


Apple Macintosh XL Serial B
25 PIN D-SUB CONNECTOR
Pin |
Name |
Description |
1 |
GND |
Ground |
2 |
TxD- |
Transmit Data line |
3 |
RxD- |
Receive Data line |
4 |
n/c |
Not connected |
5 |
n/c |
Not connected |
6 |
HSK/DSR |
TRxCB or CTSB |
7 |
GND |
Ground |
8 |
n/c |
Not connected |
9 |
n/c |
Not connected |
10 |
n/c |
Not connected |
11 |
n/c |
Not connected |
12 |
n/c |
Not connected |
13 |
n/c |
Not connected |
14 |
n/c |
Not connected |
15 |
n/c |
Not connected |
16 |
n/c |
Not connected |
17 |
n/c |
Not connected |
18 |
n/c |
Not connected |
19 |
RxD+ |
Receive Data line |
20 |
TxD+/DTR |
Connected to DTRB |
21 |
n/c |
Not connected |
22 |
n/c |
Not connected |
23 |
n/c |
Not connected |
24 |
n/c |
Not connected |
25 |
n/c |
Not connected |
Copyright © The Hardware Book Team 1996-2004.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2002-01-10