ABB NETA-21 Installation And Startup Manual page 10

10 NETA-21 remote monitoring tool
The figure below shows the data connections in a star topology when a fiber optic link
is used.
NETA-21
PC
ETH1
Tx
ETH2
Rx
PC
ABB drive,
converter or
inverter
RDCU
RDCO
T R
Drive/converter/inverter 1 to CH0 ... drive/converter/inverter 9 to CH8
Link to Ethernet networks
ABB drive,
converter or
inverter
RDCU
RDCO
T R
NDBU-x5
V106
CH1
V105
V104
CH0
V103
V102
MSTR
V101