Mounting Instructions ID ISC.ANT.PS-A, ID ISC.ANT.T-A
FEIG ELECTRONIC GmbH
Page 19 of 28
E N G L I S H
9. Functional description of the OBID
®
i-
scan-system
The identification system OBID
®
i-
scan is an inductive transmission system for touchless
identification (ID) of moving objects. The components of the write/read system facilitate the writing
and reading of passive data carriers (Transponder) with an actual frequency of 13.56 MHz, the so-
called „smart labels“. It consists of a reader ID ISCLRxxx-x, one or several antennas and one or
more smart labels used as a data storage medium.
These smart labels are generally paper badges or tags with a wafer-thin transponder integrated for
communicating with RFID read/write devices.
If a smart label gets into the antenna’s local magnetic field, it is powered and may be read and
written. Data is received by the same reader antenna that also produces the magnetic field and
sends the data to the data carrier.
The magnetic field and all data sent and received by the data carrier are able to penetrate almost
all non-conductive materials, so that even hidden writing and reading is possible.
The reader’s anticollision function facilitates the simultaneous reading of up to 50 smart labels per
second.
10. Performance features for the ID ISC.ANT.PS-A and ID ISC.ANT.T-A
The ID ISC.ANT.T-A is a 1:1 transformer with galvanic isolation.
At an operating frequency of 13.56 MHz the device has an input and output impedance of 50
Ω
with phase angle compensation between current and voltage.
The galvanic isolation between Reader and antenna ensures that noise which can occur especially
in industrial environments is effectively suppressed without compromising the payload signals.
The ID ISC.ANT.PS-A is a 3 dB power splitter with galvanic isolation between the input and the 2
outputs. At an operating frequency of 13.56 MHz the impedance is balanced to 50
Ω
on all in- and
outputs.
Both outputs are internally wired in series. The galvanic isolation may be bridged using two
jumpers.
Both units are suitable for indoor or outdoor installation. The connector cables Reader and unit ID
ISC.ANT.T is 7.2 m long and between Reader and unit ID ISC.ANT.PS is 3.6 m long. Therefore
extend the antenna connector cable from the Reader to the antenna to a total of 10.8 m respec-
tively 7.20 m.
