Prestige 662H/HW Series User’s Guide

Appendix A

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.1

Figure 1 Console/Dial Backup Port Pin Layout

Table 1 Console/Dial Backup Port Pin Assignments

 

 

 

 

CONSOLE Port RS – 232 (Female) DB-9F

DIAL BACKUP RS – 232 (Male) DB-9M (Not on all

 

 

models)

 

 

Pin 1 = NON

Pin 1 = NON

Pin 2 = DCE-TXD

Pin 2 = DTE-RXD

Pin 3 = DCE –RXD

Pin 3 = DTE-TXD

Pin 4 = DCE –DSR

Pin 4 = DTE-DTR

Pin 5

= GND

Pin 5

= GND

Pin 6

= DCE –DTR

Pin 6

= DTE-DSR

Pin 7

= DCE –CTS

Pin 7

= DTE-RTS

Pin 8

= DCE –RTS

Pin 8

= DTE-CTS

PIN 9 = NON

PIN 9 = NON.

 

 

The CON/AUX port also has these pin

Prestiges with a CON/AUX port also have a 9-pin

assignments. The CON/AUX switch changes

adaptor for the console cable with these pin

the setting in the firmware only and does not

assignments on the male end.

change the CON/AUX port’s pin assignments.

 

 

1.Pins 2,3 and 5 are used.

Appendix A Cable Pin Assignments

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