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110 posts

Master Geek


Topic # 113591 21-Jan-2013 19:24 Send private message

hi there,does anyone know where in nz i can buy one of these usb to null modem cable just like here http://goo.gl/E2bGd  any information would be great.

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  Reply # 748438 21-Jan-2013 20:27 Send private message

Jaycar. Quite a common thing. About $25. Needs the Prolific drivers to make it work.

Edit: Normally just called usb-to-serial or usb-to-db9



110 posts

Master Geek


  Reply # 748451 21-Jan-2013 20:38 Send private message

Hey thanks for that,I did check their on line catalog but didn't see it there,didn't know about what else they are known as tho,i now see dick smith has one as well,cheers

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  Reply # 749818 23-Jan-2013 20:31 Send private message

The pinout may be different on that "nul modem" USB adapter.

I know I have had to hunt down some pinouts for getting console on a crappy linksys switch I have here since it didnt work on a normal straight thru cable.




Richard rich.ms



110 posts

Master Geek


  Reply # 750649 25-Jan-2013 12:08 Send private message

Hi so you were able to find some then?where did you go,as I may need to.

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  Reply # 750668 25-Jan-2013 13:02 Send private message

You want USB -> Serial

Null Modem refers to a specific serial cable with specific pinouts (RX -> TX etc)

Jaycar sells both the USB->Serial and the Null Modem/Straight Through Serial Cables. If you need it for a switch console then the switch will usually come with one. Console cables for network devices tend to be either straight through or rollover (Cisco). Just find the manual for the device.



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Master Geek


  Reply # 750677 25-Jan-2013 13:12 Send private message

OK great thanks for the information, if I have anymore problems I'll let you know:-)

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