373 Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
Unlike Tibbit #04, this device requires no external power to control its inputs:
Shorting an input to the system ground will activate this input and set the
corresponding control line LOW.
Note that these are not "isolated inputs", even though they feature opto-couplers in
their circuitry. Still, the optical stage isolates your system from the noise, ESDs,
spikes, and other external disturbances.
Combine this Tibbit with terminal block devices – #20 (nine terminal blocks) or #21
(four terminal blocks). Note that this Tibbit does not provide a ground line so you
will need to "steal" the ground elsewhere. The ground is immediately available on
terminal 5 of Tibbit #20.
LEDs
There are four green LEDs, which are connected to four control lines. An LED lights
up for the LOW state of a control line, i.e. when the corresponding input is shorted
to the system ground.
7.2.9.61
#56, C1: Type A USB Port [DEPRECATED]
THIS TIBBIT HAS BEEN DEPRECATED
Function:Type A USB port
Form factor: C1
Special needs: [USB]
Power requirements: 5V/10mA (keep in mind that an attached USB device may
additionally consume up to 500mA)
See also: #50
This Tibbit was designed for use with the LTPP3 board, which has now been
superseded by the LTPP3(G2) board.
Since USB ports are present on the LTPP3(G2) board itself, this Tibbit is not
required on, nor compatible with the LTPP3(G2).
Details
This Tibbit is only supported on Linux-based boards, such as the LTPP3 board.
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