DECODE PRM4 Kullanıcı Kılavuzu - Sayfa 10

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3.3 The antenna connector

The antenna is connected on a SMA female connector on the front plate of the device.
The antenna should be for 863 to 870MHz band with an impedance of 50Ω. The
antenna included in the product pack has a 0dBi gain. In case the additional range
ought to be achieved the higher gain antennas must be used.

3.4 Signaling lights

The above figure illustrates the layout of the LED signaling lights. The LED functions
are shown in the following table.
Indicator
LED Power
LED Mode
LED Rx Data
LED Tx Data
Radio modem PRM4 868MHz /User's manual V1.6 / 24.05.2011
PRM4 front plate
Colour
Description
Green
Constantly on when the power supply is
connected, the device's processor is active
and if the reduced power consumption mode
is set to 0 or 2. If this parameter is set to 1 or
3 this indicator flashes with the frequency of
8Hz.
Red
On when the device is in special modes.
Green
On when receiving data.
Red
On when sending data.
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