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1250SM0904R10/09 C-Bus™ Basic Programming

10/2009 C-Bus™ Products Training Course

Each LED on the C-Bus Network Analyser indicates a certain condition.

These conditions are listed below.

LED Status Of LED Check / Action

Power Available OFF / Flash Check that C-Bus Power is available. If LED

flashes, add a C-Bus Power Supply.

Clock Not Present ON Enable a C-Bus Clock on a DIN Rail Unit via Learn

Mode.

Excess Voltage ON Remove a C-Bus Power Supply

Remove Burden ON Remove a Network Burden.

Add Burden ON Add a Network Burden.

Excess Cable ON Reduce the length of the C-Bus cable or split the

C-Bus network with a Network Bridge.

Table 48 - C-Bus Network Analyser LED indicator functions

The push button on the C-Bus Network Analyser temporarily adds a

network burden to the C-Bus network. The network burden will be removed

as soon as the push button is released.

This function is used to test to see if the network impedance is within its

tolerance. If the Add and Remove Network Burden LEDs are flashing

alternately then this indicates that the network is within a stable tolerance.

NOTE: When the C-Bus Network Analyser is connected to a C-Bus

network, it disturbs all C-Bus communications on the bus and causes

temporary instability. The installation may not function as expected during

this period.

Multimeter

A multimeter is one of the most versatile and easily accessible

measurement instruments. It possesses a number of functions that can test

a C-Bus network for unexpected behaviours:

 Ohm meter

 DC voltage meter

 AC voltage meter

 audible continuity test.

When using a multimeter remember to test the C-Bus network at various

points by using successive approximation. This will help identify any

unexpected conditions along the C-Bus network.

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Clipsal C-Bus Bedienerhandbuch Seite 145