The RP Series expansion modules and multi-sensors support different modes that can be used for maintenance purposes.
The following maintenance modes are supported:
Offline maintenance mode
Online maintenance mode
The Status LED on the RP Series expansion modules and multi-sensors indicates when the device is in maintenance mode, provided that the LED is configured in show status mode (default mode). For more information, see RP Series Expansion Module LEDs .For more information, see RP Series Expansion Multi-sensor LED .
The device enters maintenance mode and goes offline when you configure the room bus address 0 for the device using its rotary switch.
In online maintenance mode, the device will be online but without running any software other than what makes it possible to read diagnostics from the device and to upgrade the device.
For more information, see Configuring an RP Series Expansion Module or Multi-sensor into Online Maintenance Mode .