The SNAP-UDC-HDB-G4 breakout board connects a SNAP 32-point digital module to Opto 22 G4 modules
on the board, so you can switch or monitor much larger loads than the SNAP module can handle by itself.
For example, a SNAP 32-point digital output module like the SNAP-ODC-32-SNK can switch loads of 0.25 amps per point, but by going through G4 output modules on the board, it can switch loads of up to 3 amps per point.
The SNAP-UDC-HDB-G4 holds 32 G4 modules (sold separately), one for each point on the SNAP module. G4 modules on the board can be a mix of AC and DC, but they must all be the same voltage (5 V, 15 V, or 24 V), and they must be all inputs or all outputs, depending on the SNAP module they are connected to.
Use the following SNAP high-density digital modules with this rack:
The module connects to the board using a SNAP-HD-BF6 cable
. The board provides spring-clamp terminals for easier field wiring.