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1、 STD-JIS C bL13-ENGL 1997 i933b08 0552030 9TB m JAPANESE JIS C 6113:1997 INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Measuring methods of transmitting and/or receiving modules for middle and high speed fiber optic trans- mission t ICs 33.180.01 Descriptors : optica
2、l fibres, digital signals, optical communication systems, trans- Reference number : JIS C 6113 : 1997 (E) mitters, receivers, electrical measurement 18 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale
3、, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license from IHS -,-,- C 6113 :1997 Foreword This translation has ,een made based on the original Japanese Industrial Standard established by the Minister of International Trade and Industry through deliberations at Japanese In
4、dustrial Standards Committee in accordance with the Industrial Standardization Law. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of ut
5、ility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registrati
6、on of utility model after opening to the public which have the said technical properties. Date of Establishment: 1997-11-20 Date of Public Notice in Official Gazette: 1997-11-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Electronics JIS C 6113:1997, First English
7、edition published in 1998-11 Translated and published by: Japanese Standards Association 4-1-24, Akacaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. 1 O JSA 1998 Ali rights reserved. Unless otherwise specifie
8、d, 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. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSA
9、Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license from IHS -,-,- 1 JAPANESE INDUSTRIAL STANDARD JIS C 6113: 1997 Measuring methods of transmitting and/or receiving modules for middle and high speed fibe
10、r optic transmission Introduction This Standard specifies measuring methods of transmitting and/or receiving modules for middle and high speed fiber optic transmission with 2R (waveform reproducing and reshaping) or 3R (waveform reproducing and reshaping, and synchronous signal reproducing) function
11、s which are used for transmission of NR2 digital signal at a bit rate exceeding 10 Mb/s through optical fibers, in response to the requirement of early establishment of national Standard in such backgrounds that the market of fiber optic transmission link inside and outside of this country is spread
12、ing and the international standardization activity is promoted. 1 Scope This Japanese Industrial Standard specifies measuring method of transmitting and/or receiving modules for middle and high speed fiber optic transmission with at least waveform reproducing and reshaping functions which are used f
13、or transmission of digital signal at a bit rate exceeding 10 Mb/s through optical fibers. Remarks: The transmitting and/or receiving module for middle and high speed fiber optic transmission dealt with here means a module composed of a transmitter consisting of a light emitting diode as the light em
14、itting element, an electronic circuit and a joint with optical fiber and a receiver consisting of a light receiving element, an electronic circuit and a joint with optical fiber. It is the generic name of modules of the following three kinds in construction. (i) Transmitting module in which the abov
15、e transmitter is employed as an individual module. (2) Receiving module in which the above receiver is employed as an individual module. (3) Transmitting and receiving module in which the above transmitter and receiver are employed to form a module. 2 Normative references The following standards con
16、tain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS C 1102-1 Direct acting indicating analogue electrical measuring instruments and their accessories Part 1: Definitions and
17、 general requirements common to all parts General rules of transmitting and/or receiving modules for middle and high speed fiber optic transmission JIS C 6112 3 given in JIS C 6110, the following principal definitions apply: Definitions For the purpose of this Standard, in addition to the definition
18、s a) measurement optical fiber Such an optical fiber that its structural parameters and the structural parameters of the plug attached to it have respective values which satisfy the requirements of measurements. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=
19、IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C bL13-ENGL 1997 Li733b08 0552033 b07 9 2 C 6113 : 1997 b) reference transmitter and reference receiver Such transmitter and receiver that
20、 their electrical and optical characteristics have respective values which satisfy the requirements of each item in the relevant standard. 4 Atmospheric conditions for measurement 4.1 Standard conditions Unless otherwise specified, the measurements shall be carried out at a temperature 15 O C to 35
21、O C , a relative humidity 25 % to 85 % and an air pressure 860 hPa to 1060 hPa. If any doubt arises on the decision of measured values under these standard conditions, or if especially required, conditions of 4.3 shall be employed. If conversion to the reference conditions is necessary, conditions o
22、f 4.2 shall be employed. If it is difficult to carry out a test under the standard conditions, the test may be carried out under the conditions other than the standard conditions unless any doubt arises on the decision. 4.2 Reference conditions The reference conditions shall be a temperature 25 O C
23、, a relative humidity 45 % and an air pressure 860 hPa to 1060 hPa. However, only the temperature may be employed as the reference conditions. 4.3 OC, a relative humidity 45 % to 55 % and an air pressure 860 hPa to 1060 hPa. Referee conditions The referee conditions shall be a temperature 25 “C f 2
24、5 Measuring apparatus and equipment 5.1 Measuring power supply In the d.c. power supply the voltage fluctuation shall not exceed f0.5 % or 10 mV whichever is the larger, and in the a.c. power supply, the higher harmonic content shall not exceed 5 %. If commercial supply is used the higher harmonic c
25、ontent shall not exceed 10 %. In the test to measure a.c. output especially, the ripple content of d.c. power supply, higher harmonic content of a.c. power supply and a.c. impedance of d.c. supply circuit through which a.c. current flows, shall have respective small values so that they will not affe
