Alcorn Mcbride V+ series, User Manual

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8-10 V16+ Hardware Reference

Connecting a Contact Closure
1. Locate DIP switches SW17, SW18, SW19, and SW20.
2. Verify that the appropriate switches are configured for Contact Closures.
3. Using a Female DB37, attach the appropriate wire from the Input signal pin
(pin 1 for Input1, pin 2 for Input2, etc.) to one of the terminals of the
external contact.
4. Connect the appropriate Input Return pin to the other terminal of the
external contact (pin 20 for Input1, Pin 21 for Input2, etc.)
Figure 5 – Sample connection for a Contact Closure Input to Input1 of the Parallel
Inputs connector.
Disabling Front Panel Buttons
The V16 provides 16 front panel buttons which duplicate the function of the 16
external inputs. This is convenient for test purposes, but it is often desirable to
prevent the unintentional activation of these signals by the front panel. Any
signals that should not be allowed front panel control should be assigned to
inputs 9 through 16. These front panel switches may be individually disabled
using DIP switch SW21.

Disabling front panel buttons 9-16
1. For each button to be disabled, move the corresponding switch of SW21 to
the “OFF” position (Switch 1 for Input9, Switch 2 for Input10, etc.)