Power Output; Ground - Measurement Computing USB-1208HS User Manual

USB-1208HS User's Guide Functional Details
Retrigger
The acquisition uses the trigger settings for positive edge/negative edge and level-sensitive/edge-sensitive, but
automatically re-arms the trigger after it is activated

Power output

You can use the two +5V connections to supply power to external devices or circuitry. These terminals can
output up to 285 mA. Refer to Figure 3 and Figure 4 on page 10 for the location of this pin.
Caution! The
+5V terminals are outputs. Do not connect to an external power supply or you may damage
the USB-1208HS and possibly the computer.

Ground

The analog ground ( ) connections provide a common ground for all analog I/O channels. The ground
AGND
( ) connections provide a common ground for the digital I/O, timer/counter I/O, timer, clock I/O, and the
GND
+5 V terminals.
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