WAGO-I/O-SYSTEM 758
Device Description
17
758-915
Bluetooth
®
ETHERNET Gateway
Manual
Version 1.1.0, applicable from FW/HW Version 01/01
Table 7: System connection, M12 Socket on Device
Pin Pin assignment
1 Tr
2 R
3 Transmit -
4 Receive -
3.3.3
Antenna
The device is equipped with an antenna. Good reception conditions exist when the
front of the device is oriented centered to the remote device with which the radio
link is to be established.
Figure 7: Aligning the device
As the device comes equipped with a circular polarized antenna, rotation of the
device around the link axis between the local and remote device does not have any
adverse impact on link quality.
The directional alignment (antenna) diagrams for the antenna are given in the
following figures for a frequency of 2.450 GHz.
The horizontal diagram illustrates the two-dimensional top view of the
electromagnetic field of the antenna, with the antenna being the center point. At a
beam angle of around 60° the antenna provides excellent reception levels;
reception continues to be good up to an angle of 90°, whereas reception markedly
deteriorates at beam angles of 110° and greater.