Cisco 4908G-L3 - Catalyst Switch Manuale - Pagina 18
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Cisco - Connecting a Terminal to the Console Port on Catalyst Switches
Console Port Mode 2 Signaling and Pinouts
This section provides the signaling and pinouts for the console port in mode 2 (port mode switch in the
"out" position). See
Table I-4
straight-through cable to connect a terminal.
Table I-4: Console Port Pinouts (Port Mode Switch Out)
Console Port
Pin (signal)
1 (RTS)¹
2 (DTR)
3 (RxD)
4 (GND)
5 (GND)
6 (TxD)
7 (DSR)
8 (CTS)¹
¹Pin 1 is connected internally to Pin 8.
Catalyst 8510CSR, and 8540CSR Switches Console
Port Pinouts
The console port on the route processor is an EIA/TIA-232, data communications equipment (DCE),
DB-25 receptacle. Both Data Set Ready (DSR) and Data Carrier Detect (DCD) are active when the
system is running. The Request To Send (RTS) signal tracks the state of the Clear To Send (CTS) input.
The console port does not support modem control or hardware flow control. The console port requires a
straight-through EIA/TIA-232 cable.
Table J-1: DB-25 Console Port Pinouts
Pin
Signal Direction Description
1
GND
2
TxD
<
3
RxD
>
4
RTS
>
5
CTS
>
6
DSR
>
http://www.cisco.com/warp/public/473/9.html (18 of 19) [9/4/2003 12:36:03 PM]
for the pinouts. Mode 2 gives you the option of using a standard RJ-45
Console Device
Input/Output
Output
Output
Input
GND
GND
Output
Input
Input
Table J-1
lists the console port pinouts.
Ground
Transmit Data
Receive Data
Ready To Send¹
Clear To Send¹
Data Set Ready (always on)²