{"id":3245,"date":"2025-04-02T07:28:31","date_gmt":"2025-04-02T07:28:31","guid":{"rendered":"https:\/\/commmesh.com\/?p=3245"},"modified":"2025-04-03T06:42:31","modified_gmt":"2025-04-03T06:42:31","slug":"what-is-fiber-patch-cord","status":"publish","type":"post","link":"https:\/\/commmesh.com\/vi\/what-is-fiber-patch-cord\/","title":{"rendered":"D\u00e2y nh\u1ea3y quang l\u00e0 g\u00ec: H\u01b0\u1edbng d\u1eabn cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"

B\u1ea1n \u0111\u00e3 bao gi\u1edd g\u1eb7p ph\u1ea3i thu\u1eadt ng\u1eef n\u00e0y ch\u01b0a? d\u00e2y v\u00e1 s\u1ee3i<\/em> v\u00e0 t\u1ef1 h\u1ecfi, d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> t\u1ea5t c\u1ea3 v\u1ec1? Nh\u1eefng s\u1ee3i c\u00e1p nh\u1ecf n\u00e0y c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n, nh\u01b0ng ch\u00fang l\u00e0 nh\u1eefng anh h\u00f9ng th\u1ea7m l\u1eb7ng c\u1ee7a m\u1ea1ng l\u01b0\u1edbi hi\u1ec7n \u0111\u1ea1i, k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i tr\u01a1n tru. Cho d\u00f9 b\u1ea1n \u0111ang thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng Wi-Fi t\u1ea1i nh\u00e0, qu\u1ea3n l\u00fd m\u1ea1ng v\u0103n ph\u00f2ng hay l\u00e0m vi\u1ec7c trong m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u l\u1edbn, h\u00e3y bi\u1ebft d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n \u0111\u01b0a ra nh\u1eefng l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho k\u1ebft n\u1ed1i nhanh ch\u00f3ng, \u0111\u00e1ng tin c\u1eady. Trong h\u01b0\u1edbng d\u1eabn d\u00e0nh cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u n\u00e0y, ch\u00fang t\u00f4i s\u1ebd kh\u00e1m ph\u00e1 d\u00e2y v\u00e1 s\u1ee3i quang<\/em> t\u1eeb m\u1ecdi g\u00f3c \u0111\u1ed9\u2014b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c lo\u1ea1i, t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn chi ph\u00ed, l\u1ee3i \u00edch, v.v. Ch\u00fang t\u00f4i s\u1ebd tr\u00ecnh b\u00e0y \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u t\u1ea1i sao nh\u1eefng lo\u1ea1i c\u00e1p n\u00e0y l\u1ea1i thi\u1ebft y\u1ebfu trong th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7 ng\u00e0y nay. V\u1edbi c\u00e1c t\u00f9y ch\u1ecdn ch\u1ea5t l\u01b0\u1ee3ng cao t\u1eeb CommMesh, h\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 b\u00ed \u1ea9n c\u1ee7a s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em> v\u00e0 kh\u00e1m ph\u00e1 xem ch\u00fang c\u00f3 th\u1ec3 gi\u00fap \u00edch cho b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o!<\/p>\n\n\n\n\n\n

D\u00e2y c\u00e1p quang l\u00e0 g\u00ec v\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a d\u00e2y v\u00e1 s\u1ee3i quang<\/h3>\n\n\n\n

