Gefen EXT-DVIKVM-LAN, User Manual, Page: 46 / 64

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Unicast and Multicast Modes
Operating the DVI KVM over IP
9. Reboot the Sender unit by one of these methods: 1) Disconnect and reconnect the
power supply. 2) Click the
Reboot
button on the Web interface. 3) Type
reboot
in
the Console API Command text box and click the Apply button.
10. Repeat steps 1 through 9 for each Sender and Receiver on the network that will be
using RS-232.
Note that the RS-232 feature behaves similar to video when using unicast or
multicast
modes:
► Unicast Mode
When in unicast mode , only a single Receiver will be able to communicate with the
RS-232 host (Computer) device, as shown below:
► Multicast Mode
When using multicast mode , multiple Receiver units will be able to communicate with
the RS-232 host (Computer) device.
For instance, if we expand on our original example by connecting a Gefen 4x1 HD
Switcher to Receiver A, B, and C (not shown), then we could control all three devices
simultaneously.
LAN
Receiver un t
Receiver unit
DVI Out
DVI Out
Sender unit
Sender un t
Sender unit
DVI In
DVI In
DVI In
G V
AUDDEC-N
RS-232 controller
(Computer)
RS-232 device
(GTV-AUDDEC-N)
1
B
A
2
3
12
12
02
05
09