SIST EN 62150-2:2005

SLOVENSKI SIST EN 62150-2:2005

STANDARD
november 2005
Aktivne komponente in naprave optičnih vlaken – Postopki preskušanja in
merjenja – 2. del: ATM-PON oddajniki in sprejemniki (IEC 62150-2:2004)
Fibre optic active components and devices - Test and measurement procedures -
Part 2: ATM-PON transceivers (IEC 62150-2:2004)
ICS 33.180.20 Referenčna številka
SIST EN 62150-2:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 62150-2
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2004

ICS 33.180.20


English version


Fibre optic active components and devices –
Test and measurement procedures
Part 2: ATM-PON transceivers
(IEC 62150-2:2004)


Composants et dispositifs actifs à fibres Aktive Lichtwellenleiter-Bauteile und -
optiques – Bauelemente - Prüf- und Messverfahren
Procédures d'essais et de mesures Teil 2: ATM-PON-Sender-Empfänger
Partie 2: Emetteurs-récepteurs ATM-PON (IEC 62150-2:2004)
(CEI 62150-2:2004)






This European Standard was approved by CENELEC on 2004-10-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62150-2:2004 E

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EN 62150-2:2004 - 2 -
Foreword
The text of document 86C/624/FDIS, future edition 1 of IEC 62150-2, prepared by SC 86C, Fibre optic
systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel
vote and was approved by CENELEC as EN 62150-2 on 2004-10-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2005-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62150-2:2004 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60617 NOTE Harmonized in 60617 series (not modified).
IEC 60793 NOTE Harmonized in 60793 series (not modified).
IEC 60794 NOTE Harmonized in 60794 series (not modified).
IEC 60874 NOTE Harmonized in 60874 series (not modified).
IEC 61280 NOTE Harmonized in 61280 series (not modified).
IEC 61300 NOTE Harmonized in 61300 series (not modified).
IEC 61315 NOTE Harmonized as EN 61315:1997 (not modified).
__________

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- 3 - EN 62150-2:2004
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
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.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 61280-1-3 1998 Fibre optic communication subsystem EN 61280-1-3 1999
basic test procedures
Part 1-3: Test procedures for general
communication subsystems - Central
wavelength and spectral width
measurement

IEC 61280-2-2 1998 Part 2-2: Test procedures for digital EN 61280-2-2 1999
systems - Optical eye pattern, waveform,
and extinction ratio

1) 2)
IEC 62148-6 - Fibre optic active components and EN 62148-6 2003
devices - Package and interface
standards
Part 6: ATM-PON transceivers

IEC 62149-5 2003 Fibre optic active components and EN 62149-5 2003
devices - Performance standards
Part 5: ATM-PON transceivers with LD
driver and CDR Ics

1)
ITU-T - Broadband optical access systems based - -
Recommendation on Passive Optical Networks (PON)
G.983.1





1)
Undated reference.
2)
Valid edition at date of issue.

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NORME CEI
INTERNATIONALE IEC
62150-2
INTERNATIONAL
Première édition
STANDARD
First edition
2004-11
Composants et dispositifs actifs
à fibres optiques –
Procédures d'essais et de mesures –
Partie 2:
Emetteurs-récepteurs ATM-PON
Fibre optic active components and devices –
Test and measurement procedures –
Part 2:
ATM-PON transceivers
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. 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
CODE PRIX
PRICE CODE S
Commission Electrotechnique Internationale
International Electrotechnical Commission
ɆɟɠɞɭɧɚɪɨɞɧɚɹɗɥɟɤɬɪɨɬɟɯɧɢɱɟɫɤɚɹɄɨɦɢɫɫɢɹ
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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62150-2 ” IEC:2004 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION. 9
1 Scope and object.11
2 Normative references.11
3 Abbreviations.11
4 Standard ambient conditions.13
5 Apparatus.13
5.1 Power supply.13
5.2 Optical power meter.15
5.3 Variable optical attenuator .15
5.4 Pulse pattern generator .15
5.5 Optical splitter.15
5.6 Oscilloscope.15
5.7 Optical jumper cable.15
5.8 BER detector.15
5.9 Reference Tx and reference Rx.15
5.10 Calibrated optical spectrum analyzer.17
5.11 Low-pass filter.17
5.12 Optical-to-electrical (O/E) converter .17
6 Test sample.17
7 Testing and measuring procedures .17
7.1 Rx alarm function.19
7.2 Tx shutdown function.23
7.3 Mean launched power: P .25
mean
7.4 Centroidal wavelength and spectral width.29
7.5 Extinction ratio and mask test .31
7.6 Receiver sensitivity (S) and receiver overload (S ) .33
O
8 Test result.41
8.1 Required information.41
8.2 Available information.41
Bibliography.45
Figure 1 – Testing and measuring configuration for Rx alarm function .21
Figure 2 – Relation between receiver input power and alarm voltage.23
Figure 3 – Testing and measuring configuration for transmitter shutdown function .25
Figure 4 – Testing and measuring configuration for mean launched power .27
Figure 5 – Burst signal pattern .27
Figure 6 – Testing and measuring configuration for mean launched power .29
Figure 7 – Testing and measuring configuration for extinction ratio and mask test .31
Figure 8 – Testing and measuring configuration for receiver sensitivity and overload.35
Figure 9 – Burst signal patterns for measurement .37

