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Application
This radio message system is applied for transmission of short circuit and earth fault messages.
The transmission of the messages is performed
a) wireless via telephone net (GSM / mobile)
b) by modem via telephone net
c) in combination of GSM - module and modem |
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General Description
This remote indication system always consists of:
1 pc. transmitter with encoder (fig. 1)
1 pc. receiver with decoder (fig. 2)
on request:
1 pc. external antenna + connection cable. |
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The short circuit and earth fault indicators are usually equipped with a relay with a potential-free closing contact. The contact of this short circuit / earth fault indicator is connected to the transmitter. Up to five short circuit or earth fault indicators can be connected to each transmitter.
The transmitter encorporates an encoder, which furnishes each message of a fault with a code. This message is then transmitted to the receiver, will be decoded and displayed.
The indication can be performed via relay contacts of the transmitter, or it can be indicated as a fault message on a display screen. The respective output consists of a relay contact, which closes its contact in tripped condition.
For operating a GSM-module, a phone card (SIM-card) is used
(contract conditions: card without basic fee with a higher fee per minute)
Under bad transmission conditions of the sender with GSM-module, the application of an external antenna becomes necessary (fig. 3).
The versions transmitter / receiver with GSM-module and transmitter/receiver with modem can be combined arbitrarily.
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transmission from ... -to ...
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Order-No.: |
| indication via ... |
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transmitter
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receiver |
relay contact |
screen |
GSM - Module
(mobile)
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telephone net
(modem) |
42.20.11 |
42.20.12 |
GSM - Module
(mobile) |
GSM - Module
(mobile) |
42.21.11 |
42.21.12 |
telephone net
(modem) |
telephone net
(modem) |
42.22.11 |
42.22.12 |
telephone net
(modem) |
GSM - Module
(mobile) |
42.23.11 |
42.23.12 |
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| external antenna with cable |
42.90.01 |
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Order Data
transmitter
Order-No.: _______
receiver
Order-No.: _______
external antenna with cable
cable lenght _______m
Order-No.: _______
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