IDENTIFICATION
ID ISC.LRU3000 / LRU3500
4 Terminals
Page 17 of 30
4.4 Digital Inputs on connector X5
The optocouplers on Terminal X5 are galvanically isolated from the Reader electronics and must
therefore be externally supplied.
Fig. 13: Optocoupler pin-outs IN1
– IN5
Fig. 14: Internal and possible external wiring of the optocoupler inputs
Optocoupler input (X5 / IN1-5):
The input LED associated with the optocoupler is connected internally to a series resistor of 500
Ω
.
For supply voltages of greater than 10V the input current must be limited to max. 20 mA by means
of an additional series resistor (see Table 11)
