Motorola APS120 - Manual (Page 29)

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The “External Inputs” 9-pin serial port on the APS Custom controls contact closures. Pins
1 through 8 are the inputs for the contact closures. When one of these inputs is shorted to
common (Pin 9) by an external device, the contact is considered “closed”, triggering the
script associated with that contact to be executed. The scripts are defined and associated
with a particular contact in the APS Custom PCI.
Each of the eight contacts can be connected to a separate device such as a door latch,
doorbell or motion sensor. Altern a t e l y, all of the contact closures can be wired to a box
used by a receptionist to make announcements with the simple press of a button.
The Contact Closures Option enables you to assign a script number to a contact closure
for up to eight contact closures. Only valid (pre-defined) script numbers are displayed.
To configure contact closures (see Figure 2-1), follow the steps below.
1) Select the Contact Closures button from the PCI Main Dialog Box (Figure 3-1).
2) Enable the closure by selecting the Enable box for that Contact.
3) Select a valid script number using the down arrow key for the script number
field. The script name appears in the Name field.
4) Select OK to return to the PCI Main Dialog Box, or Next to proceed to the
Alphanumeric Messages screen.
NOTE: If the contact closure is not enabled, the script will not be
executed when the contact closure occurs.
NOTE: To disable a contact closure, remove the checkmark ( ✓ ) from the
Enable box associated with that contact.
NOTE: To configure contact closures 5 through 8, select “next” from the contact
closure 1-4 screen.
F i g u re 3-9: Contact Closures Scre e n
3.2.6 Configuring Contact Closur e s