Product Description; Assembly And Product Functions - Sitec Delta Operator's Manual

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Product Description

1. Assembly and Product Functions

The DELTA intercom system consists as a minimum of a central control with mains adaptor,
a main control and an extension.
The central control is the central point of the system. The electricity supply, the main control
and the extension are connected to it.
One extension can be connected directly to the central control. Up to three more extensions
can be connected to the central control using signal boosters, giving a total of up to four
possible extensions.
These details all refer to our standard central control. However, we also offer an enhanced
central control, to which one extension can be directly connected and up to seven further
extensions using signal boosters, thus offering up to eight extensions.
The intercom main control is operated by the system operator (employee).
Communication with the public (customer) is via a swan-neck microphone and a loudspeaker,
which are both integrated into the main control.
Communication is usually in full duplex mode, i.e. both sides can speak and hear at the same
time. A 'speech balancer' automatically controls the direction of speech, and noisy feedback
is thereby kept at a minimum.
If the building construction is particularly unfavourable, the intercom may have to be operated
in half-duplex mode or in alternating-speech mode, to avoid feedback.
The employee controls the various functions of the intercom or the connected equipment
(announcement loudspeaker, door opener).
Accessories such as a headset or an additional loudspeaker can be connected to the main
control using appropriate connectors.
In addition, various functional parameters can be modified using the main control menu, in
order to adapt the intercom to the specific operational environment.
The customer uses the extension to communicate with the employee. An extension always
consists of a microphone and a loudspeaker, but they can vary in their design and
configuration, depending on the type of extension.
Some extension designs have a call button so that the customer can call for attention. When
pressed, a gong sounds at the main control. The communication always starts on the
employee's side, so that the customer does not have to press any other buttons.
Note: Where there are several extensions, the employee has to select the appropriate extension
with which he wishes to communicate. Simultaneous connection to several extensions is not
possible.
The extensions cannot communicate with each other either.
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