Caple C871i Manual do Utilizador descarregar pdf (Página 475)

100

101

Apple II Computer Info

3 Receive Data

4 RTS

5 CTS

6 DSR

7 Signal Ground

8 DCD20 DTR

In the TERMINAL position, the connector is wired as a DCE. It uses the

following pins:

1 Frame Ground

2 Receive Data

3 Transmit Data

4 (incoming flow control, goes to DCD input of 6551 if switch enabled)

5 (looped back from pin 4)

6 (outgoing flow control, comes from DTR output of 6551)

7 Signal Ground

8 (outgoing flow control, comes from RTS output of 6551, also goes to

CTS input of 6551)

20 (incoming flow control, goes to DSR input of 6551)

A switch can also be used to connect the SCTS pin (19) to the DCD

input of the 6551, instead of the RTS/CTS pins.

Here are the switch settings.

Switch SW1-1 through 1-4: Set the default bit rate

1-1 1-2 1-3 1-4 Default bit rate

ON ON ON ON undefined

ON ON ON OFF 50

ON ON OFF ON 75

ON ON OFF OFF 109.92 (110)

ON OFF ON ON 134.48 (134.5)

ON OFF ON OFF 150

ON OFF OFF ON 300

ON OFF OFF OFF 600

OFF ON ON ON 1200

OFF ON ON OFF 1800

OFF ON OFF ON 2400

OFF ON OFF OFF 3600

OFF OFF ON ON 4800

OFF OFF ON OFF 7200

OFF OFF OFF ON 9600

OFF OFF OFF OFF 19200

Switch SW1-5 and 1-6 set the operation mode of the card.

1-5 1-6 mode

ON ON Communications

OFF ON Printer

ON OFF Emulate Apple Serial Interface Card with P8 PROM

OFF OFF Emulate Apple Serial Interface Card with P8A PROM

Switches SW1-7 and SW2-7 select between the standard and secondary

Clear To Send signals when the jumper block is set to TERMINAL.

1-7 2-7 pin

ON OFF CTS

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 475 of 572

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Caple C871i Manual do Utilizador Página 475

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