Cisco Usb To Rj45 Console Cable Driver

1. Cisco Usb To Rj45 Console Cable Driver Windows 10

Nov 21, 2013. Cisco finally got with the program and began releasing new equipment with a USB console port to go along with the older RJ45 one. All that's needed now for connection to the console is a USB A to Mini-B cable and the Cisco USB Console Windows Driver. If you don't have the latter, don't worry!

I have a new Cisco 3750X switch and I want to connect to it via console.

Only.. this switch does not have a DB9 connector on it, its Serial port is RJ45. I have a USB to RJ45 cable, and am on Windows 7, but cannot seem to get Putty or other terminal clients to work.

How can I do a console connection to this switch? Thanks!

2 Answers

Many network devices use the Yost RJ45 pinout for RS-232 console communications. Cisco is probably the best known, but certainly not the only. The switch should have come with a DB9 to RJ45 blue cable. You can just pickup any USB-DB9 Serial adapter (though I highly recommend getting one with a Prolific PL2303HX Rev D Chipset, as they 'just work' and are compatible with a wide array of OSes).

Once you get your Serial-to-USB adapter to work. You still require the proper serial line settings for the majority of Cisco switches.

FYI, they are..
9600 baud
8 data bits
1 stop bits
parity - none
flow-control xon/xoff or none.

Lastly - a lot of the newer Cisco equipment does come with mini-USB console port which which prevents you from having to purchase a serial-to-usb adapter. However you need to have the Cisco console port driver downloaded on your computer. Here's a quick guide with some useful info.

Not the answer you're looking for? Browse other questions tagged ciscoterminalconsole or ask your own question.

I am aware of the RJ-45 to DB9 adapter commonly used on cisco routers to access console. I am aware of the USB to DB9 adapters to allow laptops without serial to get a serial port. I am looking for a USB to RJ-45 adapter so I don't have to chain two adapters together. I have searched everywhere but even the pre-packaged solutions seem to have the two adapters chained together. Does such a thing exist? If it doesn't is there some technical reason it cannot? It seems like a manufacturer would just have to wire the DB9 end of the USB adapter differently and it would work just fine plugged straight into the console port of the router.

6 Answers

I haven't seen one. It would have limited usefulness as Juniper, Cisco, Linksys, APC, HP Procurves, our Raritan power strips, etc all use different cables -- and some use different baud rates.

We've got a box of cables in our cage labelled with the baudrate/connection protocol and devices that it works with.

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Cisco Usb To Rj45 Console Cable Driver Windows 10

It is technically possible. I don't see it as being a big seller though.

If there is still interest I produce a cable assembly to do just this. As for the need to have a box of cables for different devices and each of them labeled with the communication protocol and baud rate I am at a loss for words. The baud rate and communications protocol utilized by a specific device has nothing to do with the cable the data is transmitted on. I have a feeling that if you took the time to actually pin out all of the cables you use to support your equipment you will likely find (2) pinout variations when the cable is terminated to an 8P8C (typically though incorrectly referred to as RJ45). It is also very likely that any of you devices which have a DB9 male connector mounted in the panel of the device can be accessed through the use of a null modem and console cable. This of course would mean the vast majority of the cables could be discarded and only the communication protocols/BAUD rates be retained but I am sure maintaining numerous cables in a box gives someone a purpose and feeling of importance.
All hail inefficiency!!

I highly doubt there is enough demand to make the a USB to Cisco Console cable adapter worth selling.

But there is no reason that it couldn't be done. With a little hardware hacking you could build your own.

It has been made and is now available at http://www.get-console.com/shop/en/18-usb-to-serial-cables - yes a VERY niche product no doubt, but you can convert it back to DB9 serial with a RJ45-to-DB9 dongle as well. It has native driver support for OSX and Win7/8

/Shameless plug

There is one here http://www.diablocable.com/diablo-cable-6ft-usb-to-rj45-rollover-console-cable-for-cisco.html as well and looking at its picture it features and in-cable electronics box which should do the trick right.

Yes it does. Diablo cable has 6 and 10 foot. Works natively with windows 8, no need for drivers unless you have earlier windows.

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