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ICC/ICW Smart TV Controller
iC-Net Zones
To simplify controlling groups of devices, iC-Net is divided into 16 zones of 255 devices. All the
devices within each zone can be controlled simultaneously by sending a command to a single “virtual
device number”.
For example, noting the zone chart below, if we send a Power On command to device #256, any TV
controller numbered between 257 and 511 will instantly turn on. If we send a Power Off command to
device #4095, all devices in the system will turn off.
This is an immensely powerful feature, because most systems can only address one device at time. So
if you need to turn off all 50 TV in a zone, you would need to send 50 commands. In addition to the
hassles of creating multiple commands, there would be a long delay between the first and last
command. One command, instant response is easier.
As we noted before, ABC Media Retrieval Systems reserve Zone 0 for devices used in the central
control system, 1 -15 for iC-Net devices. This structure may be useful for your application, or you
could use Zone 0 just like any other iC-Net zone.
Zone
First Device Last Device
Virtual Device
0
1
255
0
1
257
511
256
2
513
767
512
3
769
1023
768
4
1025
1279
1024
5
1281
1535
1280
6
1537
1791
1536
7
1793
2047
1792
8
2049
2303
2048
9
2305
2559
2304
10
2561
2815
2560
11
2817
3071
2816
12
3073
3327
3072
13
3329
3583
3328
14
3585
3839
3584
15
3841
4000
3840
All Zones
4095
Tip:
You've probably figured out that you never want to assign a
virtual device
number to an
actual device
in the system. If you assigned #1536 to a device, all the TV controllers in Zone
6 would respond every time you sent a command to that one device.