US Robotics 005689-03 Manual page 9

The Serial Interface The Serial Interface
Macintosh computers require an 8-pin
mini-DIN hardware handshaking cable for
high-speed communications. This cable is
included in your Sportster for Macintosh
package.
Hardware Handshaking Cable Pin Hardware Handshaking Cable Pin
Assignments Assignments
Mini DIN-8
Connector
Handshake Output HSKo
Handshake Input HSKi
Transmit Data+ TXD-
Ground GND
Receive Data+ RXD+ 8
Receive Data- RXD- 5
Transmit Data+ TXD+ 6
Gen. Purpose Input GPI
Note:
The Handshake Output pin is connected to both
pins 4 (RTS) and 20 (DTR) on the DB-25 connector.
DB-25
1 4 RTS
20 DTR
2 5 CTS
3 2 TXD
4 7 GND
7 GND
3 RXD
not connected
7 not connected
9