Omron Photo Microsensors 
Dimensions and wiring.

Home sensors are highly recommended on all shutter axis (camera, projectors, fader), and are advisable but not mandatory for translation axes (North/South, East/West, Zoom).

This diagram shows how to wire an IBM PC parallel port to an Omron OR508ND home sensor. The "5 VDC Supply" must be regulated, as this voltage will be directly driving the computer's parallel port, and must be TTL compatible. Note that up to five home senors can be monitored by each parallel port (on pins 10-13 and 15). You can also use the Kuper Logic Connector to accept more sensor inputs.

The Omron OR508ND or equivalent microsensors are available from DigiKey 1-800-344-4539. The ordering information supplied below are DigiKey prices as of April 1995, which have probably changed by now.

Description Digikey Part# Price
Omron OR508ND Microsensor OR508ND $8.97
4 Pin connector for the above OR527ND $1.90

— Omron Home Sensor Options —

Purchasing Comments

Wiring Comments

OR508ND / EE-SX670. Dimensions are in milimeters.
4 pin connector (OR527ND / EE-1001) not shown.

For more info on home sensors, see this home sensor thread in the OPCS forum.

© Copyright 1997, Greg Ercolano. All rights reserved. To report documentation errors, send email to