Kipp&Zonen COMBILOG Data Logger - Manual (Page 94)

The bus termination can be carried out in various ways.
It can either be carried out via external resistors and a separate
power supply, independent of the module, according to figure
10.5. In this case we recommend to use the indicated resistors
for the bus termination.
Or the bus termination is connected with the bus users at the
beginning and at the end of a bus line. Most of the RS485 con-
nections for controls, computers, repeaters, interface convert-
ers, etc. offer this option.
Also with data logger COMBILOG 1022 this option is given. Via
the bus termination plug which is available as accessory and
installed at the right or left port on the front side of the device,
the bus termination at this module can be additionally connec-
ted. Two jumpers which connect the bus with the bus termina-
tion in the data logger are integrated in the bus termination
plug.
Figure 10.6 Bus termination on the COMBILOG 1022
Note: Instead of the bus termination module separate jumpers
can also be used for the bus termination. In this case, please
Hardware Manual COMBILOG 1022 94
VP
DGND
Ru
Rt
Rd
A
B