EXII-7720SC 3M, EXII-7720SC Datasheet - Page 10

• Manufacturer Part Number: EXII-7720SC
• Description: CONTROLLER EX II SER CAPACITIVE
• Manufacturer: 3M
• Series: MicroTouch™ Controller EXr

Specifications of EXII-7720SC

• Accessory Type: Touch Screen - Controller
• Operating Supply Voltage: 5 VDC to 12 VDC
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 40 C
• Connector Type: RS232
• Rohs Compliant: Yes
• For Use With/related Products: Touch Screen Capacitive
• For Use With: 3M5754 - TOUCH SCREEN CAPACITIVE 12.31"3M5752 - TOUCH SCREEN CAPACITIVE 19.75"3M5750 - TOUCH SCREEN CAPACITIVE 20.65"3M5748 - TOUCH SCREEN CAPACITIVE 17.54"3M5747 - TOUCH SCREEN CAPACITIVE 6.71"3M5745 - TOUCH SCREEN CAPACITIVE 15.68"3M5744 - TOUCH SCREEN CAPACITIVE 10.83"3M5527 - TOUCH SCREEN CAPACITIVE 31.80"3M5526 - TOUCH SCREEN CAPACITIVE 20.65"3M5525 - TOUCH SCREEN CAPACITIVE 19.75"3M5524 - TOUCH SCREEN CAPACITIVE 17.54"3M5523 - TOUCH SCREEN CAPACITIVE 15.68"3M5522 - TOUCH SCREEN CAPACITIVE 12.31"3M5521 - TOUCH SCREEN CAPACITIVE 10.83"3M5520 - TOUCH SCREEN CAPACITIVE 8.75"3M5519 - TOUCH SCREEN CAPACITIVE 6.71"
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 3M5540

10
Handling and ESD Protection
EX Serial Controller Communication Connections
•
•
•
When mounting the sensor and controller, use normal precautions for handling
electrostatic sensitive devices. The EX serial controllers have internal protection to ±27
kV for ESD discharges to the sensor (not to the controller directly) that may occur during
normal operation of the sensor. Refer to the appendices for further specifications.
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™
MicroTouch™ RS-232 serial cable (P/N 7310101). Table 1 describes the pins for this
cable, which connects to a serial communication (COM) port on the PC.
Table 1 COM Connections for EX Serial Controllers
9-pin D
1
2
3
4
5
6
7
8
9
Sleeve
Pin
Shell
A method of establishing the serial data communication between the controller and
your system. The standard 3M™ MicroTouch™ RS-232 serial cable (P/N 7310101)
is recommended.
A method of supplying power to the controller -- either internal or external.
A touch driver with a calibration routine. You can use 3M™ MicroTouch™ MT 7
software which includes the necessary touch driver and utilities software.
2
3
5
1
4
Not used
7
7-pin Molex Wire Color Description
No
connection
No
connection
No
connection
6
7
3M Touch Systems, Inc. Proprietary Information
———
Brown
Red
———
Blue
———
Black
Green
White
Shield
———
3M™ MicroTouch™ Controller EX Serial Reference Guide
Transmit Data (TXD). Pin 2 is the controller’s
Receive Data (RXD). Pin 3 is the controller’s
Data Carrier Detect (DCD).
Connected to DTR and DSR.
output to the host.
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.
DC power jack (+5 VDC).
Cable shield connected to ground
DC power jack (ground)
Chassis (earth) ground.