Edwards 3-SSDC1 Signature Driver Controller Modules

The 3-SSDC1 and 3-SDDC1 Signature Driver Controller modules provide an intelligent interface between the 3-CPU3 module and Signature Series devices. Each module contains its own microprocessor used to coordinate, process and interpret information received from and sent to Signature devices. Power and communications is received directly from the control panel rail assembly. The 3-SSDC1 Single Signature Driver Controller module supports one Signature Data circuit, while the 3-SDDC1 Signature Dual Driver Controller module supports two Signature circuits. Both modules occupy one rail space in the fire alarm control cabinet and provide removable field wiring terminals to aid installation. Innovative design gives the 3-SSDC1/3-SDDC1 and Signature devices truly "distributed intelligence". Signature detectors and modules have their own on-board microprocessor communicating with the loop controller in a fully digital communication format. This increases the accuracy of the information coming to and from the loop controller by reducing the effects of capacitance and noise. With decentralized intelligence much of the decision making moves from the loop controller to the devices. Advanced fire detection algorithms processed within the Signature devices effectively end unwanted alarms. Environmental compensation and multiple sensing element decision making operations are resident in the devices. Intelligent devices allow the Signature Controllers to execute communication and system functions with greater speed and low baud rates, increasing the accuracy of information transmitted between the loop controller and devices.Standard Features: One or two circuit versions Dedicated microprocessor control Full digital communication Specialized communication protocol – Less sensitive to cable characteristics – Utilize existing wiring in most applications Loop alarm in under 750 milliseconds Device location supervision – Unexpected additional device addresses – Missing device addresses – Switched device locations – Programmed device parameters Automatic nonvolatile as-built mapping – Stores "actual" and "expected" device data – Stores physical connection sequence including "T" taps Automatic day/night sensitivity Supports up to 250 intelligent Signature detectors and 250 Intelligent Signature Modules Up to five 3-SDDC1s per node – Total of 10 Signature circuits Removable field wiring terminal blocks Multiple survival modes — stand alone Fully backward compatible with 3-SSDC and 3-SDDC Supports the full line of Signature II devices, including carbon monixide detection