AXIS F9111-R Mk II is a 1 channel main unit part of the F-series. 1x F21, F72 or F41 sensor unit can be connected to it. It also has 2 Audio IN, 4x configuration I/O, 1x RS 485, 1x 10-48V DC and 1x USB A. It has an Ethernet port and PoE Class 4. Max 25,5W. AXIS TU6009 Connector 6-pin (for the I/O port), AXIS Connector A 2-pin 2.5 Straight (for the serial port) and AXIS TU6001 Connector 3-in (for the DC port) have to be purchased separately.