Clipsal C-Bus Especificaciones descargar pdf (Pagina 38)

C-BUS TRAINING MANUAL - VOL 1

1.5 C-Bus Cable Current

The maximum amount of current allowed to ﬂow on Cat-5 UTP cable is 2A. This is a limitation of the

cable. If 2 A is exceeded, you run the risk of damaging the C-Bus cable.

1.6 System Voltage

At all points in a C-Bus network, the voltage across a C-Bus unit must be within the range of 15V to

36Vd.c. However, a C-Bus voltage as low as 15Vd.c., may cause unstable communication. As a rule

of thumb, it is strongly recommended that the C-Bus voltage be maintained at 20Vd.c. or higher.

IMPORTANT Within an individual network, try to evenly distribute C-Bus power supplies

along the network. This will ensure a minimal voltage drop over the

C-Bus cable.

1.7 Units per Network

Two factors determine how many units can be put onto a C-Bus Network. These are:

• network impedance

• current consumption.

To calculate the maximum number of C-Bus units allowed on a network, add the current consumption

of all the inputs, system support units and outputs that do not have power supplies. The combined

current consumption of all these devices must not exceed 2A.

Note: The C-Bus Toolkit software will also calculate this for you.

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Clipsal C-Bus Especificaciones Pagina 38