V\u00ec th\u1ebf, d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> ch\u00ednh x\u00e1c? M\u1ed8T d\u00e2y v\u00e1 s\u1ee3i<\/em>\u2014c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1p v\u00e1 s\u1ee3i quang\u2014l\u00e0 m\u1ed9t lo\u1ea1i c\u00e1p ng\u1eafn, linh ho\u1ea1t, th\u01b0\u1eddng d\u00e0i t\u1eeb 1 \u0111\u1ebfn 10 m\u00e9t, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i hai thi\u1ebft b\u1ecb trong m\u1ea1ng.<\/strong> H\u00e3y ngh\u0129 v\u1ec1 n\u00f3 nh\u01b0 m\u1ed9t c\u00e2y c\u1ea7u cho ph\u00e9p d\u1eef li\u1ec7u ch\u1ea3y gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb, nh\u01b0 li\u00ean k\u1ebft b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch, m\u00e1y ch\u1ee7 v\u1edbi thi\u1ebft b\u1ecb l\u01b0u tr\u1eef ho\u1eb7c th\u1eadm ch\u00ed k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb vi\u1ec5n th\u00f4ng trong m\u1ed9t v\u0103n ph\u00f2ng trung t\u00e2m. V\u1ec1 b\u1ea3n ch\u1ea5t, m\u1ed9t d\u00e2y v\u00e1 s\u1ee3i<\/em> \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng s\u1ee3i quang<\/em> c\u00e1c s\u1ee3i quang\u2014b\u1eb1ng th\u1ee7y tinh ho\u1eb7c nh\u1ef1a\u2014truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng, cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 c\u1ef1c nhanh\u2014v\u00ed d\u1ee5: 10 Gbps tr\u00ean kho\u1ea3ng c\u00e1ch 1 m\u00e9t v\u1edbi m\u1ee9c suy gi\u1ea3m t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u l\u00e0 0,3 dB.<\/p>\n\n\n\n

\"D\u00e2y<\/a>
D\u00e2y nh\u1ea3y quang<\/figcaption><\/figure>\n\n\n\n

N\u00f3 ho\u1ea1t \u0111\u1ed9ng th\u1ebf n\u00e0o?<\/h3>\n\n\n\n

M\u1ed7i d\u00e2y v\u00e1 s\u1ee3i<\/em> c\u00f3 c\u00e1c \u0111\u1ea7u n\u1ed1i \u1edf c\u1ea3 hai \u0111\u1ea7u\u2014c\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m \u0110\u1ea7u n\u1ed1i LC<\/a>, \u0110\u1ea7u n\u1ed1i SC<\/a>, ho\u1eb7c \u0110\u1ea7u n\u1ed1i ST<\/a>\u2014c\u1eafm v\u00e0o c\u00e1c c\u1ed5ng c\u1ee7a thi\u1ebft b\u1ecb. B\u00ean trong c\u00e1p, c\u00f3 m\u1ed9t l\u00f5i\u2014v\u00ed d\u1ee5, m\u1ed9t s\u1ee3i th\u1ee7y tinh 9 micron cho ch\u1ebf \u0111\u1ed9 \u0111\u01a1n\u2014\u0111\u01b0\u1ee3c bao quanh b\u1edfi m\u1ed9t l\u1edbp v\u1ecf b\u1ecdc gi\u1eef \u00e1nh s\u00e1ng b\u00ean trong th\u00f4ng qua m\u1ed9t qu\u00e1 tr\u00ecnh g\u1ecdi l\u00e0 ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra v\u00ec l\u1edbp v\u1ecf b\u1ecdc c\u00f3 chi\u1ebft su\u1ea5t th\u1ea5p h\u01a1n\u2014v\u00ed d\u1ee5, 1,46 so v\u1edbi 1,48 c\u1ee7a l\u00f5i\u2014khi\u1ebfn \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i l\u00f5i \u1edf c\u00e1c g\u00f3c tr\u00ean 42\u00b0, ngay c\u1ea3 khi u\u1ed1n cong nh\u1eb9.<\/p>\n\n\n\n

Qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u<\/h3>\n\n\n\n

Khi b\u1ea1n g\u1eedi d\u1eef li\u1ec7u\u2014nh\u01b0 email ho\u1eb7c lu\u1ed3ng video\u2014m\u1ed9t tia laser ho\u1eb7c \u0111\u00e8n LED trong thi\u1ebft b\u1ecb g\u1eedi s\u1ebd chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u th\u00e0nh c\u00e1c xung \u00e1nh s\u00e1ng\u2014v\u00ed d\u1ee5, \u1edf b\u01b0\u1edbc s\u00f3ng 1310 nm. C\u00e1c xung \u0111\u00f3 truy\u1ec1n qua d\u00e2y v\u00e1 s\u1ee3i<\/em> \u0111\u1ebfn thi\u1ebft b\u1ecb nh\u1eadn, n\u01a1i m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00e1c\u2014nh\u01b0 b\u1ed9 thu ph\u00e1t quang\u2014chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng tr\u1edf l\u1ea1i th\u00e0nh d\u1eef li\u1ec7u\u2014v\u00ed d\u1ee5, cung c\u1ea5p 1 Gbps cho m\u1ea1ng c\u1ee7a b\u1ea1n. H\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean \u00e1nh s\u00e1ng n\u00e0y l\u00e0 th\u1ee9 t\u1ea1o n\u00ean s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em> r\u1ea5t hi\u1ec7u qu\u1ea3\u2014v\u00ed d\u1ee5, m\u1ed9t d\u00e2y c\u00e1p d\u00e0i 3m c\u00f3 th\u1ec3 duy tr\u00ec t\u1ed1c \u0111\u1ed9 10 Gbps v\u1edbi m\u1ee9c suy hao ch\u1ec9 0,3 dB\u2014so v\u1edbi t\u1ed1c \u0111\u1ed9 1 Gbps c\u1ee7a d\u00e2y \u0111\u1ed3ng tr\u00ean 100m v\u1edbi m\u1ee9c suy hao 10 dB.<\/p>\n\n\n\n

T\u1ea1i sao n\u00f3 kh\u00f4ng b\u1ecb nhi\u1ec5u<\/h3>\n\n\n\n

\u0110i\u1ec1u g\u00ec l\u00e0m cho d\u00e2y v\u00e1 s\u1ee3i quang<\/em> \u0111\u1eb7c bi\u1ec7t l\u00e0 ch\u00fang s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng thay v\u00ec \u0111i\u1ec7n, c\u00f3 ngh\u0129a l\u00e0 ch\u00fang kh\u00f4ng b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb\u2014v\u00ed d\u1ee5, kh\u00f4ng b\u1ecb nhi\u1ec5u t\u00edn hi\u1ec7u g\u1ea7n c\u00e1p \u0111i\u1ec7n, kh\u00f4ng gi\u1ed1ng nh\u01b0 d\u00e2y \u0111\u1ed3ng c\u00f3 th\u1ec3 m\u1ea5t 10% t\u00edn hi\u1ec7u trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec5u. \u0110\u1ed9 tin c\u1eady n\u00e0y l\u00e0 l\u00fd do t\u1ea1i sao d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> l\u00e0 m\u1ed9t c\u00e2u h\u1ecfi quan tr\u1ecdng \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai mu\u1ed1n x\u00e2y d\u1ef1ng ho\u1eb7c duy tr\u00ec m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao, cho d\u00f9 \u0111\u00f3 l\u00e0 thi\u1ebft l\u1eadp cho ng\u00f4i nh\u00e0 nh\u1ecf, v\u0103n ph\u00f2ng c\u00f4ng ty hay h\u1ec7 th\u1ed1ng doanh nghi\u1ec7p quy m\u00f4 l\u1edbn. T\u1eeb vi\u1ec7c k\u1ebft n\u1ed1i b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn gia \u0111\u00ecnh \u0111\u1ebfn li\u00ean k\u1ebft m\u00e1y ch\u1ee7 trong trung t\u00e2m d\u1eef li\u1ec7u, d\u00e2y v\u00e1 s\u1ee3i quang<\/em> \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn \u0111\u00fang n\u01a1i c\u1ea7n \u0111\u1ebfn\u2014nhanh ch\u00f3ng v\u00e0 kh\u00f4ng g\u1eb7p tr\u1ee5c tr\u1eb7c.<\/p>\n\n\n\n

