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General Information
Specifications
Operation
Shutter Type
SR470 Series Laser Shutters.
Shutter Output
Drives one shutter.
Shutter State
Open or closed, controlled either manually from
front-panel inputs or from external TTL input.
Shutter Polarity
User selectable for “normally open” or “nor-
mally closed” operation.
Control Modes
Internally or externally triggered with timing
generation, direct external level control, or
manual.
Manual Control
Front-panel [OPEN] and [CLOSED] buttons
command shutter to the corresponding state.
[RESET] button commands shutter to its
Nor-
mal
state.
Timing Sequence
Pre-delay, exposure time, post-delay. Each time
interval may be set independently with 0.1 ms
resolution, up to 9,999.9999 seconds.
Bursts
Timing sequence may be repeated after a trigger,
from 1 to 99,999,999 times, or continuously.
Sync Output
The rear-panel S
ync
O
ut
TTL signal mirrors
whether the shutter is presently commanded to
the open or closed state.
Alignment Mode
Front-panel [Align] button (active when in man-
ual mode) opens and closes shutter at 1 Hz chop-
ping rate to assist with mechanical alignment.
Gate
/
Inhibit
The rear panel A
ux
I
/
O 1 port can be configured
to allow or disallow TTL control depending on
the value of the input TTL level.
Fault Detection
and Reporting
Automatic detection of shutter disconnect or
fault, with front-panel indicator LED, Rear panel
TTL
Alarm
output plus audible alarm, which
can be muted from the front panel.
Display Blanking
Front panel LEDs can be disabled.
Remote Operation
All instrument functions are controllable over
GPIB, RS-232, and Ethernet interfaces.
SR470 Shutter Controller
