Target System Routed To External Ate System (Default) - Equinox Systems ISPnano I Series User Manual

Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
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1.3 Target System routed to External ATE System (default)

When the programmer is powered up but not running a 'Programming Project', the relay coils are
not energised so the 'Target System (UUT)' connections are routed via the 'Target ISP Port',
through the relays to the 'Target ISP Port' where they then connect to the 'External ATE System'.
The signal direction depends on the particular signal I/O line, GROUND or power line being routed.
Target System
The path of a single signal or passive power / GROUND line is shown in the schematic below.
Please note:
When the relays are not energised, the programmer electronics are completely isolated from
•
both the 'Target System' and the 'External ATE System'.
This is the default state when the programmer is powered OFF or when it is powered ON and
•
the 'EXT-VCC' switch is OFF.
External
ATE
or other
Test / Control
System