*GLS-SIM
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See Figure 1 for details.
See Figure 2 for details.
Device Wiring
GLS-SIMs have two distinct sensor ports, allowing for up to two distinct inputs on each GLS-SIM. Inputs can come from any number of devices, including occupancy sensors, photocells, key switches, and contact closures.
Occupancy Sensor
All occupancy sensors to be used with a GLS-SIM must be a "non-system" sensor. Cresnet or ZUMLINK sensors should be connected via Cresnet or ZUMLINK instead of the sensor port of a GLS-SIM.
Photocell (Daylight Sensor)
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Key Switch
There are two primary kinds of key switches: momentary and maintained. In addition to official Crestron key switches, there are third party manufacturers of key switches and buttons which can be used as inputs for a GLS-SIM.
Crestron Momentary
Crestron Maintained
Note: feedback is not available on maintained key switches, since the feedback status of the switch is apparant from the position of the key.
Other Manufacturers
DIP Switches
Every GLS-SIM has four DIP switches which can be used to adjust the behavior and function of the two sensor ports on the GLS-SIM. For every DIP switch, the "up" position corresponds to "on", while the "down" position corresponds to "off". Switches 1 and 2 correspond to sensor port 1, while switches 2 and 3 correspond to sensor port 2.
The table below covers the function of each of the DIP switches and their affect on the GLS-SIM.
| Port | DIP Switch | Setting | Result |
| 1 | 1 | On (Up) | Disables pull-up resistor for port 1 |
| Off (Down) | Enables pull-up resistor on port 1 (port 1 will output 5V) | ||
| 2 | On (Up) | Normal polarity (high input reads as "true") | |
| Off (Down) | Inverted polarity (high input reads as "false") | ||
| 2 | 3 | On (Up) | Disables pull-up resistor for port 2 |
| Off (Down) | Enables pull-up resistor on port 2 (port 2 will output 5V) | ||
| 4 | On (Up) | Normal polarity (high input reads as "true") | |
| Off (Down) | Inverted polarity (high input reads as "false") |
Occupancy Sensor
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Photocell (Daylight Sensor)
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Key Switch
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Troubleshooting
