Feig Electronic OBID i-scan ID ISC.MAT-A, Руководство по установке

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OBID i- scan
®
Installation ID ISC.MAT-A
FEIG ELECTRONIC GmbH Page 22 of 28 M21200-0de-ID-B.doc
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L I S H
8.2. Connecting the antenna conductor
To connect the antenna conductor, two connection pads are provided on both ends of the board.
Contact can be made using a solder or screw connection. The two resistors R1 and R2 (see
Fig. 9:
Board layout ) should be thermally joined to the antenna conductor for heat dissipation (by means
of a screw connection, for example).
For the antenna conductor we recommend copper tubing, strip aluminum or the shielding of a
coaxial cable, e.g. RG213, RG214 or RG58.
The inductance of the antenna conductor must lie within the range indicated in the technical data
(0.6 – 2.5
µ
H).
8.3. Connecting the antenna cable
The antenna cable is soldered on to the board at X5 Pin 102. We recommend a coaxial cable with
an impedance of 50 Ω (e.g. RG58) and a cable length of
4
λ
(approx. 3.62 m for RG58). A cable
gland is used as strain relief.
Table 5 Jumpers X5
Contact ID Description
X5 / Pin 1 1 Signal / internal conductor
X5 / Pin 2 2 Ground – Antenna / Shield
Fig. 8: Tuning board ID ISC.MAT-A with connection cable