Technical Manual

Technical Manual AM Systems
Connections v4.4 Page 15 of 72
6 Connections
In the following chapters the connections between the TRX board, RX board and
Controller are described.
Furthermore the Printed Circuit Boards (PCB) and the manual adjustments are explained.
6.1 “A” and “B” side of the antenna
The antenna has a front side (A) and a back side (B). These sides are indicated on the
visitor counter in the top/middle of the antenna.
The A-side is the side on which the electronic boards can be accessed.
When using the visitor counter (see also chapter 6.12 (page 34)) try to put all antenna’s in
the AB-AB pattern, i.e. all antennas should be placed in the same way.
Figure 5: Antenna AB-AB pattern
Side B
Side B
Side A
Side A
RX1
RX2
TRX1