{"id":5407,"date":"2025-08-18T00:00:00","date_gmt":"2025-08-18T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/qsfp28-100g-psm4-transceivers-for-data-centers\/"},"modified":"2026-06-22T08:21:27","modified_gmt":"2026-06-22T08:21:27","slug":"qsfp28-100g-psm4-transceivers-for-data-centers","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/qsfp28-100g-psm4-transceivers-for-data-centers","title":{"rendered":"Khai ph\u00e1 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i 100G m\u1eadt \u0111\u1ed9 cao: H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng module quang 100G PSM4"},"content":{"rendered":"
\"QSFP28<\/figure>\n\n\n\n

S\u1ef1 gia t\u0103ng kh\u00f4ng ng\u1eebng c\u1ee7a \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng si\u00eau quy m\u00f4 \u0111\u00f2i h\u1ecfi c\u00e1c k\u1ebft n\u1ed1i li\u00ean trung t\u00e2m d\u1eef li\u1ec7u (DCI) ng\u00e0y c\u00e0ng nhanh h\u01a1n, d\u00e0y \u0111\u1eb7c h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed h\u01a1n. \u0110\u00e2y l\u00e0 l\u00fac <\/span>module quang 100G PSM4 (Parallel Single-Mode 4-lane)<\/strong><\/span> \u2013 m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu v\u1eadn h\u00e0nh c\u00e1c li\u00ean k\u1ebft Ethernet 100 Gigabit (100GbE) hi\u1ec7u qu\u1ea3. H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111i s\u00e2u v\u00e0o nh\u1eefng l\u00fd do khi\u1ebfn PSM4 tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p then ch\u1ed1t cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/span><\/p>\n\n\n\n

\ud83d\udca1 Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00f4ng ngh\u1ec7 PSM4 gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng l\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u nh\u1eb1m \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng m\u1ea1nh m\u1ebd v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng.<\/p>\n\n\n\n

\ud83d\udcdd Module quang 100G PSM4 l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n

B\u1ed9 thu ph\u00e1t quang 100G PSM4 l\u00e0 m\u1ed9t module quang c\u00f3 th\u1ec3 c\u1eafm r\u1eddi, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n d\u1eabn Ethernet100G<\/strong> tr\u00ean s\u1ee3i quang \u0111\u01a1n mode <\/strong>(SMF)
<\/strong><\/a>. N\u00f3 s\u1eed d\u1ee5ng b\u1ed1n k\u00eanh quang \u0111\u1ed9c l\u1eadp, m\u1ed7i k\u00eanh ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 25 Gbps (s\u1eed d\u1ee5ng v\u1edbi \u0111i\u1ec1u ch\u1ebf NRZ<\/strong><\/a>) t\u1ea1i B\u01b0\u1edbc s\u00f3ng 1310nm<\/strong>. Kh\u00e1c v\u1edbi 100G
<\/strong> LINK-PP cung c\u1ea5p \u0111\u1ed9 tin c\u1eady cao, ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p<\/strong><\/a>, v\u1ed1n gh\u00e9p nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng v\u00e0o m\u1ed9t c\u1eb7p s\u1ee3i quang duy nh\u1ea5t, PSM4 y\u00eau c\u1ea7u t\u00e1m s\u1ee3i quang<\/strong> (4 s\u1ee3i ph\u00e1t, 4 s\u1ee3i thu) \u2013 m\u1ed7i k\u00eanh c\u00f3 m\u1ed9t c\u1eb7p s\u1ee3i ri\u00eang bi\u1ec7t. C\u00e1ch ti\u1ebfp c\u1eadn \u201cquang h\u1ecdc song song\u201d n\u00e0y mang l\u1ea1i nh\u1eefng l\u1ee3i th\u1ebf n\u1ed5i b\u1eadt.<\/p>\n\n\n\n

\ud83d\udcdd C\u00e1c l\u1ee3i th\u1ebf ch\u00ednh c\u1ee7a c\u00f4ng ngh\u1ec7 100G PSM4<\/strong><\/h2>\n\n\n\n
    \n

  1. Hi\u1ec7u qu\u1ea3 chi ph\u00ed:<\/strong> \ud83d\udcb0 PSM4 t\u1eadn d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc chi ph\u00ed th\u1ea5p h\u01a1n so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p gh\u00e9p b\u01b0\u1edbc s\u00f3ng nh\u01b0 CWDM4<\/strong>. Quang h\u1ecdc \u0111\u01a1n gi\u1ea3n h\u01a1n d\u1eabn \u0111\u1ebfn b\u1ed9 thu ph\u00e1t 100G chi ph\u00ed th\u1ea5p h\u01a1n<\/strong>, \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c tri\u1ec3n khai quy m\u00f4 l\u1edbn.<\/p><\/li>\n\n\n\n

  2. \u0110\u1ed9 tr\u1ec5 th\u1ea5p:<\/strong> \u26a1 \u0110\u01b0\u1eddng truy\u1ec1n song song tr\u1ef1c ti\u1ebfp l\u00e0m gi\u1ea3m t\u1ed1i \u0111a \u0111\u1ed9 ph\u1ee9c t\u1ea1p x\u1eed l\u00fd t\u00edn hi\u1ec7u, t\u1eeb \u0111\u00f3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 tr\u1ec5 c\u1ef1c th\u1ea5p<\/strong> \u2013 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ed1i v\u1edbi giao d\u1ecbch t\u1ea7n s\u1ed1 cao, c\u1ee5m AI v\u00e0 \u1ee9ng d\u1ee5ng t\u00e0i ch\u00ednh.<\/p><\/li>\n\n\n\n

  3. M\u1eadt \u0111\u1ed9 cao & Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> \u2b50 C\u00e1c module PSM4 th\u01b0\u1eddng c\u00f3 k\u00edch th\u01b0\u1edbc d\u1ea1ng th\u1ee9c QSFP28<\/strong>, cho ph\u00e9p m\u1eadt \u0111\u1ed9 c\u1ed5ng cao tr\u00ean c\u00e1c switch v\u00e0 router. Ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p cho ki\u1ebfn tr\u00fac l\u00e1-gai (leaf-spine architectures)
    <\/strong> and k\u1ebft n\u1ed1i switch top-of-rack (ToR)<\/strong> to k\u1ebft n\u1ed1i switch t\u1ed5ng h\u1ee3p\/ph\u00e2n ph\u1ed1i<\/strong> trong c\u00f9ng m\u1ed9t ph\u00f2ng m\u00e1y ch\u1ee7 trung t\u00e2m d\u1eef li\u1ec7u.<\/p><\/li>\n\n\n\n

  4. Hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady tr\u00ean s\u1ee3i quang \u0111\u01a1n mode (SMF):<\/strong> \ud83d\ude80 Vi\u1ec7c s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u01a1n mode \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eabn xa h\u01a1n<\/strong> (l\u00ean t\u1edbi 500 m, th\u01b0\u1eddng \u0111\u1ea1t 2 km v\u1edbi c\u00e1c module ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0 c\u1ee7a LINK-PP) v\u00e0 hi\u1ec7u n\u0103ng v\u01b0\u1ee3t tr\u1ed9i<\/strong> so v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p s\u1ee3i quang \u0111a mode (nh\u01b0 SR4) tr\u00ean c\u00f9ng kho\u1ea3ng c\u00e1ch.<\/p><\/li>\n<\/ol>\n\n\n\n

    \ud83d\udcdd C\u00e1c \u1ee9ng d\u1ee5ng l\u00fd t\u01b0\u1edfng cho module 100G PSM4<\/strong><\/h2>\n\n\n\n