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SFH-30 Quick Start Guide
12
Working with Local Area Networks
If you are using an Ethernet connection between the controller and the
head, they communicate with each other through an Ethernet Local Area
Network (LAN). The controller and head are
devices on the network.
Under certain circumstances you might need to change the LAN settings
of the devices so that the devices not only work together, but do so when
connected to another network. For example:

If you install the controller as part of a multi-component
system.

If you connect your MRMC equipment to a local network.

If you move the equipment between networks.

If you have customised the LAN settings in a head for one of
the above reasons and then sent the head back to MRMC for
servicing. The service might change the LAN settings back to
the factory defaults, and you will need to customise them again
when you get the head back.
Introduction to LAN addresses
Each device on an Ethernet network has a suite of three addresses:

Internet Protocol (IP) address

Subnet (SN) address

Gateway (GW) address
Together, these addresses indicate the device’s identity and location on the
network. Each address is usually written as a group of four numbers
separated by periods. The factory default values used in MRMC
equipment are shown in the next table: