Expansion module WAGON 8O allows to connect additional 8 binary outputs to the main IOFireBug Engine board.


Technical data

IOFireBug Engine  
Producer 4EACH, s. r. o.
DO specification 8x N-FET Binary output

Max. switching power 50V / 3A

No PWM function

Communication interface SPI
Input voltage By SPI interface or
by external power supply 10 – 30 V DC
Consumption 50mA / 12V
Dimension 65mm x 100mm
Weight 20 g
Operating temperature -20° C to 70° C
Protection reverse polarity


Schematics and desciption


SPI INPUT allows to connect with the IOFireBug Engine or with previous expansion module. SPI OUTPUT allows to connect following expansion module. Closed jumper P5 defines that current Wagon 16I is the last connected module in IOFireBug Engine configuration (in other words, there is no following expansion module connected to SPI OUTPUT).

LEDs are signalizing state of each Binary input.

P3 jumper indicates, whether expander module is powered via SPI bus, or via external power supply (EXT_PWR). D1 LED indicates sufficient power delivery.