Apple CS II Guide de l'utilisateur télécharger pdf (Page 351)

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101

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From: David Empson

017- What kind of cable should I use to connect a modem

to my IIc?

Here is the pinout of the IIc serial port looking at the back of the computer:

DIN-5F (female)

socket with

Apple's numbering

5 1

4 2

The functions are:

1 Handshake Out (nominally DTR)

2 Data Out (TxD)

3 Ground

4 Data In (RxD)

5 Handshake In (nominally DSR)

To connect a IIc to a typical modem use the following pinout for a non-hardware

handshaking cable:

IIc Modem

DIN-5M Dsub-25M DIN-5 Dsub-25M

plug male connector

1 Handshake Out 20 DTR

2 Data Out 2 TxD 1 5 ,--------/ /---------.

3 Ground 7 Gnd 2 4 \ 1 2 ... 12 13 /

4 Data In 3 RxD 3 \ 14 ... 25 /

5 Handshake In 6 DSR* `------/ /-------'

*You might want to use pin 8, DCD in some cases.

To connect a IIc to a modem with a 9-pin connector you can use the pinout below

for a non-hardware handshaking cable:

IIc Modem

DIN-5M Dsub-9M DIN-5 Dsub-9M

plug male connector

1 Handshake Out 4 DTR

2 Data Out 3 TxD 1 5 ,--------/ /---------.

3 Ground 5 Gnd 2 4 \ 1 2 ... 4 5 /

4 Data In 2 RxD 3 \ 6 ... 9 /

5 Handshake In 6 DSR* `------/ /-------'

*You might want to use pin 1, DCD in some cases.

1 2 ... 346 347 348 349 350 351 352 353 354 355 356 ... 385 386

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Apple CS II Guide de l'utilisateur Page 351

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