Input / Output Expander Datasheet
This external accessory provides the SYRUS GPS tracking device with extra inputs and outputs that can be used in the same way the built-in Input / Outputs are used. This accessory gives the Syrus a total of 7 ground-activated inputs, and 6 open drain outputs. The IO Expander is fully integrated with the Pegasus Gateway and its APIs.
The input/Output Expander accessory has protection against transient voltage spikes and reverse polarity, but a professional installation from a trusted technician is required when working with wiring inside vehicles.
Follow the pinout guide below and connect all cables of the temperature sensor as follow
Main Power: 12 Volts - 32 Volts.
Connect directly to Syrus green cable
Connect directly to Syrus ground cable from harness
(Brown cable on Syrus 3, and black cable on Syrus 2)
1-wire communication cable with Syrus.
Connect directly to Syrus 1-wire cable (red/white color)
Input 1 [Active: 0V to 2V, Inactive: 2.5V to 30V or Open]
Input 2 [Active: 0V to 2V, Inactive: 2.5V to 30V or Open]
Input 3 [Active: 0V to 2V, Inactive: 2.5V to 30V or Open]
Input 4 [Active: 0V to 2V, Inactive: 2.5V to 30V or Open]
Output 1 [Active: 0V, Inactive: Open or pull-up voltage - Max: 30V]
Output 2 [Active: 0V, Inactive: Open or pull-up voltage - Max: 30V]
Output 3 [Active: 0V, Inactive: Open or pull-up voltage - Max: 30V]
Output 4 [Active: 0V, Inactive: Open or pull-up voltage - Max: 30V]
The 1-wire cable from the Syrus to the input/output expander can be extended up to 20 meters. Make sure you use the same cable gauge or a thicker gauge when extending this cable. Consider using a twisted cable like UTP CAT5e.
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