Pangolin PASS, User Manual, Page: 7 / 26

2022/07/28 09:15 7/26 PASS
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should be connected to the CYAN input on a PCAOM driver or directly to a laser diode driver.
Note that for the color signals above, ideally, any Laser Diode Driver should have differential input, and
you should connect both the + and – color signals from the PASS board directly to those drivers.
Pins 21 and 22 correspond to the Z+ and Z – signals respectively. In most cases, laser projectors
do not use these signals directly and in fact, when used with certain pieces of Pangolin software,
these signals correspond to a Safety Coordinate System. It is recommended that these be left
unconnected.
Pin 23 is connected to the ILDA input connector pin 12. This signal is reserved by ILDA for a light
sensor output, but it is essentially unused by all manufacturers. It is recommended that this pin be
left unconnected.
Pin 24 is connected to the ground connection of PASS. It is recommended that this only be used as
a ground reference for the shutter driver, and nothing else.
Pin 25 is the main Shutter output. Under normal circumstances the state of this signal will
correspond directly to pin 13 on an ILDA input connector. However, in the event of a major fault,
PASS will forcibly close the shutter using this signal. It is therefore MANDATORY that this be
connected to a shutter driver. For maximum safety, the shutter should be a fast type of shutter,
and one that also will fail-safe. This means that in the event of a mechanical or electrical failure of
the shutter, it will remain closed due to the mechanical design of the shutter. Pangolin highly
recommends shutters manufactured by the company called nm Laser Products
(
http://www.nmlaser.com ).
J803: Scanner Position and Light Detector Inputs
Pin 1 pr5V output, which should only be connected to the PASS light sensor.
Pin 2 is the PASS light sensor input, which ranges from 0V to +5V.
Pin 3 and Pin 5 correspond to the Signal Ground connection of PASS. Pin 3 should be connected
to the PASS light sensor. Pin 5 may or may not be connected to the scanner amplifier, depending
on circumstances described below.
Pin 4 corresponds to the X Position Signal. This should be connected to the X-axis scanner
amplifier.
Pin 6 corresponds to the Y Position Signal. This should be connected to the Y-axis scanner
amplifier.
J804: Control Panel Signals