Gefen EXT-HDKVM-LAN, User Manual, Page: 41 / 62

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USB under Multicast Mode
When connecting USB devices to the DVI KVM over IP, the functionality is similar to that
of video and RS-232. There are two USB modes available in multicast mode: Active per
request mode and Active on link mode.
For an example, we’ll begin with the last diagram and connect another keyboard and
mouse device to Receiver R1. This will allow us to control the computer from two separate
locations.
Figure 2.9 - Using USB devices under multicast mode.
1. Make sure the desired Sender and Receiver units are set to multicast mode. Refer to
Configuring Multicast Mode if necessary.
2. Access the Web interface for the Sender unit.
3. Click the
Functions
tab.
4. Locate the USB over IP group and make sure the Enable USB over IP box is
checked. This is the default setting.
LAN
Receiver unit
Receiver unit
DVI Out
USB cable
DVI Out
Sender unit
Sender unit
Sender unit
DVI In
DVI In
DVI In
07
07
07
05
09
R
1
S
1
S
2
S
3
R
2
Operating the DVI KVM over IP
USB Control