ANSI SCTE 203:2019 pdf free download – Product Environmental Requirements for Cable Telecommunications Facilities – Test Methods
2.2 Equipment Static Load (chassis static force test)
No mechanical damages or visible deformation, exposure to shock hazard or sharp edges shall occur when the equipment housing is subjected to a static force of 25lbf (111N) applied via a 1.2 inch diameter steel hemisphere for a period of one (1) minute. The equipment shall withstand the static load when applied to various locations on the top, bottom, right side, and left side of the equipment both when it is free standing and when it is housed or mounted using the vendor supplied mounting brackets.
2.3 Impact Force Resistance
The external metal enclosure of the device / product (intended for use in a controlled environment) shall be subjected to an impact generated by a free-falling smooth, solid steel sphere 2 inches (5.08cm) in diameter and  weighing approximately 1.18 lbs (0.535Kg).
• The sphere is to fall freely form a height of 51 inches (129.54cm) at various locations on the outside of the enclosure.
• The tests shall not result in permanent distortion to the extent that wire to ground or chassis spacing is reduced below the following values:
For 0 to 50 Vrms peak: 1/16”
For >50 to 150 Vrms peak: 1/4″
For 150 to 600 Vrms peak: 1/2″
• The tests shall not result in any distortion that produces contact of the enclosure with un-insulated electrically active parts other than those connected in a low voltage circuit.
• The tests shall not result in the unit developing any opening(s) that expose electrically active un-insulated parts that create a risk of electrical shock or high energy current levels.
2.4 Microphonics Emissions
• The device / product shall withstand minimum impact energy of 0.7 Newton-meters (Nm) applied to the device / product at various chassis locations without harmful or detrimental effect to any functional service provided by the test specimen (i.e., bit errors, spurious emissions, macro-blocking, interruption, lock-up or any other signal flow impairment).
• Microphonics impacts should be made with a calibrated impact hammer such as the E D &D Models 5110 or F22.50 (or equivalent).
• Information on the models listed above may be reviewed at http://www.productsafet.com.
• Specification reference for the type of impact hammer to be used is IEC 68-2-63 / 1991 (or latest version).
• Impacts shall be imparted to each of the six operational planes of the device / product to be tested.
• Depending upon the size of the product each operational plane should be divided into one or more areas and multiple impacts should be imparted to each area.
• Appropriate notations shall be made as to the location where the microphonics impact force is applied when any and all signal flow impairments are seen.
• Documentation should include written notes, diagrams, pictures, etc.
• Measurements shall be made while any and all signal flow(s) is (are) monitored for discontinuities and/ or interruptions