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Indicators
Safety Classification
Protection Rating
Rated insulation voltage
Dielectric test voltage
Width
Depth
Height
Weight
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R(un) LED: Green indicates that the
TB820 is operational
F(ault) LED: Red indicates a fault
condition; Reset and communications
errors on the electrical ModuleBus turns
the LED on.
P(owok) LED: Green indicates that the
d.c./d.c. converter generates a valid
+5V d.c.
ORx1 and ORx2 traffic LEDs: Yellow
(blinking) indicates that the TB820 is
receiving data on the two optical
ModuleBus channels respectively.
ERx traffic LED: Yellow (blinking)
indicates the TB820 is receiving data on
the electrical ModuleBus. It also
indicates that the electrical Modulebus
channel is supervised.
Class I according to IEC 536; (earth
protected)
IP20 according to IEC 529, (IEC 144)
50V
500V a.c.
58 mm (2.39")
122 mm (4.8")
170 mm (6.7") including latch
0.3 kg (0.66 lbs.)
Whyˆr
123
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