Iris expansion rear connectors

Item	Description of connector
A	mDNS and MAC addresses (2). It is helpful to make a note of the mDNS number as this can be used to reach the device IP address if for any reason you cannot reach the panel on your network.
B	Analog matrix connector (RJ45)
C	Expansion panel connector (RJ45)
D	Auxiliary audio connector (DB25M)
E	GPIO connector (DB25F)
F	Micro USB connector, used for upgrades.
G	LAN 1 and LAN 2 (RJ45). Use either connector (not both) and do not connect more than one IP port to your network at the same time. This may lead to a broadcast storm and could seriously degrade the performance of your network.
H	Sleeve locking power connector (12V, 60W). When connecting the sleeve-locking power connector, be sure to push until the sleeve locks into the device.
I	Grounding screw