Test-Ok eC-test-mate, Hardware Reference Manual

Page: 27 / 35

Copyright © TEST-OK. All Rights Reserved.
27 / 35
eC-test-mate Type III (TCC 213)
Another general purpose tester with multiple functions on some pins for optimal flexibility. Eight pins can be
used as analog input or digital input. Furthermore, four analog outputs are provided and one group of seven
digital outputs with programmable logic '1' level.
As every eC-test-mate, a programmable power supply is available as well.
Functional description
This section describes all the functional blocks of the eC-test-mate Type III.
Besides the electrical specification of the interface pins on the connectors of the eC-test-mate Type III there
are also references to the TEST-OK Description Language (TDL) commands that can be used to control the
functional blocks.
A block diagram of the eC-test-mate Type III is shown in the figure below:
As can be seen from the diagram, the numbering of inputs, outputs and other functions start at 301. The
reason is that multiple eC-test-mate types can be combined into one bigger tester. The first digit indicates
the eC-test-mate type (3) while the last two digits increment up from 1
Analog Inputs (301..308)
There are eight identical high impedance analog inputs (numbered 301..308) on the board which are fed into
12-bit Analog-to-Digital Converters (ADC for short).
The valid input voltage range is 0..24V, with a resolution of 1 mV.