Test-Ok eC-test-mate, Справочник по аппаратуре

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Overview
The eC-test-mate is a family of portable devices for production testing of printed circuit boards (PCBs). The
devices (Test Probes) are controlled by a command language on a PC to which they are connected via
USB. Each Test Probe type provides a fixed number of functions. By combining multiple Test Probes, it is
possible to create a customized of test features.
Working voltages are in the range of 0..24V for most test functions (e.g. power supply, digital and analog I/
O) except where this is not useful (e.g. UART or I2C). All inputs and outputs are protected against higher
voltages however. Although care has been taken to protect the electronics as much as possible (see the
description for each functional group in the corresponding Test Probe Type chapter), applying too high
voltages may result in damage to the device.
Unlike the TEST-OK fixture, the Test Probes are connected directly to the Unit Under Test (UUT hereafter)
without an intermediate nail bed. In order to be testable with one or more Test Probes, it is necessary that
the required pattern of test points and associated holes (the footprint) be present on the UUT.
Each Test Probe type has a unique footprint so that it is impossible to connect a Test Probes to the wrong
test points.
An eC-test-mate Docking Station is available as well. The main advantage of plugging a Test Probe into the
Docking Station is that the power that can be delivered by the Test Probe's power supply is increased. The
USB standard limits the output current to 500mA which results in a maximum output power of 2.5W. About
2W of this is available to the power supply. When connected to the eC-test-mate Docking Station, the
maximum power that is available is 7W or 1A output current whichever limit is reached first.