Advantech SMK 920 Reference Manual page 11

3.5 You can connect additional KVM port by adding additional KVM switches and connecting
between them a daisy chain cable. The control will be from the primary KVM by changing
banks selection.
3.6 Optional CAT5 Transmitter Module Available to connect
system or remote console via CAT5 Extender for long
distance connection up to 1000 feet.
3.7 Optional IP Remote Console Module Available for
allow redirect of keyboard, mouse and mouse data to a
remote administration console. It allows you to control
one or many computer locally at the server site or
remotely via the Internet using standard browser.
SMK 920/980/990 Reference Manual １１