Meinberg C28COM Manual do Utilizador descarregar pdf (Página 8)

Pin assignment of the 9pin D-SUB

The assignment of the module’s D-SUB connector allows the connection directly to a

RS-232 port of a personal computer. If a longer cable is needed it is possible to

lengthen it by using a 1:1 cable. The maximum length depends on the RS-232-driver

circuit of the computer and can’t be specified generally for this reason.

Pin assignment of the computer’s RS-232 ports

The serial RS-232 ports of a computer are assigned as follows:

9-pin D-SUB Connector 25-pin D-SUB Connector

Pin Name Description Pin Name Description

1 CD Carrier Detect 1 Shield Shield Ground

2 RxD Receive Data 2 TxD Transmit Data

3 TxD Transmit Data 3 RxD Receive Data

4 DTR Data Terminal Ready 4 RTS Request to Send

5 GN D System Ground 5 CTS Clear to Send

6 DSR Data Set Ready 6 DSR Data Set Ready

7 RTS Request to S end 7 GN D System Ground

8 CTS Clear to Send 8 C D C arrier Detect

9 RI Ring Indicator 20 DTR Data Terminal Ready

22 RI Ring Indicator

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 21 22

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Meinberg C28COM Manual do Utilizador Página 8