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7. General Information

The DSU 1U Signal Converter is a component of the Dupline installation system and is

able to convert one voltage signal for transmission on the Dupline bus.

The input is suitable for AC voltages from 90 V to 265 V. There is no need to observe a

specific polarity. The signal converter activates the encoded channel when exceeding a

voltage difference of 90 VAC and disables the channel when the voltages drops below

60 VAC.

As it is supplied by the Dupline bus and due to the compact housing size of the device,

it is excellently suited for mounting e.g. in switch socket boxes or cavities.

In order to protect both life and components, please observe the following safety instruc-

tions:

• Installation may only be carried out by authorised, trained technicians.

• The Dupline signal supply has to be delivered by sources, which have to be installed

in accordance with the regulations governing protective low-voltage (see VDE 0100,

Part 410, or EN 50090-9-1) as well as the installation has to comply with these require-

ments. Even if extensive protective measures have been implemented in the device,

other voltages at the signal inputs could result not only in the destruction of the device,

but also endanger people. For further information please refer to the Dupline Planning

Aid.

With the DHK 1 hand encoder the input channel can be assigned any address between

A1 and P8 via the flat-plug connector on the front of the DSU 1U. The allocation of the

channels is as follows:

Channel

Input Signal

Channels which are not required should remain uncoded. Encoding the DSU 1U does

not require the Dupline signal. Although the coding is permanently retained, it may al-

ways be overwritten.

Observe the connection diagram when installing. All leads to be connected must be

dead. Connections between the Dupline signal and earth potential will cause malfunc-

tions and are not permissible. In addition, check for the correct polarity of the Dupline sig-

nal.

3931256/2009.02/B - The right to make technical changes reserved!

Operating Instructions

DSU 1U Signal Converter

Description

1- Table of Contents

Channel

Not assigned

2..8

Description