What is BS EN 62496-2-2 - Optical circuit boards about?
BS EN 62496 is a series on optical circuit boards. Optical circuit boards are a laminated sandwich structure of conductive and insulating layers. PCBs have two complementary functions. BS EN 62496-2-2 specifies the measurement procedures for dimensions related to interface information of optical circuit boards (OCB), defined in IEC 62496-4.
Who is BS EN 62496-2-2 - Optical circuit boards for?
BS EN 62496-2-2 on optical circuit boards is useful for:
- Telecommunication component manufacturers
- Telecommunication equipment manufacturers
- Design engineers
- Quality control personnel
Why should you use BS EN 62496-2-2 - Optical circuit boards?
Optical circuit boards mechanically support electronic components using conductive pads in the shape designed to accept the component's terminals, and also electrically connect them using traces, planes and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. The measuring equipment consists of observation, shape measuring and data processing systems. The measurement system shall give reproducible results. An example of a total measuring system is illustrated in BS EN 62496-2-2.
Structural parameters for circular core shape are obtained by near field pattern observation of cross-sections specified in IEC 60793-1-45. The pitch between optical circuits is the distance between the centres of neighbouring cores of the optical circuits aboard. The measuring equipment consists of an observation system, dimension measuring system and data processing section. BS EN 62496-2-2 shows an example of the schematic construction of equipment. An optical position adjusting system consists of a light source, automatic fibre position adjustment stage, OCB holder, input/output fibre and a power meter. A schematic of the system illustrated in BS EN 62496-2-2 is a typical example of measurement systems for optical attenuation of an OCB stated in IEC 62496-2-1. The pattern pitch is obtained only by this method. Using BS EN 62496-2-2 you can specify the measurement procedures for dimensions related to interface information of optical circuit boards.
