User Documentation

- 9 -
Wiring Requirements
WARNING
Do not disconnect modules or wires unless the power supply
has been switched off or the area is known to be
non-hazardous. The devices may only be connected to the
supply voltage shown on the type plate.
The devices are designed for operation with a Safety
Extra-Low Voltage. Thus, they may only be connected to the
supply voltage connections and to the signal contact with the
Safety Extra-Low Voltages (SELV) in compliance with
IEC950/ EN60950/ VDE0805.
WARNING
This unit is a built-in type. When the unit is installed in another
piece of equipment, the equipment enclosing the unit must
comply with fire enclosure regulation IEC 60950/EN60950 (or
similar regulation).
WARNING
Safety First!
Be sure to disconnect the power cord before installing and/or
wiring
the Ethernet Switch.
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.
You should also pay attention to the following items:
 Use separate paths to route wiring for power and 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 communications wiring and power wiring
in the same wire conduit. To avoid interference, wires with different
signal characteristics should be routed separately.
 You can use the type of signal transmitted through a wire to determine
which wires should be kept separate. The rule of thumb is that wiring
with similar electrical characteristics can be bundled together.
 Keep input wiring and output wiring separated.
 It is strongly advised that you label wiring for all devices in the system
when necessary.
 Only use copper conductors with 60/75°C capability