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IT
LED SHIELD
Se si accende il LED "SHIELD", si tratta di un cavo STP (cavo con
coppie schermate). Se il LED "SHIELD" non si accende, si tratta
di un cavo UTP (cavo senza coppie schermate) oppure di un
cavo STP (cavo con coppie schermate) con un'interruzione sulla
schermatura.
Dati tecnici
Lunghezza cavo max. 300 m
Alimentazione elettrica
4 x batterie a bottone LR44
da 1,5 V
Temperatura di stoccaggio -10°C ... 70°C
Temperatura d‘esercizio 0°C ... 40°C
Dimensioni (L x H x P)
28 x 106 x 25 mm
Peso (con batterie) 52 g
Fatto salvo modifiche tecniche. 01.16
Controllo negativo / interruzione
Se per una coppia non si accende alcun LED, è presente un'interruzione.
(v. capitolo "Errore di cablaggio")
Esempio
È presente uno scambio della coppia di conduttori 3 - 6, nonché un
corto circuito delle coppie di conduttori 1 - 2 e 4 - 5.
si accende
dopo un breve
lampeggio
si accende con
la coppia di
conduttori 1 - 2
acceso
si accende
dopo un breve
lampeggio
si accende con
la coppia di
conduttori 4 - 5
acceso
acceso
si accende
dopo un breve
lampeggio
acceso
si accende
dopo un breve
lampeggio
42


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