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Line sharing device, fibre optic - RS-422/485 Glasfaser Leitungsteiler - RS-422/485 www.westermo.se AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : info@audin.fr...
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500V 500V 3 750V * For higher data rate, please contact Westermo. Description LD-63B The LD-63B is a line splitter for use in multi-drop fibre optic networks. The LD-63B allows conversion between RS-422/485 and fibre optic. LD-63B is specially developed for Manchester coded protocols with transmission rates over 500 kbit/s.
Power budget The LD-63B is developed for Manchester coded protocols and this means that the power budget will change with the number of preamble bits in the actual protocol. Preamble bits are sent before the actual data and has the function of synchronise units in the network (see figure below).
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Attenuation in fibre cable The values below can differ depending on quality and manufacturer of the fibre-optic cable. Attenuation Attenuation Attenuation Fibre at 820 nm at 1300 nm at single mode (1300 nm) 50/125 µm 3.0 dB/km 1.0 dB/km 62.5/125 µm 3.5 dB/km 1.2 dB/km 100/140 µm...
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Switch settings LD-63B Selection of speed S3:4-1 Over 1 Mbit 1 2 3 4 5 6 7 8 9 Under 1 Mbit 1 2 3 4 5 6 7 8 9 S1:1-9 S2:1-5 Selection of V or Y function Selection of 2- or 4-wire 4-wire 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9...
2 Mbit/s 4 Mbit/s For additional units please contact Westermo 6072-2021 AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : info@audin.fr...
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Example: Multidrop LD-63B LD-63B LD-63B S1:2 ON Y-funktion RS-422/485 RS-422/485 RS-422/485 NB When a multidrop connection ends with an LD-63B and the fibre pair is connected on channel 2, the switch S1:2 must be set (Y-function) Connection of RS-422, RS-485 RS-422/485 POWER RS-422/485...
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OWN COMMENTS ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................6072-2021 AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : info@audin.fr...
Modulator Westermo Teleindustri AB have distributors in several countries, contact us for further information. Westermo Teleindustri AB • S-640 40 Stora Sundby, Sweden Phone +46 16 612 00 Fax +46 16 611 80 E-mail: info@westermo.se • Westermo Web site: www.westermo.se...
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