Mitsubishi Electric GT1685 Connection Manual page 689

RS485 connection diagram 4)
(For 1 pair wiring)
Serial multi drop
* 2
connection unit
SDA
SDB
RDA
RDB
SG
*1 Set the terminating resistor selector to "OPEN".
*2 Set the terminating resistor selector to "110 ".
*3 Set the 1pair/2pair signal selection switch to "1pair" when using the connection conversion adapter.
In that case, transition wiring is not necessary between SDA and RDA or SDB and RDB.
*4 This is the connector pin No. of GT14, GT11, GT105 , or GT104
*5 Make sure to ground a cable shield line by applying Class D Grounding (100
RS485 connection diagram 4)
(For 2 pair wiring)
Serial multi drop
* 2
connection unit
RDA
RDB
SDA
SDB
SG
*1 Set the terminating resistor selector to "OPEN".
*2 Set the terminating resistor selector to "330 ".
*3 Set the 1pair/2pair signal selection switch to "2pair" when using the connection conversion adapter.
*4 This is the connector pin No. of GT14, GT11, GT105 , or GT104
*5 Make sure to ground a cable shield line by applying Class D Grounding (100
* 1 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
* 3
SG
5
RSA
* 5
3
RSB
8
CSA
4
CSB
9
1.4.3 Terminating resistors of GOT
* 1 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
* 5
3
RSB
8
CSA
4
CSB
9
1.4.3 Terminating resistors of GOT
* 1 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
* 3
SG
5
RSA
* 5 * 5
3
RSB
8
CSA
4
CSB
9
main unit.
or less).
* 1 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
* 5 * 5
3
RSB
8
CSA
4
CSB
9
main unit.
or less).
20. GOT MULTI-DROP CONNECTION
20.4 Connection Diagram
* 2 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
* 3
SG
5
RSA
3
RSB
8
CSA
4
CSB
9
* 2 * 3
GOT side
* 4
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
RSB
8
CSA
4
CSB
9
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