Chroma 19020 - HANDLER Interface; Pin Assignment and Diagrams

HANDLER Interface
5-1
5. HANDLER Interface
5.1 Introduction
The HANDLER interface socket can be purchased for the Tester rear panel. When it is
desired to control the Tester output via external signal or to send the signal outside, the
HANDLER card can be inserted for external control.
5.2 Specification
5.2.1 Driving Capability
Internal Signal Output Specification: DC 5V, 40~60mA
External Signal Output Specification: DC 3V~26V (HIGH), 10mA± 4mA, current limit is
10mA± 4mA for every circuit.
5.2.2 Pin Assignment
The each pin assignment of HANDLER is listed in the table below:
Pin No.
Signal
Input/Output
Description
1
CHN1
Output
The output signals of CHN1~10 indicate the
test results of CH1~10.
Lo: PASS, Hi: FAIL.
2
CHN2
3
CHN3
4
CHN4
5
CHN5
6
CHN6
7
CHN7
8
CHN8
9
CHN9
10
CHN10
11 PASS_FAIL Output
The output signal of PASS_FAIL indicates the
test result of all channels when each Step
ends.
Lo: TOTAL PASS, Hi: TOTAL FAIL.
12 nEOT Output
The output signal of nEOT shows if the test
procedure is ended.
When the signal is HIGH, it means the test
procedure is under execution.
When the signal is LOW, it means the test
procedure has been ended or the tester is
standby.
13 nEXT_START Input
It is the external START signal input that starts
when LOW.
14 nEXT_STOP Input
It is the external STOP signal input that stops
when LOW.