Instruction manual

Installation and Setup
13
Instruction Manual – Precis DSP Matrix Switchers
Installation and Setup
Site Recommendations
When placing the enclosure, follow the recommendations and precautions in this section to reduce potential installation
and operation hazards. For complete specifications, see the tables on page 11.
Choose a clean, dust free, (preferably) air-conditioned location.
Avoid areas with direct sunlight, heat sources, or high levels of EMI (Electromagnetic Interference).
Chassis Accessibility
Make sure the front and rear panels of the enclosure are accessible, so that you can monitor the LED indicator. Leaving
adequate clearance at the rear will also allow for easier cabling and service.
Power
The source’s electrical outlet should be installed near the router, easily accessible, and properly grounded. Power should
come from a building branch circuit. We recommend using a dedicated line for the system’s power. Use a minimum
breaker current rating of 15 A for 110 V or 30 A for 230 V.
To avoid an overload, note the power consumption rating of all the equipment connected to the circuit breaker before
applying power.
General Hazard Precautions
These recommendations address potential hazards that are common to all installations:
Elevated Operating Temperature
The maximum rated ambient temperature for Precis DSP enclosures is 95° F (35° C).
All equipment should be installed in an environment compatible with the manufacturer’s maximum rated ambient
temperature. In a closed or multi-unit rack assembly, the operating ambient temperature of the rack environment may be
greater than the ambient room temperature.
Airflow Restriction
Precis DSP enclosures are designed to adequately dissipate the heat they produce under normal operating conditions;
however, this design is defeated when high-heat producing equipment is placed directly above or below an enclosure.
Mechanical (Rack) Loading
When installing equipment in a rack, distribute the weight to avoid uneven mechanical loading.
Circuit Overloading
When connecting the equipment to the supply circuits, be aware of the effect that overloading the circuits might have on
over-current protection and supply wiring.
Reliable Earthing (Grounding)
Reliable earthing of rack-mounted equipment should be maintained. If not using a direct connection to the branch circuit
(e.g., plugging into a power strip), pay particular attention to supply connections.
Caution: To protect the equipment from overheating, do not operate in an area that exceeds 95° F (35° C)
and follow the clearance recommendation below for adequate airflow.
Caution: To prevent overheating, the system requires one empty rack unit above and below the enclosure.
Avoid placing high-heat producing equipment directly above or below the enclosure. If such equipment must
be installed above or below the Precis, more space (or a rack fan) may be necessary. Verify that the
openings on the sides of the enclosure are not blocked and do not have restricted air flow.
Caution: We recommend attaching all power cords to a surge protector and/or an AC line conditioner.