C\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i quang: Kh\u00e1m ph\u00e1 t\u1ea5t c\u1ea3 c\u00e1c t\u00f9y ch\u1ecdn c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n

H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 nh\u1eefng \u0111i\u1ec1u kh\u00e1c bi\u1ec7t c\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/em>\u2014v\u00ec c\u00f3 nhi\u1ec1u lo\u1ea1i \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 vi\u1ec7c ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u m\u1ea1ng c\u1ee7a b\u1ea1n. D\u1ef1a tr\u00ean ph\u00e2n t\u00edch chi ti\u1ebft t\u1eeb FS.com, c\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/em> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo ch\u1ebf \u0111\u1ed9 s\u1ee3i, ch\u1ebf \u0111\u1ed9 truy\u1ec1n, lo\u1ea1i v\u1ecf b\u1ecdc, lo\u1ea1i \u0111\u1ea7u n\u1ed1i, lo\u1ea1i \u0111\u00e1nh b\u00f3ng v\u00e0 \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

\"c\u00e1c<\/a>
c\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/figcaption><\/figure>\n\n\n\n

Ch\u1ebf \u0111\u1ed9 s\u1ee3i quang: Ch\u1ebf \u0111\u1ed9 \u0111\u01a1n so v\u1edbi ch\u1ebf \u0111\u1ed9 \u0111a<\/a><\/h3>\n\n\n\n

D\u00e2y nh\u1ea3y quang \u0111\u01a1n mode<\/h4>\n\n\n\n

Ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1eddng d\u00e0i\u2014v\u00ed d\u1ee5, l\u00ean \u0111\u1ebfn 10 km ho\u1eb7c h\u01a1n\u2014s\u1eed d\u1ee5ng l\u00f5i 9 micron h\u1eb9p ch\u1ec9 cho ph\u00e9p m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng (ho\u1eb7c ch\u1ebf \u0111\u1ed9) truy\u1ec1n \u0111i. Ch\u00fang c\u00f3 \u0111\u1ed9 m\u1ea5t t\u00edn hi\u1ec7u r\u1ea5t th\u1ea5p\u2014v\u00ed d\u1ee5, 0,2 dB\/km\u2014l\u00e0m cho ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 m\u1ea1ng vi\u1ec5n th\u00f4ng k\u1ebft n\u1ed1i c\u00e1c t\u00f2a nh\u00e0 trong th\u00e0nh ph\u1ed1\u2014v\u00ed d\u1ee5, \u0111\u01b0\u1eddng li\u00ean k\u1ebft 5 km gi\u1eefa hai v\u0103n ph\u00f2ng duy tr\u00ec 1 Gbps v\u1edbi s\u1ef1 suy gi\u1ea3m t\u1ed1i thi\u1ec3u. D\u00e2y \u0111\u01a1n mode th\u01b0\u1eddng s\u1eed d\u1ee5ng v\u1ecf b\u1ecdc m\u00e0u v\u00e0ng \u0111\u1ec3 d\u1ec5 nh\u1eadn d\u1ea1ng v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi c\u00e1c \u0111\u1ea7u n\u1ed1i nh\u01b0 LC ho\u1eb7c SC.<\/p>\n\n\n\n

