technical reference
315Synrad Firestar ti-Series operator’s manual
User I/O connections
Pin 10 Shutter Open Request
Apply a positive or negative voltage (±5–24 VDC) with respect to Pin 11, Input Common, to
enable lasing. If your system does not supply a Shutter Open Request signal, this pin must be
connected to a voltage source in the range of ±5–24 VDC. Refer to Figure 3-8 for a diagram
showing how the Shutter Open Request input is factory-jumpered. When a voltage is initially
applied to this input, there is a five-second delay during which lasing is inhibited. Because all DC
power is removed from the laser’s RF board when this input is inactive, no lasing can occur until
voltage is applied to Pin 10. See Table 3-4 for input circuit specifications.
To enable Keyswitch-equipped lasers, you must apply a voltage (in the range of ±5–24 VDC) to
the Shutter Open Request input and move the manual Shutter Switch to the Open position. Las-
ing is inhibited when voltage is removed from Pin 10 or the Shutter Switch is Closed.
Note: To ensure optimum laser performance, there is a five-second delay imposed from the time
a Shutter Open Request occurs to the time that PWM Command signals are accepted.
Pin 11 Input Common
Use this pin to connect return lines for Remote Interlock, Shutter Open Request, and Remote
Reset/Start Request lines. Refer to Table 3-4 for input circuit specifications.
Figure 3-8 illustrates how Remote Interlock and Shutter Open Request inputs are factory-jumpered on
the Quick Start Plug to enable lasing for initial testing and troubleshooting purposes.
Figure 3-8 Quick Start Plug wiring diagram
Figure 3-9 on the following page illustrates the input circuit’s equivalent internal schematic while Table
3-4 provides Firestar ti-Series input circuit specifications.
Pin 1 PWM Return
Pin 9 PWM Input
Pin 3 Remote Interlock
Pin 4 +5 VDC Auxiliary Power
Pin 10 Shutter Open Request
Pin 11 Input Common
Pin 12 Aux. DC Power Ground
Pin 15 Pin 9
Pin 8 Pin 1
PWM Input BNC
Rear (Solder Side)
of Male DB15
"Quick Start"
Shorting Plug
To Next Page
Loading...
Need help?
General