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62150-2 ” IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
TEST AND MEASUREMENT PROCEDURES –
Part 2: ATM-PON transceivers
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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
International Standard IEC 62150-2 has been prepared by sub-committee 86C: Fibre optic
systems and active devices, of IEC technical committee 86: Fibre optics.
The text of this standard is based on the following documents:
FDIS Report on voting
86C/624/FDIS 86C/633/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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62150-2 ” IEC:2004 – 7 –
IEC 62150 consists of the following parts, under the general title Fibre optic active
components and devices – Test and measurement procedures:
1)
Part 1: General and Guidance
Part 2: ATM-PON transceivers
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the
data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
___________
1)
To be published.

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62150-2 ” IEC:2004 – 9 –
INTRODUCTION
This International Standard specifies testing and measuring procedures for optoelectronic
properties of asynchronous-transfer-mode passive optical network (ATM-PON) transceivers.
The package interface dimensions and optoelectronic performance of the transceivers are
defined in IEC 62148-6 and IEC 62149-5, respectively.

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62150-2 ” IEC:2004 – 11 –
FIBRE OPTIC ACTIVE COMPONENTS AND DEVICES –
TEST AND MEASUREMENT PROCEDURES –
Part 2: ATM-PON transceivers
1 Scope and object
This part of IEC 62150 specifies testing and measuring procedures for fibre optic transceivers
for asynchronous-transfer-mode passive optical network (ATM-PON) systems recommended
by ITU-T G.983.1. These testing procedures correspond to methods of examining whether the
transceivers satisfy the performance specifications defined in IEC 62149-5. On the other hand,
the measuring procedures correspond to methods of precise measurement for such
transceivers. The receiver sections of these transceivers can handle burst signals. Therefore,
some procedures described in this standard correspond to the burst signal transmission.
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 61280-1-3:1998, Fibre optic communication subsystem basic test procedures – Part 1-3:
Test procedures for general communication subsystems – Central wavelength and spectral
width measurement
IEC 61280-2-2:1998, Fibre optic communication subsystem basic test procedures – Part 2-2:
Test procedures for digital systems – Optical eye pattern, waveform, and extinction ratio
IEC 62148-6, Fibre optic active components and devices – Package and interface standards –
Part 6: ATM-PON transceivers
IEC 62149-5:2003, Fibre optic active components and devices – Performance standards –
Part 5: ATM-PON transceivers with LD driver and CDR ICs
ITU-T G.983.1, Broadband optical access systems based on Passive Optical Networks (PON)
3 Abbreviations
For the purposes of this document, the following abbreviations are applicable.
3.1
BER
bit error ratio characteristic
3.2
NRZ
non-return to zero

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62150-2 ” IEC:2004 – 13 –
3.3
PRBS
pseudo random binary sequence
3.4
Tx
transmitter and /or transmitter section of ATM-PON transceivers
3.5
Rx
receiver and /or receiver section of ATM-PON transceivers
3.6
SLM-LD
single longitudinal mode laser diode
3.7
MLM-LD
multi-longitudinal mode laser diode
4 Standard ambient conditions
Standard ambient conditions need to be controlled within some range to ensure proper
correlation of data obtained from measurements and tests conducted in various facilities. Test
and measurement procedures shall be conducted under the following ambient conditions
unless otherwise specified. In some cases, special ambient conditions may be needed. Such
conditions can be specified in the performance standard.
Ambient conditions for carrying out measurements and tests are as follows:
Temperature Relative humidity Air pressure
qC % KPa (mbar)
18 to 28 25 to 75 86 to 106
(860 mbar to 1 060 mbar)
Variations in ambient temperature and humidity shall be kept to a minimum during a series of
measurements.
5 Apparatus
5.1 Power supply
In the d.c. power supply, the voltage fluctuation shall not exceed ±0,5 % or 10 mV, whichever
is the larger. In the a.c. power supply, the higher harmonic content shall not exceed 5 %. If a
commercial supply is used, the higher harmonic content shall not exceed 10 %.
In tests to measure a.c. output, the ripple content of the d.c. power supply, higher harmonic
content of the a.c. power supply and a.c. impedance of the d.c. supply circuit through which
a.c. current flows shall have small values so that they will not affect the measurements. The
power supply shall be sufficient to protect against surges.

