ETSI EN 300 386 Testing of Telecommunications Network Equipment

EN 300 386 ETSI Equipment for Telecommunications Networks is EMC tested.

Guidelines for non-radio equipment intended to be used in a public telecommunications network are covered by ETSI EN 300 386. It can be difficult to satisfy the IEC, EN, and other EMC testing criteria.  Compatible Electronics in giving you the assurance that we will take care of all your inadvertent radiator testing needs.

Evaluation of Unintentional Radiator Devices, ETSI EN 300 386, In Summary,

The specifications for non-radio equipment intended to be used in a public telecommunications network are covered by this EMC RF device testing document. Communication between network termination points is made possible by this. For Example:

Changing the equipment:

exchanges for local telephones

concentrators for remote switching

Worldwide switches

Equipment used for non-radio transmission and ancillary purposes:


equipment for lines and repeaters

apparatus for supplying power. The following items fall under this category: dedicated communications network power supplies, central power plant end of suite power supplies, and uninterruptible power supplies.

Equipment for supervision:

Devices for network management

operator accessibility to maintenance tools

traffic monitoring devices

Line test apparatus

dependable test units

Either standalone equipment or other pieces of telecommunications network equipment execute the role of supervision. If the supervision function is a component of the network hardware, the test result is assessed concurrently with other features.

To guarantee a reasonable level of immunity for the equipment under test, this ETSI EN 300 386 specification mandates EMC tests. Extreme instances are not covered by the levels, though. These can happen anywhere, but the pobability of them happening is low.

Network for telecommunications, a network that is run under a license issued by a national telecommunications body is what is meant by this word. provides communication services between Network Termination Points (NTPs), except terminal devices beyond NTPs


ETSI EN 300 386’s for Electrical Compliance

One port is tested for immunity after another. Signal ports that are not always connected are exempt from the immunity test.


ETSI EN 300 386 immunity testing uses a variety of test techniques. These techniques consist of

Electrostatic discharge (ESD) only affects the EUT’s points and surfaces that are anticipated to be touched during routine use.

Electrical rapid transients/bursts: EN 61000-4-4, heavy industrial settings, describes the immunity test and lab conditions.

Surges: Both indoor and outdoor signal line ports are affected by this. Due to the CDN’s effect on the testing equipment, normal operation might not be possible. When this happens, there is no need for an immunity test.

Resistance to persistent conducted signals: Radio frequencies higher than 150 kHz are used with both AC and DC power connections.

Immunity to electromagnetic fields: EN 61000-4-3, light industrial environment testing, describes the RF test procedure.

Immunity to power supply disturbances: This approach employs both AC and DC power ports for low-frequency disturbances.

The electromagnetic field intensity of the emissions that your EMC device unintentionally produces is measured during emission tests.

Similar to immunity testing, emission testing includes a variety of test techniques of its own, such as:

AC power port: EN 55022 specifies the test procedure for conducted emission on AC power ports in the frequency range of 0.15 MHz to 30 MHz.

DC power port: Cables longer than 3 meters are not permitted to be used to connect power ports to the supplied equipment. A synthetic network connects the EUT to the DC power source. As a result, the impedance across EUT at the measurement site is defined.

Telecommunication port: The frequency range of 0,15 MHz to 30 MHz is covered by EN 55022 for conducted emissions on telecommunication ports.

Radiated emission: The test procedure and conditioning in EN 55022 are applicable for frequency ranges between 30 MHz and 6,000 MHz.

ETSI EN 300 386 expert Testing for EMC Unintentional Regulations

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