Serial Communication; Figure 9-5: Rs485 Line Terminal Board; Table 9-1: Table Of Rs485 - Power One AURORA PVI-STRINGCOMB Installation And Instruction Manual

Operation and installation manual
(PVI-STRINGCOMB (-S, -MC, -S-MC) - Rev:1.0)

9.3.2 Serial Communication

Connect the 3 incoming wires of the RS485 line (485+, 485- and RTN)
respectively to connector A,B,C pin 1 and the 3 outgoing wires to connector
A,B,C pin 2, as indicated in Figure 9-5 and in Table 9-1 given below. If the
device is the last of the chain, there will be only 3 wires.
If the device is the last of the chain, the termination resistance must
be enabled by the special micro-switch (Figure 9-7).
The resistance is connected when the micro-switch is set to ON
(towards the board inside).
It is recommended to be careful when changing switch position, use a
plastic tool.
+ 485
1 2
1
2
RTN
1 2

Figure 9-5: RS485 line terminal board

Table 9-1: Table of RS485 connection
A
- 485
B
C
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