Figure 90: PC-AT Serial Null-modem Cable Pinouts
shows the pinouts for the RJ45 console port on the ExtremeSwitching switches.
Table 86: RJ45 Console Port on Switch
Function
Pin Number
Direction
RTS (request to send)
1
Out
DTR (data carrier detect)
2
Out
TXD (transmit data)
3
Out
GND (ground)
4
—
GND (ground)
5
—
RXD (receive data)
6
In
DSR (data set ready)
7
In
CTS (clear to send)
8
In
shows the pinouts for an RJ45-to-DB-9 adapter.
Table 87: Pinouts for an RJ45 to DB-9 Adapter
Signal
RJ45 Pin
DB-9 Pin
CTS (clear to send)
1
8
DTR (data carrier detect)
2
6
TXD (transmit data)
3
2
GND (ground)
4
5
GND (ground)
5
5
RXD (receive data)
6
3
Console Connector Pinouts
Technical Specifications
148
ExtremeSwitching 5520 Series Hardware Installation Guide
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