DA-681C Series HW UM
Hardware Installation
2-3
Wiring Requirements
The following common safety precautions should be observed before installing any electronic device:
•
Power wires and communication/signal wires should be routed through separate paths. If power and
communication/signal wires must cross paths, 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.
•
Use the type of signal transmitted through a wire to determine which wires should be bundled together
and which ones should be kept separate. The rule of thumb is that wiring that carries similar electrical
signals can be bundled together.
•
When necessary, we strongly advise labeling the wiring for all devices in the system.
ATTENTION
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.
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your device.
Electrical Current 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 rating, the wiring could overheat, causing serious damage to your
equipment.
Temperature Caution!
Be careful when handling the unit. When the unit is plugged in, the internal components generate heat, and
consequently the outer casing may feel hot to the touch.
Restricted Access Location
This equipment is intended to be used in Restricted Access Locations, such as a computer room, with access
limited to SERVICE PERSONAL or USERS who have been instructed on how to handle the metal chassis of
equipment that is so hot that special protection may be needed before touching it. The location should only
be accessible with a key or through a security identity system.
External metal parts of this equipment are extremely hot!! Before touching the
equipment, you must take special precautions to protect your hands and body from
serious injury.