TTL (PWM) Laser head and Mesa 7i76

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03 Dec 2021 10:43 #228272 by RoberCNC
Hi PCW, the wiring from the 5i25 P3 to DB25 conector of the BB is going to be 1 to 1? I mean pin1 from the P3 to pin1 of the DB25, pin2 to pin2, etc...

Thx very much.

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03 Dec 2021 15:11 #228289 by PCW
Yes, you normally use a parallel printer cable for this

(if you use the HDR P2 you need a flat cable adapter from HDR26 to DB25)

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03 Dec 2021 15:25 #228292 by RoberCNC
Sorry, the P2 wanted to say, I got confused, P3 (the DB25) I have it busy with the 7i76.
I have asked if the pins are the same to prepare the wire.

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03 Dec 2021 15:43 #228294 by PCW
On P2, HDR Pin 1 connects to DB25 Pin 1, but the other pins are
not in order because of the way DB25 and HDR26 pins are numbered.
You don't need a special cable however just a flat cable with IDC
connectors (one HDR26 , one DB25) on each end.
(Mesa can supply these)
The following user(s) said Thank You: RoberCNC

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03 Dec 2021 15:53 #228297 by RoberCNC
Ok, I'll wait to do it then with the pins you tell me based on the custom firmware.

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