User Manual

MCR METER Manual
14
realize the automatic sorting test.
Table 5-1 Pin definition table for Handler interface
Pin
number
Signal
name
Described
1
2
3
10
11
/P1
/P2
/P3
/NG
/AUX
Sorting result output.
All signal with pull up resistor collector output. Up pull supply can
choose the internal +5V power supply, or external power supply
EXTV (factory default).
The internal pull resistor is 4.7kΩ.
12,13 /EXT.TRIG The rising edge of this signal triggers the instrument to measure.
The pulse width is more than 1μs, the low level of a driving current
is about 5-10mA.
16,17,18 +5V
Internal +5V power output:
Users generally do not recommend the use of internal power supply
equipment, if you have to use, please ensure that the use of the
current is less than 0.3A, and the signal line away from the source of
interference.
27,28 EXTV
An external DC power supply for sorting interface signals is
accessed from here. If you want to use the internal +5V power
supply, need to change the jumper settings.
30 /IDX
/IDX valid after A/D conversion.
When the signal is valid, the automatic test machine is allowed to
move the next element to the position where it is to be measured.
However, the current measurement results have to wait until /EOM
is valid, then it is output.
31 /EOM
End Of Measurement：
When the measured data and the comparison results are valid, the
signal is valid.
34,35,36 COM
Reference to external power EXTV.
When the Handler interface output signal using the internal power
supply, the instrument's internal GND will be connected with the
COM.