Remote Output Module (ROM)

Expand through Daisy Chaining

Up to four ROMs can be operated in a “daisy-chain” configuration on each host P-Bus port. This provides a maximum expansion capability of eight ROMs per SC4 Site Controller. Each ROM provides four sets of remotely controllable Form-C relay contact outputs. The relays are of the mechanically latched type, so the contact state is preserved even if power to the ROM is lost.

The status of each output for every ROM on the host controller’s P-Bus is viewable from the host’s built-in web server or via SNMP. ROM output states are also controllable via the web interface or via SNMP. LED indicators on the ROM also provide a local indication of each relay’s state.

Each ROM also contains an internal temperature sensor and an optional humidity sensor.

Control Your Equipment Remotely

• General-purpose remote control of external equipment
• Simple “point-of-use” modular architecture
• Communications and powering provided via the “P-Bus” RS485 port on PBT site controller devices
• Up to four ROMs on each site controller P-Bus port
• Four configurable & controllable output points
• Output states are preserved during loss of system power
• Internal temperature sensor
• Optional internal humidity sensor
• Powered from P-Bus
• Modular quick-disconnect terminal blocks