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EX II 3000SP Controller Reference Guide
3M Touch Systems Proprietary Information
Table 1 COM Cable for EX II 3000SP Controller
PC Side (9-Pin D) Wire Controller Side (7-Pin Molex) JP3
Pin Color Pin Description
1NC
2 White 4 Receive data (RXD)
3 Red 3 Transmit date (TXD)
4NC
5 Black 2 Ground (also connects to grey wire)
6NC
7NC
8NC
9NC
Shell NC
NC 1 +12V to orange wire
Mounting the Controller
The controller should be mounted on the chassis inside the monitor.
Supplying Power to the Controller
You must supply the EX II 3000SP controller with power internally (+12
VDC) through a custom serial cable configuration. Exact specifications can
be found in Appendix A.
Note: However you supply power, the source must deliver >100 mA @ 12V ±5%
typical with a maximum ripple and noise of 50mV peak-to-peak. Mounting posts
should be grounded to the chassis.
Using a Custom Serial Cable Design
When creating a custom serial cable connection, you can provide power to
the controller through the mating Molex connector:
1. Obtain a 7-pin Molex connector 51004-0700.
2. Attach power and return to the connector (Pin 1: +12V, Pin 2: Ground).