What is BS EN IEC 60869‑1 - Fibre optic interconnecting devices and passive components about?
BS EN IEC 60869 is a series on fibre optic interconnecting devices and passive components. The passive optical device (component) controls a transmittance with a designed wavelength-independent transfer coefficient. BS EN IEC 60869‑1 applies to fibre optic passive power control devices. These have all the following general features:
- They are passive in that they contain no optoelectronic or other transducing elements
- They have two ports for the transmission of optical power and control of the transmitted power in a fixed or variable fashion
- The ports are non-connectorized optical fibre pigtails, connectorized optical fibres or receptacles
BS EN IEC 60869‑1 establishes generic requirements for the following passive optical devices:
- Optical attenuator
- Optical fuse
- Optical power limiter
BS EN IEC 60869‑1 also provides generic information including terminology for the IEC 61753-05x series.
Who is BS EN IEC 60869‑1 - Fibre optic interconnecting devices and passive components for?
BS EN IEC 60869‑1 on fibre optic passive components is useful for:
- Fibre optic equipment manufacturers
- Fibre optic components manufacturers and distributer
- Telecommunication sector
- Design engineer
- Quality control personnel
Why should you use BS EN IEC 60869‑1 - Fibre optic interconnecting devices and passive components?
Fibre optic interconnecting devices and passive components is a fibre optic telecommunications technology for delivering broadband network access to end customers. BS EN IEC 60869‑1 discusses the optical attenuator that is a passive optical device used for optical power reduction into or out of an optical device. The optical attenuator is normally used for a broad range of wavelengths, attenuating the power by a predetermined attenuation rate. There are two types of optical attenuators: a fixed optical attenuator and a variable optical attenuator.
The optical fuse is a passive device, designed to protect equipment and fibre cables from damage due to optical overpower, spikes and surges. When the input power is lower than a predetermined threshold power, the optical fuse remains transparent, ideally. However, the optical fuse becomes permanently opaque when the optical power exceeds the specified predetermined threshold level. The optical fuse is wavelength-independent in the region of its transparency. The optical fuse is bidirectional. The optical fuse protects against power spikes and surges. The optical fuse is placed either at the input port of an optical device, such as in the case of a detector or at the output port of a high-power device, such as in the case of a laser or optical amplifier. An activated (burnt) fuse permanently blocks the forward optical power without increasing the reflected power, thus preventing damage. The optical fuse can be used as an eye safety device.
BS EN IEC 60869‑1 also describes the optical power limiter (see Figure 4) is a passive device that regulates the optical power in fibres, producing a controlled, constant output power Pout-limit, as a result of varying input power higher than Pin-limit, and has no influence at powers below Pin-limit. Under normal operation, when the input power is low, the optical power limiter has no effect on the system. However, when the input power is high, the optical output power is limited to a predetermined level (Pout-limit). The optical power limiter can typically operate under continuous wave (CW) input up to 5 dB above Pin-limit and can sustain short-duration pulses and spikes (1 s/min) up to 8 dB above Pin-limit. Using BS EN IEC 60869‑1 you understand generic specifications for passive optical devices including terminology for the IEC 61753-05x series.
What’s changed since the last update?
BS EN IEC 60869‑1:2018 supersedes BS EN 60869‑1:2013. BS EN IEC 60869‑1:2018 includes some technical changes with respect to BS EN 60869‑1:2013. These include:
- The terms and definitions have been reviewed
- The requirement concerning the IEC quality assessment system has been reviewed
- The clause concerning quality assessment procedures has been deleted
- Annex G, relating to technical information on variable optical attenuators, has been added