D\u00e2y nh\u1ea3y quang \u0111a ch\u1ebf \u0111\u1ed9<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y t\u1ed1t h\u01a1n cho kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n\u2014v\u00ed d\u1ee5, l\u00ean \u0111\u1ebfn 500m\u2014s\u1eed d\u1ee5ng l\u00f5i r\u1ed9ng h\u01a1n, th\u01b0\u1eddng l\u00e0 50 ho\u1eb7c 62,5 micron, cho ph\u00e9p nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng (ch\u1ebf \u0111\u1ed9) truy\u1ec1n \u0111i. Ch\u00fang c\u00f3 \u0111\u1ed9 m\u1ea5t t\u00edn hi\u1ec7u cao h\u01a1n\u2014v\u00ed d\u1ee5, 3 dB\/km\u2014nh\u01b0ng ho\u00e0n h\u1ea3o cho c\u00e1c thi\u1ebft l\u1eadp t\u1ed1c \u0111\u1ed9 cao, t\u1ea7m ng\u1eafn nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u\u2014v\u00ed d\u1ee5, \u0111\u01b0\u1eddng li\u00ean k\u1ebft 300m ch\u1ea1y 10 Gbps gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7. D\u00e2y \u0111a ch\u1ebf \u0111\u1ed9 c\u00f3 c\u00e1c c\u1ea5p \u0111\u1ed9 nh\u01b0 OM1, OM2, OM3, OM4 v\u00e0 OM5<\/a>\u2014v\u00ed d\u1ee5, OM4 h\u1ed7 tr\u1ee3 40 Gbps tr\u00ean 150m\u2014v\u00e0 th\u01b0\u1eddng c\u00f3 l\u1edbp v\u1ecf m\u00e0u xanh n\u01b0\u1edbc bi\u1ec3n, cam ho\u1eb7c xanh l\u00e1 c\u00e2y chanh (\u0111\u1ed1i v\u1edbi OM5).<\/p>\n\n\n\n

Ch\u1ebf \u0111\u1ed9 truy\u1ec1n: Simplex so v\u1edbi Duplex<\/a><\/h3>\n\n\n\n

D\u00e2y nh\u1ea3y quang Simplex<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y ch\u1ec9 c\u00f3 m\u1ed9t s\u1ee3i quang, ngh\u0129a l\u00e0 ch\u00fang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u m\u1ed9t chi\u1ec1u\u2014v\u00ed d\u1ee5, g\u1eedi d\u1eef li\u1ec7u t\u1eeb b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch. Ch\u00fang \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed\u2014v\u00ed d\u1ee5, d\u00e2y c\u00e1p \u0111\u01a1n SC-SC 1m c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 $5\u2014v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft l\u1eadp kh\u00f4ng c\u1ea7n giao ti\u1ebfp hai chi\u1ec1u, nh\u01b0 m\u1ed9t s\u1ed1 h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t ho\u1eb7c \u1ee9ng d\u1ee5ng ph\u00e1t s\u00f3ng.<\/p>\n\n\n\n

D\u00e2y nh\u1ea3y s\u1ee3i quang Duplex<\/h4>\n\n\n\n

Ch\u00fang c\u00f3 hai s\u1ee3i quang\u2014m\u1ed9t \u0111\u1ec3 g\u1eedi v\u00e0 m\u1ed9t \u0111\u1ec3 nh\u1eadn\u2014l\u00e0m cho ch\u00fang l\u00fd t\u01b0\u1edfng cho giao ti\u1ebfp hai chi\u1ec1u. Ch\u00fang l\u00e0 lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t trong m\u1ea1ng\u2014v\u00ed d\u1ee5, d\u00e2y song c\u00f4ng LC-LC 3m cho 1 Gbps gi\u1eefa m\u1ed9t b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 m\u1ed9t m\u00e1y ch\u1ee7\u2014v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft l\u1eadp nh\u01b0 m\u1ea1ng LAN v\u0103n ph\u00f2ng ho\u1eb7c gia \u0111\u00ecnh FTTH<\/a> k\u1ebft n\u1ed1i. Ch\u00fang \u0111\u1eaft h\u01a1n m\u1ed9t ch\u00fat\u2014v\u00ed d\u1ee5, $10 cho d\u00e2y d\u00e0i 3m\u2014nh\u01b0ng \u0111a n\u0103ng cho h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