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62150-2 ” IEC:2004 – 15 –
5.2 Optical power meter
The optical power meter used shall have a resolution of at least 0,1 dB and shall have been
calibrated for the wavelength and dynamic range of operation for the equipment to be tested.
5.3 Variable optical attenuator
The attenuator shall be capable of attenuation in steps of less than or equal to 0,25 dB and
should be able to provide total attenuation that is 5 dB to 10 dB more than the system gain.
Care should be taken to avoid back reflection into the Tx.
5.4 Pulse pattern generator
The pulse pattern generator shall be capable of providing to the system PRBS signals and
programmable word patterns that are consistent with the signal format (pulse shape,
amplitude, etc.) required at the system input electrical interface of the Tx device.
5.5 Optical splitter
Optical splitter (coupler) should have one input port and two output ports, equipped with
appropriate connectors. The splitting ratio for the output ports should be approximately 50 %
(unless otherwise specified). Since ATM-PON transceiver adopts the WWDM (1,55/1,3 Pm
WDM), an optical splitter whose splitting ratio has little wavelength dependence should be
used.
5.6 Oscilloscope
The oscilloscope that displays the optical and/or electrical eye patterns should have a
bandwidth well in excess of the bandwidth of the low-pass filter, so that the oscilloscope is not
the bandwidth-limiting component of the measurement system. The oscilloscope shall be
triggered either from a local clock signal that is synchronous with the optical and/or electrical
eye patterns, or from a synchronization signal derived from the optical waveform itself.
5.7 Optical jumper cable
Single-mode fibre jumper cables with the appropriate connectors shall be used.
5.8 BER detector
The BER detector evaluates the BER performance of the system with various signal formats
(programmable word pattern, PRBS, etc.) .
5.9 Reference Tx and reference Rx
A Tx and/or an Rx shall be combined with the tested Tx and/or tested Rx in the measurement
configuration. The performance of the reference Tx and/or Rx hall be high enough for testing
and measuring of the optoelectronic properties of ATM-PON transceivers. Especially,
important is that the reference Tx have a bandwidth that is much higher than 155,52 Mbit/s
and an extinction ratio of more than 10 dB.

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62150-2 ” IEC:2004 – 17 –
5.10 Calibrated optical spectrum analyzer
The test equipment shall utilize a dispersive spectro-photometric method to resolve the optical
spectral distribution. The resolution for MLM-LDs shall be better than 0,2 nm, and 0,1 nm for
SLM-LDs, with a 50 nm range for both types of LDs.
5.11 Low-pass filter
To ensure repeatability and accuracy, a low-pass filter that has the following characteristics
shall be located in the signal path before the oscilloscope.
Low-pass filter characteristics:
characteristic impedance: 50 : nominal
–3 dB bandwidth: 0,75/T Hz, where T is the bit interval of the data signal
th
filter type: 4 -order Bessel-Thomson
Further filter specifications are described in 3.1.3 of IEC 61280-2-2.
5.12 Optical-to-electrical (O/E) converter
The O/E converter shall be typically a high-speed photodiode, followed by electrical amplifiers
and shall be able to reproduce the optical waveform with sufficient fidelity to ensure a
meaningful measurement. Further specifications are described in 3.1.1 of IEC 61280-2-2.
6 Test sample
The test sample shall be an ATM-PON transceiver having the performance defined in
IEC 62149-5. The tested transceiver shall be installed in each testing and/or measuring
configuration, as shown in the figures in each subclause.
7 Testing and measuring procedures
In order to specify the testing and measuring procedures, the following symbols are used:
P
TH Alarm threshold for received optical power
V  Low-level alarm output voltage
ALL
V High-level alarm output voltage
ALH
P Launched optical power without input to transmitter
SH
V High-level shutdown input voltage
SDH
V Low-level shutdown input voltage
SDL
P Mean launched power specified in ITU-T G.983.1
mean
P Average launched power under burst mode operation
ave
S Receiver overload
O
A Frame length
n Number of the burst signals within a frame
B Burst signal length
B1 Burst signal lengths for burst signal pattern 1
B2 Burst signal lengths for burst signal pattern 2

