Overview RevPi Connect 4 - Industrial Raspberry Pi

Position	Connector	Description
1	X2 connector	4-pole, for connecting e.g. sensors for mode RTU. See also How to Connect Serial Devices.
2	Status LEDs	Show the status of the device, see also Status LEDs.
3	RJ-45 sockets	Two independent Ethernet ports. Enable integration into two different networks. Socket A can be addressed in Linux via eth0, B via eth1.
4	Antenna connection WLAN/BT	For connecting a WLAN antenna or a BT device. Only for RevPi Connect 4 with WLAN (Article No.: 100377, 10079, 100380). See also Setting up WLAN and BT.
5	X4 connector	RevPi Connect is supplied with voltage (12 … 24 V) via this connector. Pin assignment see Connecting the Power Supply.
6	X2 connector	Output relay contact (terminal 1 and 2). Input with digital input signal (+24 V) (terminal 3). Pull-down resistor internal (terminal 4).
7	Micro-USB connector	For connecting a USB host system (e.g. a PC to load software on the device).
8	USB ports	Two USB-B ports. For connecting USB 3.2 client devices (e.g. USB hard drives, surf drives).

Position	Connector	Description
1	Locking clamp	Attaches the device to the DIN rail.
2	Ventilation slots	To cool the electronics, air flows through the device from the bottom to the top (chimney effect).
3	PiBridge connectors	Two PiBridge connectors. For connecting I/O modules, see also Connecting I/O Modules and RevPi Gateways. See also Revolution Pi expansion modules.
4	RS485 socket	4-pole, for connecting e.g. sensors for mode RTU. See also How to Connect Serial Devices.
5	Micro HDMI connector	For connecting a HDMI monitor.