FiberPlex WDM8 - Manual (Page 4)

Ambient Temperature
Units and systems by FiberPlex are generally designed for an ambient temperature range (i.e. temperature of the incoming air) of 5 °C to 40
°C (41 °F to 104 °F). When rack mounting the units, the following facts must be considered:
 The permissible ambient temperature range for operation of the semiconductor components is 0 °C to +70 °C (32 °F to 158 °F)
(commercial temperature range for operation).
 The airflow through the installation must allow exhaust air to remain cooler than 70 °C (158 °F) at all times.
 Average temperature increase of the cooling air shall be about 20 °C (68 °F), allowing for an additional maximum 10 °C increase at
the hottest components.
 In order to dissipate 1 kW with this permissible average temperature increase, an air flow of 2.65 m³/min is required.
Example: A rack dissipating P = 800 W requires an air flow of 0.8 * 2.65 m³/min which corresponds to 2.12 m³/min.
 If the cooling function of the installation must be monitored (e.g. for fan failure or illumination with spot lamps), the exhaust air
temperature must be measured directly above the modules at several places within the enclosure.
Grounding and Power Supply
Grounding of units with mains supply (Class I equipment) is performed via the protective earth (PE) conductor integrated in three‐pin
Phoenix™ connector. Units with battery operation (< 60 V, Class III equipment) must be earthed separately. Grounding the unit is one of the
measures for protection against electrical shock hazard (dangerous body currents). Hazardous voltage may not only be caused by defective
power supply insulation, but may also be introduced by the connected audio or control cables.
This equipment may require the use of a different line cord, attachment plug, or both, depending on the available power source at
installation. If the attachment plug needs to be changed, refer servicing to qualified personnel.
Class I Equipment (Mains Operation)
Should the equipment be delivered without a matching mains cable, the latter must be prepared by a trained person using the attached
female plug (Neutrik™ powerCON TRUE1) with respect to the applicable regulations in your country.
Before connecting the equipment to the AC power outlet, check that the local line voltage matches the equipment rating (voltage,
frequency) within the admissible tolerance. The equipment fuses must be rated in accordance with the specifications on the equipment.
Equipment supplied with a 3‐pole appliance inlet (protection conforming to class I equipment) must be connected to a 3‐pole AC power
outlet so that the equipment cabinet is connected to the protective earth.
WARNING:
If the ground is defeated, certain fault conditions in the unit or in the system to which it is connected can
result in full line voltage between chassis and earth ground. Severe injury or death can then result if the
chassis and earth ground are touched simultaneously.