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62150-2 ” IEC:2004 – 19 –
7.1 Rx alarm function
7.1.1 Purpose
The alarm output voltage shall be changed from high to low when the incident optical signal
power is below the threshold value (P : –30 dBm for class B transceiver, –33 dBm for
TH
class C transceiver). This clause defines the testing and measuring procedures for the Rx
alarm function of the ATM-PON transceiver.
7.1.2 Testing and measuring configuration
Unless otherwise specified, a tested ATM-PON transceiver and a reference Tx shall be
installed in the measuring and testing configuration, as shown in Figure 1.
7.1.3 Calibration of the optical splitter
a) Before measurement and testing, the optical splitter shall be calibrated as stated below.
b) Operate the reference Tx under normal operating conditions and apply the 155,52 Mbit/s-
23
NRZ-PRBS 2 –1 signal (mark ratio 50 %) to the signal input terminal.
c) Connect the optical output port of the reference Tx with the input port of the optical splitter
through the jumper cable and variable optical attenuator.
d) Connect output port A of the optical splitter with the input port of the optical power meter
through the jumper cable.
e) Adjust the variable optical attenuator so that the output optical power of port A is around
P . Record its value (P ).
TH A
f) Connect output port B of the optical splitter with the input port of the optical power meter
through the jumper cable and record the optical power of port B (P ).
B
g) Connect output port A of the optical splitter with the input port of optical power meter
through the jumper cable again. Connect output port B of the optical splitter with the tested
ATM-PON transceiver, as shown in Figure 1.
h) Calculate the ratio of P /P and use it as a calibration factor between the incident optical
B A
power (P ) and optical power meter indication (P ).
B A

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62150-2 ” IEC:2004 – 21 –
Optical
Power supply and pulse
power
pattern generator
meter
Jumper
Cable
G
DC power supply
Variable optical
Port A
attenuator
Port B ATM-PON
Optical
Reference
transceiver
splitter
V
Tx
ALH
under test
or
V
ALL
Jumper cable
IEC  1277/04
Figure 1 – Testing and measuring configuration for Rx alarm function
7.1.4 Measuring procedures
a) Drive the tested ATM-PON transceiver under normal operating conditions and confirm that
the alarm output voltage is in the low-level (V ) range specified in IEC 62149-5.
ALL
b) The tested ATM-PON transceiver and a reference Tx shall be installed in the configuration
shown in Figure 1.
23
c) Apply the 155,52 Mbit/s-NRZ-PRBS 2 –1 signal (mark ratio 50 %) to the signal input
terminal.
d) Adjust the variable optical attenuator so that P is much lower than P and record the P
B TH B
value as a P .
IL
e) Adjust the variable optical attenuator so that P exceeds P and record the alarm output
B TH
voltage.
f) Confirm that the alarm output voltage is changed from low-level (V ) to high-level (V )
ALL ALH
specified in IEC 62149-5 when P is around P .
B TH
g) Adjust the variable optical attenuator so that P reaches the overload value (S ) and
B O
record the alarm output voltage and confirm that the alarm output voltage is in the high-
level (V ) range specified in IEC 62149-5.
ALH
h) Adjust the variable optical attenuator so that P reaches P with recording the alarm
B IL
output voltage.
i) Confirm that the alarm output voltage is changed from high-level (V ) to low-level (V )
ALH ALL
when P is below P .
B IL
As a result of the above procedures, a relation between P and the alarm output voltage is
B
obtained as a hysteresis curve as shown in Figure 2. This hysteresis curve is the
measurement data of receiver alarm function.

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62150-2 ” IEC:2004 – 23 –
max.
V
ALH
min.
Alarm
output
voltage
max.
V
ALL
min.
P S
P
TH O
IL
Receiver input optical power (P )
B
IEC  1278/04
Figure 2 – Relation between receiver input power and alarm voltage
7.1.5 Testing procedures
a) Operate the tested ATM-PON transceiver under normal operating conditions and confirm
that the alarm output voltage is in the low-level (V ) range.
ALL
b) The tested ATM-PON transceiver and a reference Tx shall be installed in the configuration
shown in Figure 1.
23
c) Apply the 155,52 Mbit/s-NRZ-PRBS 2 –1 signal (mark ratio 50 %) to the signal input
terminal.
d) Adjust the variable optical attenuator so that the P coincides with P and confirm that
B TH
the alarm output voltage is in the high-level (V ) range. Record the V value.
ALH ALH
e) Adjust the valuable optical attenuator so that the P is much lower than P and confirm
B TH
that the alarm output voltage is in the low-level (V ) range. Record the V value.
ALL ALL
7.2 Tx shutdown function
7.2.1 Purpose
The output optical power shall be decreased to be less than launched optica
...