UOB8 8 channel universal opto-isolator board - $59

UOB8 Enclosure - $20

The Industrologic UOB8 is an eight channel opto-isolator board assembly that allows microcontroller and other logic circuits to be interfaced to both input and output signals that require opto-isolation.

The UOB8 is designed to allow eight 8 pin DIP split-darlington optocouplers to be installed in pairs into four 16 pin sockets, and the standard UOB8 comes with 6N139 or equivalent high gain split-darlington devices. If required for a particular application, 6 pin darlington optocouplers may be installed in these sockets as well.

The eight optocoupler circuits may be used individually as input or output isolation circuits, and may also be individually used with either darlington or split-darlington optocouplers. The power supply for the split-darlington optocouplers and the output pullup resistors is common to all eight circuits.

Two 16 pin DIP resistor packs are used to select the opto input current and the opto output pullup resistance. The standard UOB8 comes with a 4.7K resistor pack for opto input current and a 10K resistor pack for the opto output pullup resistance.

The UOB8 is available as a complete circuit board assembly, and can be enclosed in an optional ABS plastic enclosure.

http://www.industrologic.com