PRICOM Design Layout Lighting Solution User Manual page 14

Layout Lighting Solution – Connections
The Trigger Inputs of the Layout Lighting Solution are NOT optically isolated which
means you need to be careful about sharing ground pins with external sources.
As a convenience to your wiring, you simply need to connect buttons between the
appropriate trigger input and the ground terminal.
Figure 7 – Trigger Input Terminal Strip (P3)
Terminal Name
1 GND
2 Trigger-1
3 Trigger-2
4 Trigger-3
5 Trigger-4
The trigger input terminals (Trigger-1 to Trigger-4) provide connection to the trigger
inputs. Terminal #1 (GND) is connected to the local ground for all 4 trigger inputs. Since
these inputs are intended for Push Buttons, there is no need for power, and we have
provided the appropriate pull-up resistors on the board.
The following example shows how to connect switches (or relays for that matter) directly
to the Layout Lighting Main Board. Each Trigger Input can then be individually
connected to the GND pin though any suitable switching device such as a push-button or
relay.
Figure 8 - Simple Trigger Input Button Connections
Description
Trigger Ground
Trigger #1 Input
Trigger #2 Input
Trigger #3 Input
Trigger #4 Input
PRICOM Design Page 12