
Intelligent Building Series C-Bus Infrared Transmitter Installation Instructions
9.0 Power Surges and Short Circuit Conditions
The C-Bus Infrared Transmitter Unit is not directly connected to mains, however the
mains voltage which is used to supply power to the C-Bus Network must be limited to
the range specified. Each Unit incorporates transient protection circuitry and additional
external power surge protection devices should be used to enhance system immunity to
power surges. It is strongly recommended that overvoltage equipment such as the
Clipsal 970 is installed at the switchboard.
10.0 Megger Testing
Megger testing of an electrical installation that has C-Bus Units connected will not cause
any damage to C-Bus Units. Since C-Bus Units contain electronic components, the
installer should interpret megger readings with due regard to the nature of the circuit
connection.
Megger testing must never be performed on the C-Bus data cabling or terminals as it
may degrade the performance of the Network.
11.0 Standards Complied
Standard/Directive Title
AS/NZS 3100:1997 General Requirements for Electrical Equipment
IEC 742:1983; Requirements for Safety Extra Low Voltage
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