ZyXEL U-336R User Guide - Page 158
Macintosh Serial Port Pinouts
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Macintosh Serial Port Pinouts The following table shows the wiring of a modem Macintosh hardware handshaking cable: Mac Din 8 1 2 3 4 5 6 7 8 Modem DB 25 4 & 20 5 2 7 3 8 7 Description DTR to RTS and DTR, Hardware Handshaking Out CTS to CTS, Hardware Handshaking In TX- to TXD, Data sent GND, Ground RX- to RXD, Data received not connected GPI to CD, Carrier detected GND, Ground, needed for RS-232 connections 144 Connector Pinouts
144
Connector Pinouts
Macintosh Serial Port Pinouts
The following table shows the wiring of a modem Macintosh hardware
handshaking cable:
Mac
Din 8
Modem
DB 25
Description
1
4 & 20
DTR to RTS and DTR, Hardware
Handshaking Out
2
5
CTS to CTS, Hardware Handshaking In
3
2
TX- to TXD, Data sent
4
7
GND, Ground
5
3
RX- to RXD, Data received
6
-
not connected
7
8
GPI to CD, Carrier detected
8
7
GND, Ground, needed for RS-232
connections