7
5.
HDMI4/USB4: HDMI® video and USB Type-B ports for
connecting the fourth computer.
6.
Audio Out: 3-pin Euroblock connector for connecting an
external amplifier.
7.
Ethernet: RJ45 port for connecting a computer or Ethernet
network.
8.
RS232: 9-pin DB-9 serial connector for connecting a computer
for RS-232 control.
9.
USB FW Upgrade: USB Type-A port for connecting a USB flash
drive to perform a firmware upgrade.
10.
12VDC: DC barrel connector for connecting the included AC
power adapter.
11.
Power On/Off: Master power switch for turning the unit on or
off.
IR Remote Control
1.
Standby: Press the button
to put the system into
standby or to power it on.
2.
Mute: Press the button to
turn audio muting on or off.
3.
Lock: Press the button to
lock or unlock the front
panel buttons.
4.
Info: Press the button to
view the system
information.
