Synrad Firestar Series - Page 59

technical reference
48
SYNRAD OEM v30 Operator’s Manual Version 2
Interface connections
Table below provides DB-9 output circuit specications while following gure illustrates the output
circuit’s equivalent internal schematic.
Table 4-5 DB-9 output circuit specications
Output Signals Output Device Type and Specications
Laser Ready 5V logic output buer
Lase Indicator On state Vmin +4.5 VDC @ 50 mA
Overtemp Fault On state (typical) +5.0 VDC @ 0.5 mA
DC Voltage Fault O state Vmax +0.8 VDC
Figure 4-9 DB-9 output equivalent schematic
FIRESTAR v30
OUTPUT CIRCUITRY
DB-9 (INTERFACE A) CONNECTOR – OUTPUT PINS
(2) LASER READY
(3) LASE INDICATOR
(4) OVERTEMP FAULT
(7) DC VOLTAGE FAUL
T
(5) DC OUT
(8) GND
5 VDC, 250 mA
100 Ohm
EMI Filter
100 Ohm
EMI Filter
100 Ohm
EMI Filter
100 Ohm
EMI Filter