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12. Blackcat

 

A Blackcat cable is the interface you'll need if you plan on modifying a Motorola SB5100 below are the schematics for making a Blackcat.

 

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LLAADD

 

12a. SN74LS244N Version

 

12b. Chipless version

And here's an alternative that doesn't require a chip or resistors. There has been some talk of frying your modem using this method but I've tried this myself on a SB4100 and a SB5100 and it worked fine on both modems.

 

 

 

                                               
Granty