Content
Important Information ..................................................................................................................................... 2
Contact ...................................................................................................................................................... 2
Integrator obligations ................................................................................................................................. 2
Disclaimer .................................................................................................................................................. 2
Warranty .................................................................................................................................................... 2
Revision history / Errors ............................................................................................................................ 3
End Clause ................................................................................................................................................ 3
Meaning of symbols ........................................................................................................................................ 4
Intended use ..................................................................................................................................................... 5
Eye Safety ......................................................................................................................................................... 6
1 General Information ................................................................................................................................. 9
1.1 LRF: Laser Range Finder Module ................................................................................................ 9
1.2 Main parts of a LRF Module ......................................................................................................... 9
2 LRF Background Information ................................................................................................................ 11
2.1 Rangefinder Principle “Pulsed LRF” ........................................................................................... 11
3 Getting Started ........................................................................................................................................ 12
3.1 Unpacking ................................................................................................................................... 12
3.2 First steps with the LRF 6742 ..................................................................................................... 13
3.3 First steps without LRF Interface Kit ........................................................................................... 13
4 Mechanical Interface .............................................................................................................................. 14
4.1 Positioning pin holes ................................................................................................................... 14
4.2 Threaded holes ........................................................................................................................... 14
4.3 Bench reference design .............................................................................................................. 14
4.4 Alignment .................................................................................................................................... 15
4.4.1 Alignment at 1550 nm (laser measuring wavelength) ............................................................ 15
4.4.2 Alignment at 830 nm (pointer wavelength) ............................................................................. 15
4.4.3 Alignment without camera: Back-up solution .......................................................................... 16
4.4.1 Quick alignment with laser-viewing card ................................................................................. 16
4.5 Nitrogen flushing ......................................................................................................................... 16
5 Optical interface ..................................................................................................................................... 17
5.1 Coatings ...................................................................................................................................... 17
5.2 Isolation of optical channels ........................................................................................................ 17
5.3 Environment ................................................................................................................................ 17
6 Hardware interface ................................................................................................................................. 17
6.1 Connector description ................................................................................................................. 17
6.2 ESD protection ............................................................................................................................ 21
6.3 Operating conditions ................................................................................................................... 21
6.4 Ground Concept.......................................................................................................................... 21
6.5 Absolute maximum ratings ......................................................................................................... 22
6.6 Electrical characteristics ............................................................................................................. 22
6.6.1 Current consumption detail: “Powering up” ............................................................................ 23
6.6.2 Current consumption detail: “measurement sequence” .......................................................... 23
6.7 PWR_SAFE signal pin#9 ............................................................................................................ 24
7 Serial interfaces ...................................................................................................................................... 25
7.1 RS232 ......................................................................................................................................... 25
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