Target System Routed To Internal Programmer (Relays On) - Equinox Systems ISPnano I Series User Manual

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Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
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1.4 Target System routed to internal programmer (RELAYs ON)

When the relay coils are energised, the 'Target System (UUT)' connections are routed to the
'Internal Programmer'. The 'External ATE / ICT System' is at this point completely disconnected
(out of circuit). This allows the programmer to power up and program the 'Target Device' without any
problems related to the external system loading the power or programmer signal lines.
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 in this state, the 'External ATE System' is completely isolated from both
•
the 'Target System' and the 'Internal Programmer electronics'.
All 'Target System' I/O signals, power and GROUND are now routed to the internal
•
'Programmer Driver / Power Circuitry'.
102 ISPnano Series Programmer - User Manual – V1.11 – 12
External
ATE
or other
Test / Control
System
th
May 2011