UC-7101 Hardware User’s Manual
Hardware Connection Description
Wiring Requirements
This section explains how to connect the UC-7101 to serial devices.
You should heed the following safety precautions before installing any electronic device:
y
Use separate paths for power wiring and wiring for devices. If power wiring and device
wiring paths must cross, make sure the wires are perpendicular at the intersection point.
NOTE
: Do not run signal or communication wiring and power wiring in the same wire
conduit. To avoid interference, wires with different signal characteristics should be routed
separately.
y
Use the type of signal transmitted through a wire to determine which wires should be kept
separate. The rule of thumb is that wiring that shares similar electrical characteristics can be
bundled together.
y
Keep input wiring and output wiring separate.
y
It is advisable to label the wiring to all devices in the system.
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your UC-7101 embedded
computer.
Wiring Caution!
Calculate the maximum possible current in each power wire and common wire. Observe all
electrical codes dictating the maximum current allowable for each wire size.
If the current goes above the maximum ratings, the wiring could overheat, causing serious
damage to your equipment.
Temperature Caution!
Be careful when handling the UC-7101 embedded computer. When plugged in, the computer’s
internal components generate heat, and consequently the outer casing may feel hot to the touch.
Connecting the Power
Connect the “live-wire” end of the 12-48 VDC power adaptor to the UC-7101 terminal block. If
the power is supplied properly, the “Ready” LED will glow a solid green color after a 25 to 30
second delay.
The power for this product is intended to be supplied by a Listed Power Unit that is rated to
deliver 12 to 48 VDC at a minimum of 300 mA for the UC-7101.
Grounding the UC-7101 Embedded Computer
Grounding and wire routing help limit the effects of noise due to electromagnetic interference
(EMI). Run the ground wire from the ground screw to the grounding surface prior to connecting
devices.
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