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•
X.21 synchronous serial DTE, Table 8, on page 17
•
Ethernet AUI, Table 9, on page 18
•
Token Ring, Table 10, on page 17
Note In the following tables, pinouts representing DTE and DCE cables use arrows
to indicate signal direction: —> indicates DTE to DCE, <— indicates DCE to DTE.
For more detailed pinout information, refer to the Cisco 2000 Quick-Start Guide.
Table 2
Console Asynchronous Serial Port RS-232 Pinout (25-Pin D
Connector)
Pin
Signal Name
1
1
Frame Ground
2
Transmitted Data
3
Received Data
4
Request To Send
5
Clear To Send
6
Shorted to pin 8
7
Ground
8
Carrier Detect
20
Data Terminal Ready
1. Any pin not referenced on a connector is not connected.
Table 3
Auxiliary Asynchronous Serial Port RS-232 Pinout (25-Pin D
Connector)
Pin
Signal Name
1
1
Frame Ground
2
Transmitted Data
3
Received Data
4
Request To Send
5
Clear To Send
7
Ground
Direction
–
Input
Output
Shorted together internally with pin 5
–
Output
–
Output
Input
Directio
n
–
Output
Input
Output
Input
–
Reference
11
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