ZyXEL Communications P-662HW-63, User Manual

Page: 458 / 561

Prestige 662HW Series User’s Guide
Appendix A Pin Assignments 458
Appendix A
Pin Assignments
Cable Pin Assignments
In a serial communications connection, generally a computer is DTE (Data Terminal
Equipment) and a modem is DCE (Data Circuit-terminating Equipment). The Prestige is DCE
when you connect a computer to the console port. The Prestige is DTE when you connect a
modem to the dial backup port.
Figure 289 Console/Dial Backup Port Pin Layouts
3
3. Products without flow control only use pins 2,3 and 5.
Table 164 Console/Dial Backup Port Pin Assignments
CONSOLE PORT RS – 232 (FEMALE) DB-9F DIAL BACKUP RS – 232 (MALE) DB-9M
Pin 1 = NON
Pin 2 = DCE-TXD
Pin 3 = DCE –RXD
Pin 4 = DCE –DSR
Pin 5 = GND
Pin 6 = DCE –DTR
Pin 7 = DCE –CTS
Pin 8 = DCE –RTS
PIN 9 = NON
Pin 1 = NON
Pin 2 = DTE-RXD
Pin 3 = DTE-TXD
Pin 4 = DTE-DTR
Pin 5 = GND
Pin 6 = DTE-DSR
Pin 7 = DTE-RTS
Pin 8 = DTE-CTS
PIN 9 = NON.
The CON/AUX port also has these pin assignments. The
CON/AUX switch changes the setting in the firmware only
and does not change the CON/AUX port’s pin assignments. Prestiges with a CON/AUX port also have
a 9-pin adaptor for the console cable with
these pin assignments on the male end.