Technical Manual

Technical Manual AM Systems
Connections v4.4 Page 18 of 72
6.4 Field Bus termination
For the Field Bus to operate properly the bus needs to be terminated on the first device
and the last device in the bus.
When an antenna is either the first or the last device in the Field Bus, then the bus needs
to be terminated on that device.
In the example in Figure 7 the bus needs to be terminated on the Access Point (which is
automatically done by the Access Point itself) and on RX2.
Figure 7: Field Bus termination example
6.4.1 TRX bus termination
Switch TERM to ON to terminate the bus on the TRX.
6.4.2 RX bus termination
Switch TERM (SW1) to ON to terminate the bus on the RX.
Device Explorer
Ethernet
Terminate Field bus
on this device!
RX1
TRX1
RX2
CrossCONNECT
Access Point
Field bus
automatically
terminated
Cro
Acc