how to arrange RJ45-DB25 converter for the 8 pins

hendra_surja · ‎01-20-2005

Hi guys

I am trying to connect my laptop to cisco router console and so far I have roll-over cable with RJ45-DB25 and my laptop has DB25 connector which I usually use for printer.

can anyone tell me how to arrange the 8 pins from RJ45-db25 converter?I am trying to access the console the cisco router using RJ45-DB25 converter since my laptop does not have DB9 connector for me to use the Cisco management cable.

Any hint will greatly appreciated ... thx...

By the way, I found this website explaining lots of combination for the pinouts...but I am doubting myself to which I should apply...

http://64.233.183.104/search?q=cache:VlyAwdwuGT4J:www.perle.com/support/cabling/documents/RJ45_Non-Standard_Cabling_Example.doc+how+to+wiring+rj45-db25&hl=en&client=firefox-a

I am also able to narrow it down by finding from this website below:

http://pinouts.ru/data/pin_rj45todb25_cisco.shtml

I am confused with pin number 7 since from the diagram above link there are 2 pinouts I can use i.e. 4 and 5 for the RJ45...is that mean I can use either?

well hopefully someone has experiences in this...

sstudsdahl · ‎01-20-2005

From the sound of it, your DB25 port is a parallel port. Unfortunately, you won't be able to use it to console into your router. I'm guessing that your laptop is a newer model and has USB instead of a DB9 serial port. If this is the case, you need to buy a USB to Serial converter.

Steve

hendra_surja · ‎01-20-2005

So what you suggest is to use cisco management cable (RJ45 with DB9) and USB to serial converter (USB-DB) then connect it to my laptop usb?

sstudsdahl · ‎01-20-2005

That is the only way that you will be able to get it to work, short of adding a standard serial port to your laptop. I am forced to use the same method to access my equipment also as my laptop has no serial port either, only USB.

The drivers for the USB to Serial adapter will make it look like a COM port on your laptop. Mine shows up as COM5. This will allow you to use your favorite terminal application with the adapter.

Steve

hendra_surja · ‎01-20-2005

Thanks steve

I will get into it

hendra_surja · ‎01-20-2005

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=41995&item=6737589135&rd=1

Steve, do you think the converter above is the one you meant?

sstudsdahl · ‎01-20-2005

That looks like it would do. There are many brands out now as laptops are now shipping without traditional serial ports.

Steve

hendra_surja · ‎01-21-2005

Alright then. I will look into it

once again thanks