261 Programmable Hardware Manual (PHM)
© Tibbo Technology Inc.
7.2.1.3
C1 "Narrow" Tibbits
C1 devices are single-width "connectors". They occupy one "C" socket on the
standard tile and install alongside "M" Tibbits. C1s have the equal width and height
with M1T devices. Tibbit "connectors" have hooks that hold on to the host board's
edge thus adding mechanical stability.
Some C1s are really just connectors of the power jack, terminal block, etc. variety.
Others "sense" the outside world: temperature, humidity, vibration, and so on.
C1 Tibbits are always orange. C1s never have status LEDs.
I/O pins
C1 Tibbits have a single row of 4 pins:
All four pins are I/O lines that connect directly to four I/O lines of the adjacent "M"
socket.
There are no dedicated ground or power pins. Many C1s don't need ground and
power anyway -- they house connectors and nothing else.
If an attached external device needs ground and/or power then these must come
from the adjacent "M" Tibbit. Ground and power are also necessary for "sensor" C1s.
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