IEC PAS 61753-081-2:2005

PUBLICLY
IEC
AVAILABLE
PAS 61753-081-2
SPECIFICATION
First edition
Pre-Standard
2005-02
Fibre optic interconnecting devices and
passive components performance standard –

Part 081-2:
Non-connectorized single-mode fibre optic
middle-scale 1 × N DWDM devices for category C –
Controlled environments
Reference number
IEC/PAS 61753-081-2(E)
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PUBLICLY
IEC
AVAILABLE
PAS 61753-081-2
SPECIFICATION
First edition
Pre-Standard
2005-02
Fibre optic interconnecting devices and
passive components performance standard –

Part 081-2:
Non-connectorized single-mode fibre optic
middle-scale 1 × N DWDM devices for category C –
Controlled environments
© IEC 2005 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
M
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – PAS 61753-081-2 © IEC:2005 (E)

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
FIBRE OPTIC INTERCONNECTING DEVICES AND

PASSIVE COMPONENTS PERFORMANCE STANDARD –

Part 081-2: Non-connectorized single-mode fibre optic middle-scale 1 × N

DWDM devices for category C – Controlled environments

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

A PAS is a technical specification not fulfilling the requirements for a standard but made
available to the public.
IEC-PAS 61753-081-2 has been processed by subcommittee 86B: Fibre optic interconnecting
devices and passive components, of IEC technical committee 86: Fibre optics
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
86B/1885A/NP 86B/1908/RVN
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned will transform it into an International Standard.

PAS 61753-081-2 © IEC:2005 (E) – 3 –

This PAS shall remain valid for an initial maximum period of three years starting from

2005-02. The validity may be extended for a single three-year period, following which it shall

be revised to become another type of normative document or shall be withdrawn.

– 4 – PAS 61753-081-2 © IEC:2005 (E)

FIBRE OPTIC INTERCONNECTING DEVICES AND

PASSIVE COMPONENTS PERFORMANCE STANDARD –

Part 081-2: Non-connectorized single-mode fibre optic middle-scale 1 × N

DWDM devices for category C – Controlled environments

1 Scope
This specification contains the minimum initial test and measurement requirements and

severities which a fibre optic middle-scale 1 × N (16 ≤ N ≤ 64) DWDM (Dense Wavelength
Division Multiplexing) device shall satisfy in order to be categorized as meeting the IEC
standard category C-controlled environments. The requirements cover devices with single-
mode non-connectorized pigtails and no circuit-board. There is also a distinction between
small-scale (N < 16) and large-scale (N > 64) 1 × N DWDM devices for the purpose of
standards.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60793-1-42:2001, Optical fibres – Part 1-42: Measurement methods and test
procedures – Chromatic dispersion
IEC 61300-2-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-1: Tests – Vibration (sinusoidal)
IEC 61300-2-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-4: Tests – Fibre/cable retention
IEC 61300-2-9, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 2-9: Tests – Shock
IEC 61300-2-14, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-14: Tests – Maximum input power

IEC 61300-2-17, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-17: Tests – Cold
IEC 61300-2-18, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-18: Tests – Dry heat – High temperature endurance
IEC 61300-2-22, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-22: Tests – Change of temperature
IEC 61300-2-42, Fibre optic interconnecting devices and passive components – Basic test
and measurement procedures – Part 2-42: Tests – Static side load for connectors
IEC 61300-3-2, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-2: Examinations and measurements – Polarization
dependence of attenuation in a single-mode fibre optic device

PAS 61753-081-2 © IEC:2005 (E) – 5 –

IEC 61300-3-6, Fibre optic interconnecting devices and passive components – Basic test and

measurement procedures – Part 3-6: Examinations and measurements – Return loss

IEC 61300-3-20, Fibre optic interconnecting devices and passive components – Basic test

and measurement procedures – Part 3-20: Examinations and measurements – Directivity of

fibre optic branching devices
IEC 61300-3-29, Fibre optic interconnecting devices and passive components – Basic test

and measurement procedures – Part 3-29: Examinations and measurements – Measurement

techniques for characterizing the amplitude of the spectral transfer function of DWDM

components
IEC 61753-2-1, Fibre optic interconnecting devices and passive components performance
standard – Part 2-1: Fibre optic connectors terminated on single-mode fibre for category U –
Uncontrolled environment
IEC 62074-1, Fibre optic WDM devices – Part 1: Generic specification for fibre optic WDM
devices
ITU-T Recommendation G.692, Optical interfaces for intra-office systems
ITU-T Recommendation G.694-1, Spectral grids for WDM applications – DWDM frequency
grid
3 Definitions
For the purposes of this document, the following terms and definitions, as well as those given
in IEC 62074-1, apply.
3.1
Middle-scale 1 x N DWDM device
wavelength-selective branching device which performs functions both of a wavelength
multiplexer and demultiplexer with DWDM channel spacing and a number of channel (N) of
16 ~ 64. The device is equipped with no circuit-board including a temperature controller
4 Tests
Unless otherwise specified, all test methods are in accordance with IEC 61300-x. Each test
defines the number of samples to be evaluated. DWDM devices used for each test are

intended to be previously unstressed new samples but may also be selected from previously
used samples if desired. All measurements shall be carried out at normal room conditions,
unless otherwise stated. If the device is provided with an active temperature control, this shall
be set at the setpoint specified by the manufacturer.
The requirements apply to every combination of input and output port.
All tests shall be carried out to validate performance over the required operating wavelength
range. As a result, single or multiple spectral bands may be chosen for the qualification, and
differing target specifications may be assigned to each spectral band.
Table 1 is intended to provide guidance on the wavelength ranges of the various spectral
bands. It is not intended for specification. Values of operating wavelength used in
performance verification shall be specified between the customer and supplier or shall be as
defined in the manufacturer’s specification.

– 6 – PAS 61753-081-2 © IEC:2005 (E)

Table 1 – Spectral bands for single-mode systems

Range
Band Descriptor
nm
O-band Original 1 260 to 1 360

E-band Extended 1 360 to 1 460

S-band Short wavelength 1 460 to 1 530

C-band Conventional 1 530 to 1 565

L-band Long wavelength 1 565 to 1 625

U-band Ultralong wavelength 1 625 to 1 675

5 Test report
Fully documented test reports and supporting evidence shall be prepared and be available for
inspection as evidence that the tests have been carried out and complied with.
6 Reference components
Testing for these components does not require the use of reference components.
7 Performance requirements
7.1 Dimensions
Dimensions shall comply with either an appropriate IEC interface standard or with those given
in the appropriate manufacturer's drawings, where the IEC interface standard does not exist
or cannot be used.
7.2 Test details and requirements
The requirements are given only for pigtailed DWDM devices. For connectorized components,
the connector performances shall be in compliance with IEC 61753-2-1.
A minimum length of fibre or cable of 1,5 m per port shall be included in all climatic and
environmental tests. The operating wavelengths, unless otherwise specified, shall be in
accordance with ITU-T Recommendations G.692 and
...