Connection of 2 computers on laser pointers. Scheme, description

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Connection of 2 computers on laser pointers. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Computers

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Connection of 2 computers on laser pointers

Phototransistor - any of the domestic ones, for example, type FT-2, resistor R1 - within 5-10 kOhm. Diodes - D522. Capacitor 10uF x 10V. In a good way, it would be necessary to implement a normal limiting circuit for a laser diode. Since the circuit does not convert RS232 to SIR, the range is about a hundred meters (well, or a little more).

If you use SIR / FIR for modulation in the current SuperIO chips and a normal PIN diode with an amplifier, there will be both 230 Kbaud and 460 Kbaud. However, there it is necessary to take into account the restriction on the presence of power supply of only +5 volts.

Author: Alexander Konosevich; Publication: cxem.net

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