NTC controller
56
Carrier Room Conroller (CRC2(
Simplified User
Interface (SUI)
250
Zone User Interface
(ZUI)
Infrared Remote Control (IR2)
and receiver
190
2
1
1
3
1
3
4a
4b
1
1
3
5
6
A
Legend
1 NTC controller
2 Secondary communication bus
3 User interface connection
4 IR2
5 ZUI2
6 CRC2
A Room A
B Room B
161
B