User Manual

OBID
®
classic-pro Installation ID CPR74
FEIG ELECTRONIC GmbH Page 9 of 20
CPR74-Manual M60610-
0e.docx
NOTICE:
 Only one host interface can be used at the same time. Using several host interfaces at
the same time can force malfunctions.
 The reader has to supplied by a limited power supply (e.g. NEC Class 2/LPS power sup-
ply) according IEC EN 60950-1 chapter 2.5, only
 Use only regulated power supply’s.
 The connection cable (RS232TTL, USB, VCC) should be as short as possible and must be
shorter than 3 m to reduce the influence of noise.
 Reversing the polarity of the supply voltage may destroy the device.
 Supply voltages outside the specifications may destroy the device.
 If switching power supplies are used with the module, be sure that there is adequate fil-
tering.
 Noise from the power supply can result in a reduction of the read/write range of the
module.
4.2. Digital Outputs
The Figure 5 shows the circuit diagram of the digital outputs OUT1 – OUT3. The digital outputs are
intended for the connection of external LED’s.
Figure 5: Wiring of digital outputs OUT1...3