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Technical Description

Sealevel Systems ULTRA COMM+422 Page 17

Connector Pin Assignments

DB-9 Pin Assignments

Signal Name Pin # Mode

GND Ground 5

TX + Transmit Data Positive 4 Output

TX- Transmit Data Negative 3 Output

RTS+ Request To Send Positive 6 Output

RTS- Request To Send Negative 7 Output

RX+ Receive Data Positive 1 Input

RX- Receive Data Negative 2 Input

CTS+ Clear To Send Positive 9 Input

CTS- Clear To Send Negative 8 Input

DB-37 Connector Pin Assignments

Port # 1 2 3 4

GND 33 14 24 5

TX- 35 12 26 3

RTS- 17 30 8 21

TX+ 34 13 25 4

RX- 36 11 27 2

CTS- 16 31 7 22

RTS+ 18 29 9 20

RX+ 37 10 28 1

CTS+ 15 32 6 23

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 28 29

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Impulse 3440 Manuale Utente Pagina 20