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<< Click to Display Table of Contents > Parallel Port LP0 - LP7 |
  
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<< Click to Display Table of Contents > Parallel Port LP0 - LP7 |
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The 8 bit parallel port LP 0..LP 7 provides TTL output signals. All levels are defined in respect to GND.
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During USC-2 startup and when the laser signals are disabled by software, the LaserGate, LaserA and LaserB will go into tri-state. It must be assured that the Laser defaults to a safe operation in this case. Potentially, a pull-up or pull-down resistor (about 4k7 ohm) has to be added to put the laser into a safe state. |
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