Reference Guide

46 | Getting Started
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The RJ-45/RS-232 console port is labeled on the S4820T chassis. It is to the left of Fan Module 0, as you
face the PSU side of the chassis.
To access the console port, follow the procedures below. Refer to Table 3-1, "Pin Assignments Between
the Console and a DTE Terminal Server," in Getting Started for the console port pinout.
Accessing the RJ-45 console port with a DB-9 adapter
You can connect to the console using a RJ-45 to RJ-45 rollover cable and a RJ-45 to DB-9 female DTE
adapter to a terminal server (for example, PC). Table 3-1, "Pin Assignments Between the Console and a
DTE Terminal Server," in Getting Started lists the pin assignments.
Step Task
1 Install an RJ-45 copper cable into the console port.Use a rollover (crossover) cable to connect the S4810 or
S4820T console port to a terminal server.
2 Connect the other end of the cable to the DTE terminal server.
3 Terminal settings on the console port cannot be changed in the software and are set as follows:
9600 baud rate
No parity
8 data bits
1 stop bit
No flow control
Table 3-1. Pin Assignments Between the Console and a DTE Terminal Server
S-Series
Console Port RJ-45 to RJ-45 Rollover Cable
RJ-45 to DB-9
Adapter
Terminal Server
Device
Signal RJ-45 pinout RJ-45 Pinout DB-9 Pin Signal
RTS 1 8 8 CTS
NC 2 7 6 DSR
TxD 3 6 2 RxD
GND 4 5 5 GND
GND 5 4 5 GND
RxD 6 3 3 TxD
RJ-45
Console Port