The SIGA-CT1 Single Input Module, SIGA-CT1HT High Temperature Single Input Module and SIGA-CT2/SIGA-MCT2 Dual Input Modules are intelligent analog addressable devices used to connect one or two Class B normally-open Alarm, Supervisory, or Monitor type dry contact Initiating Device Circuits (IDC). The actual function of these modules is determined by the “personality code” selected by the installer. This code is downloaded to the module from the Signature loop controller during system configuration. The input modules gather analog information from the initiating devices connected to them and convert it into digital signals. The module’s on-board microprocessor analyzes the signal and
decides whether or not to input an alarm.
LED Indicators: Dual LEDs (green and red) for status:
Green blinks for normal operation.
Red blinks when active/alarm condition detected.
Microprocessor: Onboard processing for signal analysis and alarm decision-making, enabling standalone operation if loop controller polling stops.
Memory: Non-volatile, stores serial number, device type, job number, and historical data (e.g., hours of operation, last maintenance date, alarm/trouble counts).
