Figure 3-89 RJ45 pins
Table 3-78 Pin denitions of communications ports
RJ45 Pin Signal Description Remark
1 RS485 T+ RS485 transmission + ● Four-wire RS485
communication,
complying with the
Modbus protocol
and YDN1363
protocol
● Baud rate: 9600
bit/s.
2 RS485 T- RS485 transmission –
3 NC Reserved
4 RS485 R+ RS485 reception +
5 RS485 R- RS485 reception –
6 NC Reserved -
7 CANH Positive terminal for CAN
communications
Used to report alarms
to a monitoring unit
and exchange data
between ESMs
connected in parallel.
8 CANL Negative terminal for
CAN communications
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User Manual 3 Components
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