WIRING THE MODULE
SNAP High-Density Digital Module User’s Guide
4
Removing Modules
1.
Remove the module’s hold-down screws.
2.
As shown in the illustration, insert the SNAP
module tool (provided) into the notch at the
base of the module.
3.
Squeeze the module tool against the module
to open the release latch, and pull straight up
on the module to remove it.
WIRING THE MODULE
Cables and breakout boards are available separately to make field wiring easier.
•
Cables plug into the wiring connector(s) on the top of the module and have flying leads or end
connectors that can go directly to field devices or connect through breakout boards or a barrier strip.
Each cable is 6 feet (1.8 m) long.
•
Breakout boards can provide fusing, convenience, and even the ability to manage higher current loads
through G4 digital I/O or mechanical relays.
Specifications and wiring for cables and breakout boards are in Opto 22 form 1756,
, available on our website at www.opto22.com.
The table on the following page shows the available options for wiring field devices to HDD modules. Look in
the left column for the module you have. Breakout boards for the module are listed in the column headings.
Compatible cables are shown in the center table cells. The last column shows the appropriate cable if you are
not using a breakout board.
