EMC compliance information

ELBY Designs verifies that a properly constructed modular system, based on its commercially available cases, power supplies, power distribution boards and a coherent selection of modules will meet the requirements defined by international certification bodies.

In the paragraphs that follow, Device refers to our EuroSynth modules, properly installed, powered, and patched as part of a EuroSynth system.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not approved by ELBY Designs may void the user’s authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

This device meets the requirements of the following standards:

  • EN55032. Electromagnetic compatibility of multimedia equipment. Emission requirements.
  • EN55103-2. Electromagnetic compatibility - Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use.
  • EN61000-3-2. Limits for harmonic current emissions (equipment input current ≤ 16 A per phase).
  • EN61000-3-3. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection.
  • EN62311. Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields (0Hz - 300GHz).

Recommendations

EMC

Each EuroSynth system is unique. If constructed using EuroSynth products then compliance is guaranteed. However, if you must use non-EuroSynth products then by following the simple rules listed below, you can help ensure that your system will perform well:-

Rack Construction

    • DO NOT use open rack frames or other kinds of enclosures that expose the modules and/or power distribution boards.
    • DO NOT leave empty slots in your system or large gaps between adjacent modules. Blind panels are helpful in achieving this goal.

Power Distribution and Power Supply

    • USE only a high-quality power supply and distribution sub-system to ensure that modules meet their optimal performance and behave according to the standards listed on this page.
    • USE modern, compact, power distribution boards with star grounding or full ground planes, and thick traces (or dedicated planes) for the supply rails.
    • AVOID flying bus boards.
    • AVOID DIY power supplies. ELBY Designs cannot test any possible build variation of any possible DIY project out there!

Patching

    • DO NOT use unnecessarily long patch cables. Keep all cables shorter than 1m.

3rd-party Modules

Modules from other manufacturers may have requirements (such as leaving empty slots in your rack open for ventilation) that go against these rules, or can radiate radio frequency energy well above the levels used in CE immunity tests. In such situations, we suggest you house the offending modules in a separate case.

Electrostatic discharges

ESD discharges may cause temporary disturbances such as clicks or spurious triggering of notes. The disturbance might take time to completely dissipate.

Noise and immunity to transmissions

As part of the certification process, ELBY Designs verifies that its modules do not act as unintentional radio receivers.

PCB Certificate of Conformance

  • PCBs meet the requirements of IPC-A-610 Acceptability of Circuits products
  • The bare materials comply with IPC-4101, Specifications of Bare Materials for Printed Boards