Chapter 2
10
RAYLASE SP-ICE 2
MN043 / v1.0.2
2.4.1
Laser Control Interface 1
The interface provides analogous signals to control laser power and digital signals to control
laser devices such as a laser modulation driver. Further digital signals can be used for syn-
chronizing marking with external controllers – for instance a foot switch.
FPS = first pulse suppression, hc = high current, LM = laser modulation, MIP = mark in progress
Please note:
/START_MARK and /STOP_MARK are read simultaneously with the laser interface
(
page 13). After the input buffer, the signals will be merged with an OR function.
The LM signal can be inverted via a jumper (
page 14). The inversion of the signals FPS,
LM-GATE and MIP can be set via software.
Analog output
The analog output ANA_OUT1 is dedicated to control the diode or lamp current of a
Nd:YAG laser. The output voltage range can be adjusted via software.
Specifications
PIN Signal
PIN Signal
9 PIN D-SUB
1
TTL Output
LM or /LM
6
VDD Out
+5 V
2
TTL Output
/LM_GATE
7
TTL Output
/MIP
3
TTL Output
/FPS
8
TTL Input24V
/START_MARK
4
Analog
Output
ANA_OUT1
9
TTL Input24V
/STOP_MARK
5
GND
Analog &
Digital Return
TTL Input 24 V
TTL Outputs
Input low
max. 1.3 V
TTL low
0.26 V max.
6 mA max.
Input high
1.6 V to 24.0 V
TTL high
3.84 to 5.0 V
6 mA max.
Hysteresis
typ. 1.1 V
Input impedance
approx. 3 k
Ω
ESD protection
± 10kV
Analog output
Amplitude
0 V to +10 V ± 1%
Output current
5 mA max.
Bandwidth
1 kHz
DAC resolution
16 Bit
Noise ratio (
1 GHz)
60 dB min.
