Vincent Associates UNIBLITZ VMM-T1, User Manual

Page: 35 / 43

VMM-T1 User Manual 35
External Input Characteristics
Name Description
TRIGGER INPUT (BNC)
Rear Panel

Input impedance 50K ohms

Source current 100 µA

Active-low or active-high selectable with FUNCTION
slide-switch A

Minimum pulse width required to ensure triggering:
100 µS

TTL compatible:
-
Minimum high-level +2.0 VDC
-
Maximum low-level +0.8 VDC
-
Sink current 1.0 µA
RESET INPUT (BNC)
Rear Panel

Input impedance 50K ohms

Source current 100 µA

Active-low or active-high selectable with FUNCTION
slide-switch C

Minimum pulse width required to ensure reset: 100 µs

TTL compatible
-
Minimum high-level +2.0 VDC
-
Maximum low-level +0.8 VDC.
-
Sink current 1.0 µA
GATE INPUT (BNC)
Rear Panel

Input impedance 50K ohms

Source current 100 µA

Active-low or active-high selectable with FUNCTION
slide-switch D

Minimum pulse width determined by period of signal
applied to TRIGGER Input

Maximum pulse width determined by multiple of
TRIGGER signal period

TTL compatible
-
Minimum high-level +2.0 VDC
-
Maximum low-level +0.8 VDC
-
Sink current 1.0 µA