Fibre optic interconnecting devices and passive components performance standard - Non connectorised single-mode 980/1550 nm WWDM devices for category C. Controlled environment1 Scope This part of IEC 61753 contains the minimum initial test and measurement requirements and severities which a fibre optic pigtailed 980 1 550 nm WWDM device must satisfy in order to be categorized as meeting the requirements of category C (controlled environments), as defined in Annex A of IEC 617531. The requirements cover devices with single mode non connectorised pigtails. This device has three ports; 980 nm input, 1 550 nm input and common

group reduction factors can be derived for the same type of cable

particularly in developing countries

for service at ambient temperatures (subject to the restrictions described in 7

The system of reference constitutes a beneficial means of achieving the following objectives:

Who is BS EN IEC 60255-181‒ Requirements for frequency protection for

ISO 10896‑6 is of relevance

and tolerances on the dimensions

for its safe use

This part of IEC 62951 specifies the method for evaluating thin film transistor characteristics on flexible substrates under bulging

2 Examination object

1 are included in the NA to BS EN 1993-1-1

Guidance on the reinstatement of pavements has been moved to BS 7533-11