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Updated 2018-01-15T04-10Z |
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eyeSDN
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eyeSDN
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Function:eyeSDN serves as a detector of activities on the S/T bus of a Basic Rate Interface (BRI)*). As soon as a data transfer is taking place (or even a sufficiently large spurious signal is present), the indicator lights up. E. g. a fax is coming or ... Examples of suspect activities:
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Installation:Be certain that the power supply plug of your NT1 is plugged into the mains outlet, or the S/T bus is otherwise supplied sufficiently with energy for the Normal Mode.
Connect eyeSDN to the S/T-Interface jack, |
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eyeSDN does not use more energy than a Restricted Mode compliant Terminal Equipment 1 (TE1), therefore you can attach several eyeSDN at different workstations, where you usually stay. |
If the procedure "AlwaysOn/DynamicISDN (AO/DI)"
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In order to enable the selective ability of eyeSDN, AO/DI must not be active. |
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Also, without AO/DI, there are sorts of Terminal Equipment 1 (TE1) or Private Branch Exchanges (PBX), which do not leave the S/T bus in peace during inactive phases, so the display lights up continuously (see also inside the FAQ list). Therefore, buy equipment only with right of return (as for instance with CONRAD), until its compatibility is verified. |
Characteristics:
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Extent of delivery: |
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Price: |
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in Germany 35.70 €
(= 30.00 € net + 19% VAT) / abroad (net) 30.00 € = 20.00 £ = 40.00 $ / Forwarding expenses see here |
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Supply from stock**) | 2 weeks right of return | 2 years warranty | ||
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Option: |
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Obtainable likewise from - for example -
For restricted space available, a flexible version may be necessary. They exist in retail trade at one and a half up to three times the price. Even a 2-fold gender changer may be useful, e. g. CONRAD 261025. |
*) On ordering your ISDN access you have selected the type of interface. If you have rented continuous monitoring, or an Extended Rate Interface instead of a Basic Rate Interface, then |
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- because of the continuous monitoring - the data traffic with the switching center of the telephone service provider stops only in case of fault. Then, eyeSDN is a mere Normal Mode indicator: |
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It does not distinguish between connection breaks and (perhaps
suspicious) connections, but between Normal Mode
and Restricted Mode.
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Some English technical terms in German (by
http://www.cis.ohio-state.edu/~jain/cis788-95/isdn/index.html, http://www.scan-technologies.com/tutorials/ISDN%20Tutorial.htm, http://www.t-versand.de/isroot/tversand/static/lexikon/lexikon.html et al.): |
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Rough automatic translation (click one of the 2 banners immediately here below): |