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Photon User Guide 412-0035-00-10 Version 100
Input Power
Included with the Photon camera is an AC/DC converter that generates 8VDC input power from
110 VAC or 220 VAC. If you prefer to provide your own power supply, please verify that the
input power at the camera connector meets the specifications shown in Table 3 when applied
across PWR_IN and GND pins.
CAUTION: Reversing polarity of input power will damage the camera's internal power supply
and repair is not covered under the camera warranty.
Parameter
Minimum voltage
Maximum voltage
Nominal Load
Power
Peak Load Power
at start-up
Analog Video Output
The video output of the Photon camera can be configured to either NTSC or PAL-compatible.
In either case, the output is intended to drive a 75-ohm load. Use of coaxial cable with 75 ohm
characteristic impedance is strongly suggested. The analog video signal is across the
VIDEO_LO and VIDEO_HI pins. See Table 4 for a list of other relevant video parameters.
Parameter
Monochrome equivalent
Frame rate
Active video lines
# displayed detector samples
Note: To use the Photon Isotherm option, the video monitor must be color capable. For display
of Photon video without Isotherm capability, a monitor complying with the monochrome-
equivalent standard shown in Table 4 can be used.
*
NTSC is the U.S. standard for color analog video. PAL is the European standard.
Table 3: Input Power Requirements
Baseline
Comment
Value
5.0 V
Absolute minimum is 4.8V
24.0V
Absolute maximum is 26 V
< 2000 mW
Typical power is 1500 mW
4000 mW
Assuming no load between
HTR and HTR_RTN.
Table 4: Video parameters
NTSC
RS-170A
29.97 Hz
480
320 (H) x 240 (V)
8
PAL
CCIR
25 Hz
510
320 (H) x 255 (V)
*
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