7
Figure 2-6
7
8
Baud Rate
OFF
OFF
9600bps
ON
OFF
4800bps
OFF
ON
2400bps
ON
ON
1200bps
Table 2-4
2.3.5 Terminal Matched Resistance Setup
There are two connection modes of device terminal 120
Ω
resistance, which has already existed
on the power board. Please refer to Figure 2-7 for more details.
120Ω
1-2
ON
2-3
OFF
Figure 2-7
Refer to Figure 2-9 for the default connection mode, at this moment, the jumper cap on the
power board is connected to the location 2~3 of the socket and 120Ω resistance hasn’t been
connected yet.
Figure 2-8
It needs to plug out the jumper cap from 2~3 location when it needs to connect to 120
Ω
resistance, and then connect to the location of 1~2. In this case, 120
Ω
resistance is connected to
the circuit, which is shown in Figure 2-9.
