VMM-T1 User Manual
21
b.
Switch
E
is used to select the proper pulse energy for the shutter being driven. Switch to the
HIGH (up) position for 35mm and larger aperture types, switch to the LOW (down) position
for all other shutter types.
11.
SYNC. OUTPUT
BNC.
a.
Active-low output
b.
Output for shutters equipped with the SOLID STATE SYNCHRONIZATION SYSTEM
option.
c.
The shutter’s internal synchronization circuit sets the BNC to an active level when the
synchronization circuit becomes energized.
d.
The output goes active when the shutter reaches 80% of full open, and goes to the non-active
state when the shutter reaches 20% closed.
e.
The front panel SYNC. ACTIVE LED illuminates when the synchronization sensor is active.
12.
PULSE INPUT
BNC:
Allows control of the shutter exposure and frequency from a TTL signal source.
a.
The pulse duration determines the shutter exposure interval.
b.
The frequency of the signal presented to this input determines the frequency of shutter
exposures.
c.
This input can be set active-high or active-low by FUNCTION switch B. See “
FUNCTION
SELECT
” under
GENERAL CHARACTERISTICS
.
