{"id":2780,"date":"2015-08-19T10:05:57","date_gmt":"2015-08-19T10:05:57","guid":{"rendered":"https:\/\/www.tarluz.com\/pt-br\/tutorial\/"},"modified":"2018-12-27T03:49:10","modified_gmt":"2018-12-27T03:49:10","slug":"tutorial","status":"publish","type":"page","link":"https:\/\/www.tarluz.com\/pt-br\/tutorial\/","title":{"rendered":"Tutorial"},"content":{"rendered":"

[vc_row rt_row_background_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_paddings=”true” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column rt_wrp_col_paddings=”false” rt_border_top=”” rt_border_bottom=”” rt_border_left=”” rt_border_right=”” rt_border_top_mobile=”” rt_border_bottom_mobile=”” rt_border_left_mobile=”” rt_border_right_mobile=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_position=”right top” rt_bg_attachment=”scroll”]\n

\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
13 de outubro de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

GPON vs. EPON: Technical Analysis and Comprehensive Comparison<\/a><\/h2> \n\t\t\t\n\n\t\t

I. What Is a Passive Optical Network (PON) A passive optical network (PON) is a network architecture that connects the service provider-side optical line terminal (OLT) to multiple optical network units (ONUs) or optical network terminals (ONTs). Between the optical line terminal (OLT) and the user is the optical distribution network (ODN), mainly composed of […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tFiber Optic Transceivers<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
10 de outubro de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

XPON Technologies Compared: GPON, EPON, XG-PON, and XGS-PON<\/a><\/h2> \n\t\t\t\n\n\t\t

XPON (Passive Optical Network) is an umbrella term for a class of fiber access technologies that use a point-to-multipoint architecture. Its core characteristic is that the central office (OLT) and the user side (ONU) are connected by a passive optical distribution network (ODN), with no active electronic equipment required anywhere in between. The GPON, EPON, […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tFiber Optic Transceivers<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
28 de setembro de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

Backward Compatibility: Upgrade to 1.6T Without Ripping Out Your Infrastructure<\/a><\/h2> \n\t\t\t\n\n\t\t

TL;DR: The 1.6T OSFP224 DAC is mechanically and electrically backward compatible with existing 400G and 800G OSFP ports, supporting signal protocols from 25G\/Lane NRZ all the way to 224G\/Lane PAM4. If your racks already run 400G or 800G, you don’t need to replace your switches, panels, or cabling infrastructure to step up to 1.6T\u2014just swap […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t1.6T<\/a>, DAC<\/a>, Data Center<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
28 de setembro de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

1.6T OSFP224 DAC: Finned Top vs. RHS<\/a><\/h2> \n\t\t\t\n\n\t\t

TL;DR: The 1.6T OSFP224 DAC is available in both Finned Top (IHS) and RHS (Riding Heat Sink) designs, with full interoperability between the two. Whether your rack uses air-cooled switches, liquid-cooled AI servers, or a mix of both, one DAC product line covers every thermal scenario\u2014reducing SKU complexity and simplifying inventory management across heterogeneous infrastructure. […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t1.6T<\/a>, DAC<\/a>, Data Center<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
24 de setembro de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

1.6T OSFP224 DAC vs. Optical Module + Fiber: Which Wins for AI Data Center Interconnects?<\/a><\/h2> \n\t\t\t\n\n\t\t

TL;DR: For in-rack connections under 1 meter, 1.6T OSFP224 DAC delivers zero power consumption, near-zero latency, and dramatically lower total cost compared to optical module + fiber solutions. Full details below. Quick Comparison Table Dimension 1.6T OSFP224 DAC Optical Module + Fiber Power Consumption Near-zero (passive) 20\u201330 W per module pair Latency Nanosecond-level (no O-E-O […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\t1.6T<\/a>, DAC<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
31 de agosto de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

What Is a QSFP Module?<\/a><\/h2> \n\t\t\t\n\n\t\t

A QSFP (Quad Small Form\u2011factor Pluggable) module is a compact, hot\u2011pluggable optical transceiver used to connect switches, routers, servers, and storage systems over fiber optic links. The “Quad” in its name refers to the four independent transmit and receive channels integrated within the module. Unlike SFP modules, which carry only a single channel, QSFP modules […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tFiber Optic Transceivers<\/a>, WHAT-IS<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
31 de agosto de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

What Is Coherent Detection?<\/a><\/h2> \n\t\t\t\n\n\t\t

Coherent detection is the foundational technology behind long\u2011haul, metro, and high\u2011capacity optical networks. Unlike direct detection, which only measures optical intensity, coherent detection recovers the complete optical field\u2014including amplitude, phase, frequency, and polarization state. How Coherent Detection Works A coherent receiver mixes the incoming optical signal with a local oscillator (LO) laser. The mixed signal […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tFiber Optic Transceivers<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
31 de agosto de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

InfiniBand vs. Ethernet: Which Is Better for AI Networking?<\/a><\/h2> \n\t\t\t\n\n\t\t

When building AI infrastructure, the networking choice is often one of the most strategic decisions\u2014it determines whether thousands of GPUs work together as a unified supercomputer or become a collection of expensive, isolated processors. Today, InfiniBand and Ethernet are the two dominant options, each with distinctly different design philosophies and use cases. InfiniBand: A Purpose\u2011Built […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tAI<\/a>, InfiniBand<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
31 de agosto de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

InfiniBand FAQ<\/a><\/h2> \n\t\t\t\n\n\t\t

What is the difference between NDR and XDR InfiniBand? NDR delivers up to 400 Gb\/s per port, while XDR doubles that to 800 Gb\/s per port. XDR also offers higher port density (e.g., greater aggregate throughput) and enhanced SHARP (in\u2011network computing) capabilities. How many ports does the NVIDIA QM9700 have? The QM9700 provides 64 400G […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tFAQ<\/a>, InfiniBand<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n
\n \n\n\n
\n\t\t\n\t\n\t\n\n\t
31 de agosto de 2026<\/a><\/div> \n\t
\n\n\t\t\n\t\t

Introduction to DAC, ACC, AEC, and AOC<\/a><\/h2> \n\t\t\t\n\n\t\t

These four cable types are common interconnect solutions used in data centers and AI clusters for high\u2011speed data transmission. Their primary differences lie in the\u00a0transmission medium\u00a0(copper or optical fiber) and the\u00a0signal enhancement method\u00a0(passive, active analog, or active digital), which determine their performance in terms of\u00a0transmission distance, cost, and power consumption. Core Concepts DAC (Direct Attach […]<\/p>\n\n\t\t\t\t\r\n\t\t

\r\n\r\n\t\t\t\t\t\t\r\n\t\t\tBlog_TARLUZ<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\t\t\t\r\n\t\t\tAOC<\/a>, Cable<\/a>, DAC<\/a><\/span>\r\n\t\t\t\r\n\t\t\t\r\n\t\t\t\r\n\t\t<\/div>\r\n\t\n\t<\/div> \n\n<\/article> \n\n<\/div>\n<\/div>\n