OBID
i-scan
®
UHF
Integration
ID ISC.MRMU102-A
FEIG ELECTRONIC GmbH
Page 10 of 21
Integration
Manual M21112-1e-
ID-B.docx
4.1.2. Internal Antenna ANT 4
Additionally the reader is equipped with an internal antenna (ANT4). The internal antenna supports
far field transponders as well as near field transponders. The internal antenna is located in the bot-
tom left corner of the housing and is marked with an antenna symbol. The maximum read range of
the antenna in combination with a far field transponder is approx. 40 cm. In combination with a
near field transponder the maximum read range is approx. 5 cm.
Figure 2: Position of the internal antenna
4.2. Power Supply via Connector X1
The reader needs to be supplied by an external voltage of 12 V DC to 24 V DC. Connect the 12 -
24 V DC/
supply voltage to socket X1 on the circuit board.
Terminal
Name
Description
X 1
X1 / inside
Vcc
Vcc – supply voltage (+)
X1 / outside
GND
Ground – supply voltage (-)
Table 4: Connecting the supply voltage
NOTE:
Reversing the polarity of the supply voltage may destroy the device.
The unit has to supplied by a listed NEC Class 2/LPS Power supply, only
NOTE:
The power supply is supplied with a DC/
plug 2.5mm x 5.5mm. This is compatible with
the readers socket X1.
