ST2516 Series Operation Manual
64
8)
Handler Interface
ST2516 DC Resistance Meter equips with a Handler interface which is mainly used to output the
sorting result. When the instrument is applied to an automatic component sorting test system,
this interface will output the handshake signal and the sorting result output signal. The sorting
result output corresponds to the comparison result output of the current comparator bin.
Terminals and Their Descriptions:
Terminal
number
Terminal
name
Description
1
START
Measurement trigger signal, falling edge is valid. When the
instrument holds in the external trigger mode and this signal is
valid, the instrument will trigger a measurement.
2
PASS2
The low bin 2 comparison result output signal will be valid.
3
FAIL
The low bin comparison result output signal will be valid.
4
+5V
In5V power output.
5
EXT_VCC
When the “Handler” power supply is set as “External”, the
terminal is external power source and the voltage ranges
from +5V to +30V; when the “Handler” power supply is set
as “Internal”, the terminal is internal power source.
6
PASS1
The low bin 1 comparison result output signal will be valid.
7
PASS3
The low bin 3 comparison result output signal will be valid.
8
EOC
Measurement end signal. The low output signal will be valid.
9
EXT_GND
When the “Handler” power supply is set as “External”, the
terminal is external GND; when the “Handler” power supply is
set as “Internal”, the terminal is internal GND.
Sequence chart
NOTE: P1/P2/P3 is PASS1/PASS2/PASS3 signal.
