Handler Interface; Introduction; Specification; Driving Capability - Chroma 19020 User Manual

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:
External Signal Output Specification: DC 3V~26V (HIGH), 10mA± 4mA, current limit is

5.2.2 Pin Assignment

The each pin assignment of HANDLER is listed in the table below:
Pin No. Signal
1 CHN1
2 CHN2
3 CHN3
4 CHN4
5 CHN5
6 CHN6
7 CHN7
8 CHN8
9 CHN9
10 CHN10
11 PASS_FAIL
12 nEOT
13 nEXT_START
14 nEXT_STOP
DC 5V, 40~60mA
10mA± 4mA for every circuit.
Input/Output
The output signals of CHN1~10 indicate the
Output test results of CH1~10.
Lo: PASS, Hi: FAIL.
The output signal of PASS_FAIL indicates the
test result of all channels when each Step
Output
ends.
Lo: TOTAL PASS, Hi: TOTAL FAIL.
The output signal of nEOT shows if the test
procedure is ended.
When the signal is HIGH, it means the test
Output procedure is under execution.
When the signal is LOW, it means the test
procedure has been ended or the tester is
standby.
It is the external START signal input that starts
Input
when LOW.
It is the external STOP signal input that stops
Input
when LOW.
HANDLER Interface
Description
5-1