User`s guide

4 Installing the Input Expander
Wiring the Module
Attention! Never wire any module while power is applied.
The module wiring terminals accept one wire per terminal of 17 AWG or
smaller stranded wire. Maximum screw torque is 0.4 Nm.
Example: File Select 1
Simply connect one wire from your contact closure to the screw labeled “1” at
the left of the board, as shown below. Then wire the other side of the contact
closure to one of the screws labeled “VDC” on the bottom.
Example: Loop Strapping a clip
Suppose you want the unit to automatically loop file 6 after bootup. Simply
connect one wire from 6 to VDC and once wire from LOOP to VDC as shown.
Application Note: Making a Test Card
You may want to make a
test card out of your new
Input Expander, and this is
easy to implement with the
wiring diagram to the right.
Just get a couple of LED’s
and a couple of 1KOhm
resistors. Then wire them directly across the screw terminals, if you desire, so
that you now have access to feedback from the unit’s playing and faulted