Nexcom APPC 1220T Bedienungsanleitung PDF herunterladen (Seite 41)

Chapter 2: Jumpers and Connectors

APPC 1220T/1221T/1520T/1521T/1720T/1721T User Manual

Pin Definition Pin Definition

1 TXD-: Transmit Data Negative

RXD-: Receive Data Negative

2 TXD+: Transmit Data Positive

RXD+: Receive Data Positive

3 Reserved 4 Reserved

5 Reserved 6 Reserved

7 Reserved 8 Reserved

9 Reserved (could be a 5V or 12V

power pin)

RS485

1 5

COM2 Port (Isolation with RS422/485)

Connector type: DB-9

Connector location: COM2

Pin Definition Pin Definition

1 DCD#: Data Carrier Detect 2 RXD#: Receive Data

3 TXD: Transmit Data 4 DTR#: Data Terminal Ready

5 GND 6 DSR#: Data Set Ready

7 RTS#: Request To Send 8 CTS#: Clear To Send

9 RI#: Ring Indicator (could be a 5V

or 12V power pin)

RS232

Pin Definition Pin Definition

1 TXD-: Transmit Data Negative 2 TXD+: Transmit Data Positive

3 RXD+: Receive Data Positive 4 RXD-: Receive Data Negative

5 GND DCD#: Data Carrier Detect 6 RTS-: Request To Send Negative

7 RTS+: Request To Send Positive 8 CTS+: Clear to Send Positive

9 CTS-: Clear To Send Negative

(could be a 5V or 12V power pin)

RS422

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Nexcom APPC 1220T Bedienungsanleitung Seite 41