Discussion Locked

Console help needed

0 helpful
7 replies
Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.

Hi there,
I need some help on connecting to switches, routers and hubs via a console port. I also need some help on Hyperterminal and how to set it up to be able to do console connections. Pin outs of the serial cables would also be appreciated!!

7 replies

by mckaytech

The Hyperterminal part is pretty easy. Figure out which serial port you're going to use (most often, it will be COM1) and set it up for 9600baud, 8 data, 1 stop, no parity, flow control none.

When you open the New Connection dialog, the Connect To: box will probably have the modem in it by default. Use the dropdown box to select the appropriate COM port. The next box will be the port settings above.

The pinouts are a little more complicated because they will vary by manufacturer. For Cisco products, you'll usually need an RJ-45 to DB9 adapter.

Here's the pinout for that adapter:
RJ45 pin DB-9 pin
8 8
7 6
6 2
5 5
4 5
3 3
2 4
1 7

regards!

paul

by Member 29244100

You'll probably find that a 9-pin to 9-pin "Null Modem Cable" is what you'll need to connect to most non-cisco equipment.

For a 25-pin to 25-pin Serial connect, you could probably get away without a full cable, as follows:

1 ----- 1
2 ----- 2
3 ----- 3
7 ----- 7
4 \ / 4
5 / \ 5

6 \ / 6
8 - - 8
20 / \ 20

This is supposed to show 1,2,3 and 7 straight through, 4 and 5 looped at each local end, and 6,8, and 20 looped at each local end.

You could try crossing 2 and 3 if this doesn't work. Depends on whether the devices are DTE/DCE.

Of course it would be much easier (if the devices had been set up correctly) to TELNET in to their IP address!

Hope this Helps...

Jason.

by estebandelatorre

Nothing strange here. You will need an standard DB-9 connector and a properly configured COM1 under any operating system (nt, win95, win98)
Check under control panel, system, LTP&COM devices the current config of your local com1 port. Set them to 9600 bauds, no parity,data 8 bits, xon/xoff, stop bits=1
Reboot, connect the cable, start Hyperterminal and hit enter twice and wait the answer from the device, it should answer enter hits with an initial screen like username and password.
Also check configuration under cmos setup. Some motherboards have them disabled or miss-configured!

This discussion is closed to new replies.