The SB-593 Satellite Expansion Board plugs into the PXL-500 to provide additional functionality at a cost far less than that of adding another controller. The SB-593 gives each PXL-500 an additional 8 general purpose inputs and 4 general purpose outputs. Two of the inputs and outputs can be con gured to manage a second door, making the PXL-500 a cost e ective two door controller while still providing an additional 6 inputs and 2 outputs.

• 10 Inputs (20 using zone doubling technology)
• 10 Outputs
• Auto-detect technology (No jumpers or DIP switches)
• 1220m (4000ft) 4 conductor RS485 expansion bus
• Comprehensive LED status indicators

Access Add-on 2 door plugin PCB for expansion of door capacity

The NXT-4X4 Input/Output Expansion Module provides functionality to any Doors NetXtreme access control system by adding auxiliary I/O that can be used for additional access control functionality, monitoring non-reader doors or other devices, and creating powerful action sequences by linking input triggers to outputs. The module can be connected anywhere along the RS-485 trunk, most commonly at the controller or near a reader. One module can be added per trunk, allowing up to an extra 8 inputs and 8 outputs on an NXT-2D Controller and an extra 16 inputs and outputs on an NXT-4D controller.

The module's relays are re-assignable and interchangeable with the main controller's relays. The module can be mounted next to the door providing local door control and local door alarm functions while minimizing the cable bundle from door to controller. The unit also has a port to plug in a reader interface module (NXT-RMX) to allow Keri MS reader signals to be sent down the RS-485 line.

Features

• 4 auxiliary Inputs and 4 auxiliary Outputs per module
• Up to 4 modules (16 Inputs and Outputs) can be added per NXT-4D, up to 2 modules (8 Inputs and Outputs) per NXT-2D
• Re-assignable/Interchangeable with controller's door I/O
• 4-State Supervision on Inputs
• Can be used for Door Forced and Door Held Open Alarms as well as Auxiliary REX Inputs
• Latch Integrity, Bond Sensor or other general purpose functions
• Flash Memory for easy upgrades
• Powered from Controller
• Status Indicator LEDs for power, communication, and relay position
• Dedicated Tamper Input
• Quick Disconnect Connectors
• Locking Metal Enclosure (optional without)