Technical and mechanical design

The compact build allows for mounting the devices on a standard rail or a wall.

		6	Plug-in terminal blocks with screw terminals Universal inputs/outputs, field device supply
		7	Connector for I/O modules TXM
		8	Plug-in terminal block with screw terminals Relay outputs
		9	PXC4.M16-2: Plug-in terminal block with screw terminals COM, Modbus RTU PXC4.M16S-2: Plug-in terminal block with screw terminals MS/TP
		10	PXC4.M16-2: Plug-in terminal block with screw terminals MS/TP
		11	DIP switch for bus termination and polarization COM, MS/TP
1	Plastic housing	12	Slider for mounting on DIN rails
2	Service button (identification in network and WLAN on/off)	13	Eyelets for cable ties
3	LEDs for communication and state	14	Holes for wall mounting
4	PXC4.M16-2: Plug-in terminal block with screw terminals KNX PL-Link	15	Date / Series and Serial number
5	Plug-in terminal block with screw terminals Power supply	16	QR code for default WLAN access (description see Technical data)

LED displays

LED	Color	Activity	Function
RUN	Green	Continuously ON Continuously OFF Flashing	Device operational Device not operational Start-up or program halted
RUN	Red	Continuously OFF Continuously ON Rapid flashing	OK HW or SW fault Firmware or application missing/corrupted
MSTP	Yellow	Flashing Continuously OFF	Communication BACnet MS/TP No communication
COM TX (PXC4.M16-2)	Yellow	Flashing Continuously OFF	Communication No communication to subsystem
COM RX (PXC4.M16-2)	Yellow	Flashing Continuously OFF	Communication No communication to subsystem
SVC	Red	Continuously OFF Flashing	OK Device is not configured
		Flashing per wink command	Identification of device after receipt of wink command

WLAN	Blue	Steady OFF Steady ON Flashing	WLAN inactive WLAN active and at least one WLAN client connected WLAN active and no WLAN client connected
Service button		Press 0.2 ... 1 s	ID in the network
Service button		Press 1 ... 3 s	WLAN enable/disable WLAN disables automatically after 10 minutes if no client is connected
		As per description	Do the following to reset the device to factory state: Power off the device. Power on the device. Wait until all LEDs light up and turn off again, then press the Service button. Keep the Service button pressed until all LEDs light up, then release the button. All LEDs go off, the device restarts. Wait until the device has fully started – unconfigured (green RUN LED and red SVC LED are flashing)