AirSense Stratos Remote Display Unit (RDU) (9-30802)

The AirSense Stratos Remote Display Unit (RDU, 9-30802) is an LED bargraph repeater and status display that remotely mimics the status of a Stratos aspirating smoke detector. It is in 19in rack format, so several units can be mounted side by side in a 19in rack, or a unit can be mounted on its own in the 9-30817 housing.

The RDU connects to the SenseNET bus, which carries data between the unit and the detector, and a bank of switches selects which detector is repeated. It shows basic OK and fault indication, 4 alarm levels and a bargraph of the obscuration level, and is powered from a nominal 24V DC supply.

Key features

• LED status indication and bargraph display of obscuration level
• Shows OK, fault and 4 alarm levels
• 19in rack mount format; single units can use the 9-30817 housing
• Connects to the SenseNET (RS-485) bus; detector selected by switches
• Optional relay card (9-30803) adds relay outputs for the 4 alarm flags and fault

Technical specifications

• Operating voltage: 18 to 30V DC (24V DC nominal)
• Current consumption: 40mA
• Networking: SenseNET (RS-485) on-board
• Status indication: LED
• Dimensions: 53 x 130 x 31mm (W x H x D)
• Operating temperature: -10°C to +60°C
• Relative humidity: 0 to 90% non-condensing
• Environment: indoor