Contec SPI-6941-LV - RS232;422;485 Selector: JP5;JP4

CHAPTER 3 – J u mpe r S etti n g
30 SPI-6941-LV
3 . 3 R S 232 / 422 / 485 S e l ec t o r : J P 5 / J P 4
R S - 232
( D e f au l t )
J P 5
2 4 6 8 10 12 14 16 18 20 22 24
1 3 5 7 9 11 13 15
17 19 21 23
J P 4
2 4 6 8 10
1 3 5 7 9
R S - 422
J P 5
2 4 6 8 10 12 14 16 18 20 22 24
1 3 5 7 9 11 13 15
17 19 21 23
J P 4
2 4 6 8 10
1 3 5 7 9
R S - 485
J P 5
2 4 6 8 10 12 14 16 18 20 22 24
1 3 5 7 9 11 13 15
17 19 21 23
J P 4
2 4 6 8 10
1 3 5 7 9
1. For RS-485, TX+(pin 2) and RX+ (pin 3) must jumper together
inside the D type connector.
2. TX- (pin 1) and RX- (pin 4) is the same.