ED12DSS User Manual
12
Initial Operation and Testing
The
ED12DSS
provides the circuitry necessary to drive DSS shutter units.
The on-board microprocessor accepts a pulse with determined exposure time and produces a bi-
stable open and close pulse whose duration is selected by the on-board piano switch, S1. Please see
Figure 1.
When the
ED12DSS
receives the correct initiating control signal, the shutter will open and close on
command.
Once the
ED12DSS
receives an input signal, the shutter should open at the rising edge of the input
pulse and close at the falling edge of the input pulse. Please see Figure 2.
If the requirement is to operate the shutter from a switch contact closure, follow this procedure:
1.
Connect a wire to pin #5 of the
ED-IOP
harness, this is the +5 VDC output.
2.
Switch the +5 VDC output voltage to the BNC input.
The shutter will open and remain open for as long as the switch contact is depressed. When the +5
VDC is removed from the input, the shutter will close. Please see Figure 2.
After connecting the input and output harnesses, the user selects the open and close pulse duration
using the on-board, 4-position piano switch and connects a user supplied power supply. After the
shutter and TTL input signals are connected, the shutter’s exposure can be controlled via a TTL
square pulse input.
Pulse duration is determined by exposure time.
The
ED12DSS
can be easily integrated into OEM applications where a +12 to +24 VDC power
supply is available.
Please read the entire manual carefully before attempting to operate the unit.
