http://www.kelinginc.net/c10.pdf

http://www.kelinginc.net/c10.pdf
C10 - BIDIRECTIONAL BREAKOUT
BOARD Rev. 8
WIRING GUIDE
PINS
INPUT
OUTPUT
TOTAL
JUMPER POSITION
OUTPUT
INPUT
5
13
12
4
17
17
Connect to a PC
parallel port. It can
take +3.3 or +5vdc
signals.
Use the jumper to
set the pins 2-9 to
act as input or for
output.
+5vdc are required
at the EN pin in
order to enable
outputs. If signal is
missing all outputs
will go to ground.
This so you can
install a switch or
safety charge
pump. If you do not
require this, this pin
can be hardwired
with +5vd from the
power source.
A +5vdc at 400
milliamp power
supply is
required. It can
also be powered
with a PC power
supply or USB
power cable.
The COM terminals
can be +5vdc or
ground. Depending on
the position of the
jumper. Select it
according to your
needs.
The output pins will deliver the
voltage that is provided to power
the board. Each pin can deliver 24
to 48 milliamps. Each buffer is
used to 50% or less than it’s
maximum capacity for increased
reliability.
All Inputs are provided with pull-down resistors, so if
left in the air, they will return a ground. So the inputs
are never in the air. This is to prevent noise from
getting into your system. The wires that carry the
signals from limit switches sometimes can act as
antennas that can bring noise into the signal. This
implementation prevents this from happening.
To generate an input, a +5vdc signal is required. This
signal can be taken from the terminal next to the input
pin.
This card must be powered while your system is
under power. Keep in mind noise can be
transmitted into output signals that could trigger
unwanted actions in your system.
3/31/2007 cnc4pc.com
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