26、ct the measurements. The power supply shall be enough protected against ingress of surges. 5.2 Instruments and measuring apparatus Unless otherwise specified, the instruments shall be those of class index 0.5 or better specified in JIS C 1102-i, and the measuring apparatus shall have an accuracy at
27、least equivalent thereto. Their impedances shall have such values that the influence on the measuring system can be ignored. If there is no instrument of class index 0.5 or better, or measuring apparatus of equivalent accuracy as standard products, the provision of 5.2 does not apply. Remarks: 5.3 O
28、ptical power meter The optical power meter to be used for measurements shall be calibrated at the appropriate wavelength and the sensitivity distribution on light receiving plane shall be sufficiently flat. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS E
29、mployees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C bL13-ENGL 1997 9 4933b08 0552014 543 Reference input electrical signal r 3 C 6113 : 1997 Waveform observing . device output electrical signal
30、 A 6 Measuring methods of electrical and optical characteristics Pattern generator 6.1 individual test) Transmission delay time (composite test, transmitter individual test, receiver 6.1.1 Purpose receiver under specified conditions. To measure the transmission delay time of transmitter and/or 6.1.2
31、 Measuring circuit be as illustrated in Fig. 1. The measuring circuit of transmission delay time shall Notes (I) In the case of transmitter individual test, the reference receiver is used. (2) In the case of receiver individual test, the reference transmitter is used. The dash line shows the connect
32、ion state in procedure 6.1.3 c). The optical delay in measurement optical fiber, variable optical attenuator, etc. and the delay in signal line of measurement circuit shall be previously calibrated. Remarks 1 2 Fig. 1 Measuring circuit of transmission delay time Copyright Japanese Standards Associat
33、ion Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 C 6113 : 1997 . 6.1.3 Measuring procedures PLY, PHLi, Drive the transmitter and receiver unde
34、r specified conditions. Apply the specified continuous input electrical signal of NRZ 1010. (mark density 50 %o to the transmitter as its input from the pattern generator. Input the optical output signal so prepared to the receiver through measurement optical fiber and optical attenuator. Adjust the
35、 variable optical attenuator so that the specified optical power is inputted into the receiver. Observe the waveforms of the output from the pattern generator and the output from the receiver by means of a waveform observing device such as an oscilloscope, and measure the time differences tpLH, t p
36、H between the said two waveforms at their 50 % amplitude value shown in Fig. 2. The optical delay in the measurement optical fiber, variable optical attenuator and the delay in the signal line of the measuring system shall be previously calibrated. If there is a pulse width jitter in the output elec
37、trical signal, carry out the measurement at the maximum value of the jitter. * .* z o u rn Logic “1“ 4 m I 50 % value o .3 3 Logic “1“ U a 4 a 50 %value sz a gy Logic “O“ E: . 3 Y r n o .3 Logic “1“ a 4 a 50 %value sz a gy Logic “O“ E: . 3 Y r n Remarks: This figure shows the case of positive logic,
38、 and in the case of negative logic, the logic “1“ in the figure should be read as logic “O“ and logic “O“ as logic “1“. Fig. 2 Transmission delay time Calculate transmission delay time t d from formula (i), formula (2) or formula (3). For composite transmitter and receiver test (1) td = max (tPLH, t
39、PHL) . For transmitter individual test (2) td = max (tPLH, tPHL) - tdr . . . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without lice
40、nse from IHS -,-,- STDSJIS C bL13-ENGL 1777 Li933b08 055201b 3Lb 5 C 6113 : 1997 For receiver individual test where max (PLH, P H L ) : the larger value among values of P L H and tdr : transmission delay time of reference receiver t d s : transmission delay time of reference In the case of composite
41、 test and receiver individual test, adjust the variable optical attenuator so that the minimum received optical power and the maximum received optical power are attained at the receiver, repeat the measurement of t d over the above range and take the maximum measured value as transmitting delay time
42、. In the case of composite test where a transmitter and a receiver are combined, use the test specimens as the transmitter and receiver under test. In the case of transmitter individual test, use the reference receiver in lieu of the specimen receiver, and in the case of receiver individual test, us
43、e the reference transmitter in lieu of the specimen transmitter. P H L . The value when they are equal transmitter f) 6.1.4 Items to be specified in detail specification Operating temperature Transmission delay time, rise time, fall time, distortion of pulse width, random jitter, maximum received op
44、tical power and minimum received optical power of reference receiver (the random jitter shall be sufficiently smaller than that of the transmitter under test). Transmission delay time, rise time, fall time, distortion of pulse width, random jitter, peak emission wavelength and output optical power o
45、f reference transmitter (the random jitter shall be sufficiently smaller than that of the receiver under test). Conditions for driving transmitter and receiver (supply voltage) Input signal for transmitter (transmission bit rate, waveform) Measurement optical fiber Maximum received optical power and
46、 minimum received optical power of receiver 6.2 individual test) Distortion of pulse width (composite test, transmitter individual test, receiver 6.2.1 Purpose receiver under specified conditions. To measure the distortion of pulse width of transmitter and/or 6.2.2 Measuring circuit be as illustrate
47、d in Fig. 3. The measuring circuit of distortion of pulse width shall Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 20:02:04 MDTNo reproduction or networking permitted without license fro
48、m IHS -,-,- 6 C 6113 : 1997 D.C. power supply Q Optical power I meter 1 I I I I I I I D.C. power supply I Q I Variable optical ; attenuator Measurement n Waveform Receiver under test l) electrical signal output electrical signal r U n Pattern generator U Remarks 1 The dash line shows the connection state in procedure 6 . 2 . 3 c). The optical delay in measurement optical fiber, variable optical attenuator, etc. and the delay in signal line of measurement circuit shall be previously calibrated. 2 Fig. 3 Measuring circuit of distortion of pulse width 6.2.3 Measuring procedure