EXII-7720SC 3M TOUCH SYSTEMS, EXII-7720SC Datasheet - Page 36

• 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

36
Female Connector on the Touch Screen Cable
Communication Connector
The touch screen cable has a 12-pin (2 x 6) dual row female connector that plugs into the
controller. Table 11 describes the pins on this connector. The touch screen connector
always exits towards the serial cable.
Table 11 Touch Screen Cable Connector for EX II 17xxSC Controllers
Pin Wire Color
1
2
3
4
5
6
7
8
9
10
11
12
All EX II 17xxSC controllers have an attached RS-232 communication cable with a 9-pin
D female connector. Table 12 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 12 COM Connector for EX II 1700SC Controllers
9-pin D
1
2
3
4
5
6
7
8
9
Sleeve
Pin
Shell
———
———
———
———
Gray
Green
Orange
Brown Cable
shield/drain wire
White
Red
Black
Blue
7-pin Molex
No
connection
2
3
No
connection
5
No
connection
1
4
Not used
6
7
7
3M Touch Systems Proprietary Information
Description
NOVRAM interface
NOVRAM interface
NOVRAM interface
+5 VDC
Power supply ground
Chassis (earth) ground
+12V input
Connects to the flex tail shield, which must not be grounded because the EX II
17xxSC drives the flex tail shield with an AC waveform.
Upper right (UR) corner
Lower right (LR) corner
Upper left (UL) corner
Lower left (LL) corner
Wire Color
———
Brown
Red
———
Blue
———
Black
Green
White
———
———
Power supply ground.
Request To Send (RTS).
DC power jack (+5 VDC).
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.
Data Set Ready (DSR).
Connected to DTR and DCD.
Connected to CTS.
Clear To Send (CTS).
Connected to RTS.
Cable shield connected to ground.
DC power jack (ground).
Chassis (earth) ground.
EX II Serial Controllers Reference Guide