20 Matrix ETERNITY NE System Manual
• The site of installation should be well-ventilated, moisture and dust free, and not exposed to direct sunlight,
heat or excessive cold.
• The site should not be near any source of electromagnetic noise such as any radio equipment, heavy
transformers, faulty electric chokes of tube-lights, any device having faulty coil, etc.
• The site should be equidistant from all the extensions to simplify cabling network and reduce cabling costs.
• The site should allow installation of the system at a clearance of at least 3.5 feet off the ground. Installation
at this height makes preventive or corrective maintenance tasks easy.
• If the system has GSM/UMTS/LTE module, the site should have sufficient network coverage available.
For more details, refer “Protecting ETERNITY NENX and Yourself”.
Cables
• Select standard, good quality telephone cables for the internal as well as over-head cabling.
• Use twisted pair wires to reduce interference.
• Use separate cable conduits for electrical and telephone cables.
• The length of the cables must not be too long. They must have minimum number of joints. This will help
you detect cable faults easily.
Selecting Extensions
Select appropriate IP Phones to be connected as SIP extensions. You may connect:
• any model of the proprietary IP Phones
• any Open SIP Phone
You may also select standard telephone instruments to be connected to the SLT ports. You may connect telephone
instruments like rotary phone, Pulse/tone switchable push-button phone, Feature phone or Cordless phone.
Provide Power Supply
• The DC Adapter (24VDC-2.5 Amp) provided with ETERNITY NENX works with input voltage ranging
between 100-240VAC.
• Arrange for a separate power point and switch, close to the system.
• Power supply for the system must be separate from other heavy electrical loads like Air-conditioners,
heaters, welding machines, electrical motors etc.
• The use of a UPS is recommended in case you experience frequent power failures.
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