USB Serial Adapters

Post by **brentp** » Mon Dec 11, 2006 10:18 pm

agree, that is an option. the desire to support 'older' laptops without usb has diminished quite a bit, in my opinion.

having said that, the v.next MJLJ will likely support usb.

4600cc · Post by **4600cc** » Tue Dec 12, 2006 12:14 am

Maximum length for a USB cable is 15 feet, which is a little short and will limit you to basically having your laptop on passenger seat. This is a problem..

jimmyybob · Post by **jimmyybob** » Tue Dec 12, 2006 8:33 pm

I have an old PC(3 years)(not laptop) in the garage i presume the serial port on that is ok to use.??
I understand i need a serial lead with a male one end.? what about the other end.? i cant just look because the PC is in the loft space and i havent had a chance to get it out.

MartinM · Post by **MartinM** » Tue Dec 12, 2006 9:04 pm

The PC will have a 9 pin connector with male pins...

so the PC end of the cable will therefore be female...

...with straight-thru connections (1-1, 2-2 etc)...

to the MJLJ end of the cable which will have male pins...

to plug into the female connector on the MJLJ

4600cc · Post by **4600cc** » Tue Dec 12, 2006 11:47 pm

You need an Male to Female connector, around 50 feet long, if you want to do with with a PC. 50, or 100 feet cable will do, cost should be around $20. Try searching for "M F DB9"

This is the case where 15 foot USB cable is useless. That and if you using a USB you have to write and maintain a separate driver. Using USB is not as simple as using serial, and you can be sure there will be hick ups with users, just like currently there are hick ups with users using USB to Serial adapters.

By the way, Im writing a software called MBCT Wizard, which will trouble shoot basic communications issues with Megajolt.