Filter
Top Products
Chapter 35 Product Specifications
ES-2048 User’s Guide
271
Table 108 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 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.
Switches with a CON/AUX port also have a 9-pin
adaptor for the console cable with these pin
assignments on the male end.
Table 109 Ethernet Cable Pin Assignments
WAN / LAN ETHERNET CABLE PIN LAYOUT
Straight-through Crossover
(Switch) (Adapter) (Switch) (Switch)
1 IRD + 1 OTD
+
1 IRD + 1 IRD +
2 IRD - 2 OTD - 2 IRD - 2 IRD -
3OTD
+
3 IRD + 3 OTD + 3 OTD
+
6 OTD - 6 IRD - 6 OTD - 6 OTD -