GAI-Tronics 1090 Посібник з встановлення та експлуатації - Сторінка 4
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Sensitive microphone, protected by semi porous membrane and
aluminium grille
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Stainless steel auto-dial button(s)
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Call status LED
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Auto-dial numbers are remotely programmable
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Line powered operation (optional supplementary power supply available)
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Optional cast aluminium rear enclosure
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Optional induction loop for the hearing impaired.
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Optional isolated input for power supply
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Optional relay outputs (2)
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Optional logic inputs (4)
2.1. Changes from previous versions
This manual describes an updated range of products introduced in December
2007. For those familiar with GAI-Tronics' products, the list of new or
changed features is as follows:
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New terminal layout (section 6).
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Increased lightning protection (section 9).
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Compliance with railway EMC standards (section 9)
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Optional additional relay outputs and logic inputs (section 6.3 & 6.4)
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Optional isolated input for power supply (section 6.2)
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Improved clear-down mechanisms (section 3.3)
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RoHS compliant
For the full list of product features, please see the specifications in section 9.
3.
Operation / Testing
3.1. Making a Call
To make a call, press the required button and wait for connection. The unit
will seize the line and then automatically dial the pre-programmed number.
3.2. Answering calls
To receive a call, press any button when ringing is heard.
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VR & Help Point