Specifications

INSTALLATION Before you install the control unit, make sure that the installation area meets
REQUIREMENTS
the following requirements.
Environment
The environment for the control unit should be as follows:
a Temperature: 40 to 104 OF (4 to 40 “C).
l Humidity: not to exceed 80 percent.
l Airborne Contamination: no exposure to corrosive gases, dust, chemicals, or
similar substances.
l VentiZation: l-inch space above and to the sides.
Wiring
A branch circuit is part of your building wiring and it includes all the wires,
receptacles, and switches controlled by one circuit breaker. For best results,
your MERLIN Plus system control unit should be plugged into a dedicated ac
branch circuit, that is, one that is not used by other appliances. The MERLIN
Plus control unit must never share a branch circuit with appliances such as
heaters, refrigerators, coffee makers, or microwave ovens that can generate a
large transient voltage when they are switched on and off.
The control unit should be located within:
l A single cord length of the network interface, allowing for slack. You can
use up to 400 feet of DIW cable.
l 6 inches of the jack field that is centered beneath it.
l 5 feet of a grounded ac power source (not switch-controlled).
Also, a wiring run from the control unit to a voice terminal location cannot
exceed 1000 feet.
Caution: Since lightning can induce high voltage on parallel runs of
wire that are close together, do not route wiring from the control unit
to voice terminals along side CO line or ac building wires. If voice
terminal wiring must cross CO or ac wiring, cross them as near to 90
degrees as possible.
AC Outlet Check
Check, or have checked by a qualified electrician, the outlet into which your
MERLIN Plus system control unit will be plugged. Check that the hot,
neutral, and ground wires are properly connected to the outlet by using a
circuit tester.