UMAX141200. Wi-Fi to CAN Converter. Version 1
Page: 31-44
6 CONVERTER DEPLOYMENT
The converter can be used in two major ways. One way is to use a pair of converters as a
wireless CAN bridge with or without a baud rate conversion. The second way is to connect the
converter directly to monitoring device or indirectly through a Wi-Fi hotspot and access the
CAN network remotely over the IP network.
6.1 Wireless CAN Bridge
In this configuration, a pair of coupled Wi-Fi to CAN converters can connect two CAN networks
together over the air. This configuration can be extended to several CAN networks running at
different baud rate and connected together using the Wi-Fi to CAN converters, see Figure 26.
CA
N
1
Wi-Fi to CAN Converter #1
CA
N
2
Wi-Fi to CAN Converter #2
Wi‐Fi Antenna
Wi-Fi to CAN Converter #3
CA
N
3
...
Wi-Fi to CAN Converter #5
CA
N
5
AP
STA
STA
STA
Figure 26. Wireless CAN Bridge
One converter should be configured as an Access Point (AP) and all others – as Stations
(STA). Up to 4 STA can be connected to one AP bringing the maximum number of CAN
networks bridged together in this configuration to 5.
This configuration does not require any custom software design. An example of the converter
settings in case of a wireless CAN bridge with two Wi-Fi to CAN converters is described in the
Wireless CAN Bridge Configuration Example.
6.2 Direct Wireless Connection
A Wi-Fi to CAN converter in the wireless CAN bridge configuration, see Figure 26, can be
replaced with a CAN monitoring IP device with a Wi-Fi interface, for example with a laptop or a
smartphone, see Figure 27.
CA
N
Wi-Fi to CAN Converter
Wi‐Fi Antenna
AP
STA
Figure 27. Direct Wireless Connection
