7
2.
In the
screen, touch
Retrieve Wirelist
.
3.
In the
screen, highlight the wirelist you’ve just created, then touch
Retrieve
. This will
load the wirelist into the Touch 1.
4.
In the
screen, touch
Test
.
Test Description, Accuracy of Measurements
All terminators have the common connections Termpower and Ground connections verified. The Termpower capac-
itor is measured to check that it is the correct value. If discrete resistors exist as components to be tested in the wire-
list, they are verified.
After the terminator has passed the wirelist test, the script test begins. The terminator is powered up, and the output
voltages for each mode of operation are verified. The resistance provided by the termination IC’s is measured.
In each test, the measurements are done within the following tolerances:
Table 1: Tolerances for SCSI Terminator Tests
Test Accuracy
1000-Volt Touch 1
1500-Volt Touch 1
Resistance
Measurement
4%
1%
Voltage Measurement
3% with calib.
1%
Voltage Source on
Termpwr
4.8 V
4.8 V
Examples using 1000-volt Touch 1 system
Plug adapter into Digital I/O port
Plug DC power adapter into
SCSI testing adapter
