User Manual

EXTERNAL CONTROL
109
EXT ADD - AC+DC-ADD and AC-ADD mode
Overview &
Concept
Select AC+DC-ADD or AC-ADD mode to add
the external signal source signal that includes
magnification to the internal signal then power
output on the rear panel. The impedance of
input is 1MΩ, whilst the frequency range of
input is from DC to 999.9 Hz.
EXT Sync - AC+DC-Sync and AC-Sync mode
Overview
When AC+DC-Sync or AC-Sync mode is
selected, the externally synchronized oscillation
function embedded in the ASR-2000
synchronizes the output frequency, specifically,
to the frequency of external synchronization
TTL signal. It is not allowed to set the
synchronization phase difference and the
output frequency is able to be synchronized to
frequency from 40 to 999.9 Hz.
Diagram &
Concept
For SIG option, choose either EXT (signal sync)
or LINE (line sync) for external sync signal
source. It is noted that synchronous is with
power source frequency when LINE is opted.
See page 74 for operation steps.
0
1
Output
Waveform
External Sync
Signal (TTL)