Impulse 7204 Bedienungsanleitung PDF herunterladen (Seite 15)

Technical Description

Sealevel Systems ULTRA 485+2.PCI Page 12

Connector Pin Assignments

RS-422/485

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

Technical Note

: Please terminate any control signals that are not going to be used. The most

common way to do this is connect RTS+ to CTS+ and RTS- to CTS-. Terminating these pins, if

not used, will help insure you get the best performance from your adapter.

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Impulse 7204 Bedienungsanleitung Seite 15