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1. What form-factors are used for 800G transceivers?<\/strong> QSFP-DD Form Factor<\/strong>: QSFP-DD is short for Quad Small Form-factor Pluggable \u2013 Double Density. QSFP-DD is currently the preferred package for 800G optical modules, the QSFP-DD transceivers double the electrical lane density from 4 of QSFP to 8 of QSFP-DD. It can reach 800G if each electrical lane modulated at 100Gb\/s.<\/p>\n 2. What\u2019s the difference between 800G QSFP-DD and OSFP?<\/strong> 3. Can an OSFP transceiver plugged into a OSFP-DD port and vice versa?<\/strong> 4. Can an OSFP at one end of an 800G link interoperate with a QSFP-DD at the other?<\/strong> 5. Can an 800G dual-port OSFP transceiver operate with only one port?<\/strong> PC and UPC refers to \u201cPhysical Contact\u201d or \u201cUltra Physical Contact\u201d fibers. APC refers to \u201cAngled Physical Contact\u201d fibers. MPO\/UPC (flat) cannot be mated together with MPO\/APC (angled) connectors.<\/p>\n 7. What are the cooling methods for 400G\/800G transceivers?<\/strong> 8. What 800G transceivers are available from TARLUZ?<\/strong> <\/td>\n 30m@OM3<\/td>\n<\/tr>\n 30m@OM3<\/td>\n<\/tr>\n 30m@OM3<\/td>\n<\/tr>\n 1. What form-factors are used for 800G transceivers? There are two main form-factors for 800G transceivers now, the OSFP and the QSFP-DD: OSFP Form Factor: OSFP is an abbreviation of Octal Small Form-factor Pluggable. This transceiver with Octal (8) electrical lanes, with each lane modulated at 100Gb\/s to reach a bandwidth of 800Gb\/s. It is […]<\/p>\n","protected":false},"author":1,"featured_media":18642,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1490],"tags":[],"class_list":["post-18633","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-800g"],"yoast_head":"\n
\nThere are two main form-factors for 800G transceivers now, the OSFP and the QSFP-DD:
\nOSFP Form Factor<\/strong>: OSFP is an abbreviation of Octal Small Form-factor Pluggable. This transceiver with Octal (8) electrical lanes, with each lane modulated at 100Gb\/s to reach a bandwidth of 800Gb\/s. It is slightly larger than the QSFP-DD. With an integrated heat sink, it can greatly improve heat dissipation performance.<\/p>\n
\nQSFP-DD is smaller and suitable for high-density port layout. In addition, the power consumption of OSFP is slightly higher than that of QSFP-DD. the QSFP-DD form factor is fully backward compatible with QSFP56, QSFP28, and QSFP+, while OSFP is not.<\/p>\n
\nNo, the OSFP and QSFP-DD are different form-factors, the size is different, QSFP-DD with the size of 89.4*18.35*8.5mm, and OSFP with the size of 107.8*22.58*13.0mm. QSFP-DD optics should be installed in QSFP-DD fiber port, and OSFP optics should be installed in the OSFP ports.<\/p>\n
\nYes. The OSFP and QSFP-DD denote the module’s physical form factor. The OSFP and QSFP-DD modules will interoperate with each other if the Ethernet media types are the same.<\/p>\n
\nYes, if only one port is used, the transceiver will function at the rate of 400G.
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\n6. Why should using MPO\/APC or MTP\/APC connectors used for 800G OSFP transceivers with MPO receptacles?<\/strong>
\nThe 100G-PAM4 transceivers are more sensitive to back reflections and use the MPO-12\/APC or Angled Polished Connector. The APC connector with an 8-degree polish on the end that causes the back reflections to be diverted into the fiber side cladding and away from the transmitter.<\/p>\n
\nThere are two types: Finned-top for enhanced heat dissipation in switches and Flat Top typically used in NlCs due to space limits.<\/p>\n
\nThe 800G modules provided by TARLUZ are shown in the table below<\/p>\n\n\n
\n Type<\/td>\n Product<\/td>\n Form Factor<\/td>\n Wavelength<\/td>\n Connector<\/td>\n Reach<\/td>\n<\/tr>\n \n InfiniBand<\/p>\n OSFP-SR8-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 850nm<\/td>\n Dual MTP\/MPO-12 APC<\/td>\n 50m@OM4\/<\/p>\n \n OSFP-DR8-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 1310nm<\/td>\n Dual MTP\/MPO-12 APC<\/td>\n 500m<\/td>\n<\/tr>\n \n OSFP-2FR4-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 1271nm, 1291nm, 1311nm and 1331nm<\/td>\n Dual LC Duplex UPC<\/td>\n 2km<\/td>\n<\/tr>\n \n Ethernet<\/td>\n OSFP-SR8-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 850nm<\/td>\n Dual MTP\/MPO-12 APC<\/td>\n 50m@OM4\/<\/p>\n \n OSFP-DR8-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 1310nm<\/td>\n Dual MTP\/MPO-12 APC<\/td>\n 500m<\/td>\n<\/tr>\n \n OSFP-2FR4-800G<\/a><\/td>\n OSFP Finned Top<\/td>\n 1271nm, 1291nm, 1311nm and 1331nm<\/td>\n Dual LC Duplex UPC<\/td>\n 2km<\/td>\n<\/tr>\n \n OSFP800-2LR4-A<\/a><\/td>\n OSFP Finned Top<\/td>\n 1271nm, 1291nm, 1311nm and 1331nm<\/td>\n Dual Duplex LC UPC<\/td>\n 10km<\/td>\n<\/tr>\n \n QDD-SR8-800G<\/a><\/td>\n QSFP-DD<\/td>\n 850nm<\/td>\n MTP\/MPO-16 APC<\/td>\n 50m@OM4\/<\/p>\n \n QDD-DR8-800G<\/a><\/td>\n QSFP-DD<\/td>\n 1310nm<\/td>\n MTP\/MPO-16 APC<\/td>\n 500m<\/td>\n<\/tr>\n \n QDD-DR8P-800G<\/a><\/td>\n QSFP-DD<\/td>\n 1310nm<\/td>\n MTP\/MPO-16 APC<\/td>\n 2km<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"