Mitsubishi Electric GT1685 Connection Manual page 688

RS485 connection diagram 3)
(For 1 pair wiring)
Serial multi drop
* 2
connection unit
* 1
SDA
* 1
SDB
RDA
RDB
SG
*1 Use the twisted pair cable for SDA/SDB.
*2 Set the terminating resistor selector to "110 ".
*3 Set the terminating resistor setting switch of the GOT main unit to "Disable".
*4 Connect a 110
*5 Make sure to ground a cable shield line by applying Class D Grounding.
RS485 connection diagram 3)
(For 2 pair wiring)
Serial multi drop
* 2
connection unit
* 1
RDA
* 1
RDB
* 1
SDA
* 1
SDB
SG
*1 Use the twisted pair cable for SDA/SDB, RDA/RDB.
*2 Set the terminating resistor selector to "330 ".
*3 Set the terminating resistor setting switch of the GOT main unit to "Disable".
*4 Connect a 330
*5 Make sure to ground a cable shield line by applying Class D Grounding.
20 - 20
20. GOT MULTI-DROP CONNECTION
20.4 Connection Diagram
* 3
GOT side
SDA1
1
SDB1
2
RDA1
3
RDB1
4
SG
9
SDA2
* 5
5
SDB2
6
RDA2
7
RDB2
8
FG
10
1.4.3 Terminating resistors of GOT
terminating resistor to the GOT to be a terminal.
* 3
GOT side
SDA1
1
SDB1
2
RDA1
3
RDB1
4
SG
9
SDA2
* 5
5
SDB2
6
RDA2
7
RDB2
8
FG
10
1.4.3 Terminating resistors of GOT
terminating resistor to the GOT to be a terminal.
* 3
GOT side
SDA2
5
SDB2
6
RDA2
7
RDB2
8
SG
9
SDA1
1
SDB1
2
RDA1
3
RDB1
4
FG
10
* 3
GOT side
SDA2
5
SDB2
6
RDA2
7
RDB2
8
SG
9
SDA1
1
SDB1
2
RDA1
3
RDB1
4
FG
10
* 3
GOT side
SDA1
1
SDB1
2
RDA1
3
R
RDB1
4
* 4
SG
9
SDA2
5
SDB2
6
RDA2
7
RDB2
8
FG
10
* 3
GOT side
SDA1
1
SDB1
2
RDA1
3
R
RDB1
4
* 4
SG
9
SDA2
5
SDB2
6
RDA2
7
RDB2
8
FG
10