-7720SC

• Operating Temperature (min): -40C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Rad Hardened: No
• Lead Free Status / Rohs Status: Compliant

38
Touch Screen Cable Connections
9-pin D
1
2
3
4
5
6
7
8
9
Sleeve
Pin
Shell
Communication Connector
7-pin Molex Wire
No
connection
2
3
No
connection
5
No
connection
1
4
Not used
7
7
6
The touch screen cable has a 5-pin single row locking female connector that plugs into
the controller. Table 13 describes the pins on this connector.
Table 13 Touch Screen Cable Connector for EX II 7720SC Controllers
Pin
3
1
2
4
5
You will need a method of establishing the serial data communication between the
controller and your system. You can build your own or purchase the standard 3M Touch
Systems RS-232 serial cable (P/N 7310101). Table 14 describes the pins for this cable,
which connects to a serial communication (COM) port on the PC.
Table 14 COM Connector for EX II 7720SC Controllers
Wire Color
Cable shield/drain wireConnects to the flex tail shield, which must not be grounded
Color
———
Brown
Red
———
Blue
———
Black
Green
White
Shield
———
3M Touch Systems Proprietary Information
Description
Data Carrier Detect (DCD).
Connected to DTR and DSR.
Transmit Data (TXD). Pin 2 is the controller’s output to the host.
Receive Data (RXD). Pin 3 is the controller’s receive from the host.
Data Terminal Ready (DTR).
Connected to DSR and DCD.
Power supply ground.
Data Set Ready (DSR).
Connected to DTR and DCD.
Request To Send (RTS).
Connected to CTS.
Clear To Send (CTS).
Connected to RTS.
Cable shield connected to ground.
DC power jack (ground).
Chassis (earth) ground.
DC power jack (+5 VDC).
Description
because the EX II 7720SC drives the flex tail shield with an AC
waveform.
Upper left (UL) corner
Upper right (UR) corner
Lower right (LR) corner
Lower left (LL) corner
EX II Serial Controllers Reference Guide