{"id":248174,"date":"2024-10-19T16:20:47","date_gmt":"2024-10-19T16:20:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61280-2-22012\/"},"modified":"2024-10-25T11:29:34","modified_gmt":"2024-10-25T11:29:34","slug":"bs-en-61280-2-22012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61280-2-22012\/","title":{"rendered":"BS EN 61280-2-2:2012"},"content":{"rendered":"

This standard specifies a gauging system for metric taper external threads and mating parallel internal threads as specified in DIN 158-1.<\/p>\n

Gauging of parallel internal threads is to be carried out as specified in ISO 1502.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nCONTENTS <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
9<\/td>\n4 Apparatus
4.1 General <\/td>\n<\/tr>\n
10<\/td>\n4.2 Reference receiver definition
4.3 Time-domain optical detection system
4.3.1 Overview
Figure 1 \u2013 Optical eye pattern, waveform and extinction ratio measurement configuration <\/td>\n<\/tr>\n
11<\/td>\n4.3.2 Optical-to-electrical (O\/E) converter
4.3.3 Linear-phase low-pass filter <\/td>\n<\/tr>\n
12<\/td>\n4.3.4 Oscilloscope
Figure 2 \u2013 Oscilloscope bandwidths commonly used in eye pattern measurements <\/td>\n<\/tr>\n
13<\/td>\n4.4 Overall system response
4.5 Oscilloscope synchronization system
4.5.1 General
Table 1 \u2013 Frequency response characteristics <\/td>\n<\/tr>\n
14<\/td>\n4.5.2 Triggering with a clean clock
4.5.3 Triggering using a recovered clock <\/td>\n<\/tr>\n
15<\/td>\n4.5.4 Triggering directly on data
Figure 3 \u2013 PLL jitter transfer function and resulting observed jitter transfer function <\/td>\n<\/tr>\n
16<\/td>\n4.6 Pattern generator
4.7 Optical power meter
4.8 Optical attenuator
4.9 Test cord
5 Signal under test
6 Instrument set-up and device under test set-up <\/td>\n<\/tr>\n
17<\/td>\n7 Measurement procedures
7.1 Overview
7.2 Extinction ratio measurement
7.2.1 Configure the test equipment
7.2.2 Measurement procedure <\/td>\n<\/tr>\n
18<\/td>\n7.2.3 Extinction ratio calculation
Figure 4 \u2013 Histograms centred in the central 20 % of the eye used to determine the mean logic one and 0 levels, b1 and b0 <\/td>\n<\/tr>\n
19<\/td>\n7.3 Eye amplitude
7.4 Optical modulation amplitude (OMA) measurement using the square wave method
7.4.1 General
7.4.2 Oscilloscope triggering
7.4.3 Amplitude histogram, step 1 <\/td>\n<\/tr>\n
20<\/td>\n7.4.4 Amplitude histogram, step 2
7.4.5 Calculate OMA
7.5 Contrast ratio (for RZ signals)
7.6 Jitter measurements
Figure 5 \u2013 OMA measurement using the square wave method <\/td>\n<\/tr>\n
21<\/td>\n7.7 Eye width
7.8 Duty cycle distortion (DCD) <\/td>\n<\/tr>\n
22<\/td>\n7.9 Crossing percentage
Figure 6 \u2013 Construction of the duty cycle distortion measurement <\/td>\n<\/tr>\n
23<\/td>\n7.10 Eye height
7.11 Q-factor\/signal-to-noise ratio (SNR)
7.12 Rise time
Figure 7 \u2013 Construction of the crossing percentage measurement <\/td>\n<\/tr>\n
24<\/td>\n7.13 Fall time
Figure 8 \u2013 Construction of the risetime measurement with no reference receiver filtering <\/td>\n<\/tr>\n
25<\/td>\n8 Eye-diagram analysis using a mask
8.1 Eye mask testing using the \u2018no hits\u2019 technique
Figure 9 \u2013 Illustrations of several RZ eye-diagram parameters <\/td>\n<\/tr>\n
26<\/td>\n8.2 Eye mask testing using the \u2018hit-ratio\u2019 technique
Figure 10 \u2013 Basic eye mask and coordinate system <\/td>\n<\/tr>\n
28<\/td>\n9 Test result
9.1 Required information
9.2 Available information
9.3 Specification information
Figure 11 \u2013 Mask margins at different sample population sizes <\/td>\n<\/tr>\n
29<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Fibre optic communication subsystem test procedures – Digital systems. Optical eye pattern, waveform and extinction ratio measurement<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2015<\/td>\n32<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":248179,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[648,2641],"product_tag":[],"class_list":{"0":"post-248174","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-180-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/248174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/248179"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=248174"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=248174"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=248174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}