Installation Manual

IDENTIFICATION Installation ID ISC.M02.M8
FEIG ELECTRONIC GmbH Page 9 of 16 M02M8-IM-e_02.doc
3.2.3 Connection of the external antennas
Up to 8 external antennas can be connected.
For the connection of the external antennas 8 antenna connectors (X1..X8 respectively A1..A8) are
available.
The connector type is U.FL-R-SMT from the company Hirose. .
Alternatively a 16pin connector can be used for the connection of the antennas.
Figure 1 shows the pin assignment.
Figure 1: Antenna connector‘s
Note:
A coaxial cable, U.FL-LP-088, is used to connect the antenna. The antenna cable should
be no longer than 1 m. The use of other cable length are possible after consulting the
manufacturer.
The input impedance for the antenna must be calibrated to a value of
50
(3
3°).
A not correct tuned antenna can destroy the reader.
The optimum working quality of the antenna should be in a range of QB = 10...20.
For measuring the working quality the antenna must be connected with a 50
-source,
e.g. a network analyzer or a frequency generator
When connecting an antenna, ensure that it does not exceed the permissible limits pre-
scribed by the national regulations for radio frequency devices.
The ultraminiatur coax connector can be used for up to about 20 connection cycles. For
the disconnection the „Extraction Tool“ must be use according to the recommendation
from the manufacturer.