gm2k8

Serial Cable info

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ok.. i've had a cutter for years with the supplied serial cable.. however a friend purchased the same cutter w/o any cables.. so i told him to order a serial null cable.. he ordered one i think it was10ft.. still didnt work.. so i tested it on my cutter.. the cable didnt work.. so as a test i brought my cable over to his house and we hooked it up.. worked fine.. he sent that first cable back and ordered another.. this one was 6ft.. didnt work.. i tested it with mine.. didnt work.. i then suspected maybe the pinouts were different.. so using a ohm tester i started to test mine.. then i tested his brand new one.. pinouts are different.. any ideas? both cables he ordered were DB9 RS232 Serial Null Modem Cables..

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bet someone is sending him a non - null modem cable if the pin outs are different - they are sending him a regular serial cable maybe 

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ok so mystery solved.. the cable i have isnt a null modem cable its a straight thru cable.. every pin matches.. so he got one and boom it worked.. smh

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so is it the lp or lp2 that uses the regular cable for future reference?

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I used a regular serial cable on the Seiki for years

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Null, is the keyword. It doesn't have one of the connections in it. That's what makes it 'null', or something to that effect.

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Null, is the keyword. It doesn't have one of the connections in it. That's what makes it 'null', or something to that effect.

I thought it was a pinout difference in the null modem - which a lot of cutters use and was trying to narrow down is it the creation laserpoint 1 or the liyu laserpoint2 that they was working with

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I thought it was a pinout difference in the null modem - which a lot of cutters use and was trying to narrow down is it the creation laserpoint 1 or the liyu laserpoint2 that they was working with

 

That's what you use, when you're trying to cut directly from Corel. The way I understood it, (when I was trying), it is missing a wire, that's what makes it 'null'. Don't know, gave up on that project pretty quick.

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A null modem cable has the TX and RX lines crossed. ie TX in on pin 3 on one end, and pin 2 on the other and RX is on pin 2 on the first end and pin 3 on the other. These type of cables were used back in the day to allow two computers to talk directly to each other without the need of a modem.

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