Lo\u1ea1i \u00e1o kho\u00e1c: PVC, LSZH, OFNP, B\u1ecdc th\u00e9p<\/h3>\n\n\n\n

D\u00e2y v\u00e1 PVC (Polyvinyl Clorua)<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y c\u00f3 l\u1edbp v\u1ecf nh\u1ef1a ti\u00eau chu\u1ea9n\u2014v\u00ed d\u1ee5, l\u1edbp ngo\u00e0i d\u00e0y 3mm\u2014mang l\u1ea1i \u0111\u1ed9 linh ho\u1ea1t v\u00e0 \u0111\u1ed9 b\u1ec1n t\u1ed1t\u2014v\u00ed d\u1ee5, \u0111\u1ec3 s\u1eed d\u1ee5ng trong nh\u00e0 \u1edf v\u0103n ph\u00f2ng. Ch\u00fang c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng\u2014v\u00ed d\u1ee5, $8 cho d\u00e2y d\u00e0i 2m\u2014nh\u01b0ng kh\u00f4ng ch\u1ed1ng ch\u00e1y, v\u00ec v\u1eady ch\u00fang ph\u00f9 h\u1ee3p nh\u1ea5t \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 r\u1ee7i ro th\u1ea5p\u2014v\u00ed d\u1ee5, m\u1ea1ng gia \u0111\u00ecnh.<\/p>\n\n\n\n

D\u00e2y v\u00e1 LSZH (\u00edt kh\u00f3i, kh\u00f4ng halogen)<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y s\u1eed d\u1ee5ng l\u1edbp v\u1ecf ph\u00e1t ra \u00edt kh\u00f3i v\u00e0 kh\u00f4ng c\u00f3 halogen \u0111\u1ed9c h\u1ea1i khi \u0111\u1ed1t ch\u00e1y\u2014v\u00ed d\u1ee5, trong h\u1ecfa ho\u1ea1n\u2014l\u00e0m cho ch\u00fang an to\u00e0n h\u01a1n cho kh\u00f4ng gian h\u1ea1n ch\u1ebf\u2014v\u00ed d\u1ee5, d\u00e2y LSZH LC-LC d\u00e0i 5m trong b\u1ec7nh vi\u1ec7n. Ch\u00fang \u0111\u1eaft h\u01a1n m\u1ed9t ch\u00fat\u2014v\u00ed d\u1ee5, $12 cho 5m\u2014nh\u01b0ng l\u00fd t\u01b0\u1edfng cho c\u00e1c t\u00f2a nh\u00e0 c\u00f4ng c\u1ed9ng\u2014v\u00ed d\u1ee5, tr\u01b0\u1eddng h\u1ecdc ho\u1eb7c v\u0103n ph\u00f2ng.<\/p>\n\n\n\n

OFNP<\/a> (Plenum s\u1ee3i quang kh\u00f4ng d\u1eabn \u0111i\u1ec7n) D\u00e2y v\u00e1<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y c\u00f3 l\u1edbp v\u1ecf \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 plenum\u2014v\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi \u1ed1ng d\u1eabn kh\u00ed\u2014\u0111\u00e1p \u1ee9ng c\u00e1c quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t v\u1ec1 an to\u00e0n ph\u00f2ng ch\u00e1y\u2014v\u00ed d\u1ee5, trong c\u00e1c t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i. Ch\u00fang \u0111\u1eaft h\u01a1n\u2014v\u00ed d\u1ee5, $15 cho d\u00e2y d\u00e0i 5m\u2014nh\u01b0ng c\u1ea7n thi\u1ebft cho kh\u00f4ng gian plenum\u2014v\u00ed d\u1ee5, d\u00e2y OFNP d\u00e0i 3m trong tr\u1ea7n nh\u00e0 c\u1ee7a c\u00f4ng ty.<\/p>\n\n\n\n

D\u00e2y nh\u1ea3y quang b\u1ecdc th\u00e9p<\/h4>\n\n\n\n

Ch\u00fang \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ch\u1eafc ch\u1eafn, c\u00f3 th\u00eam m\u1ed9t l\u1edbp\u2014v\u00ed d\u1ee5, m\u1ed9t l\u1edbp v\u1ecf th\u00e9p\u2014\u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c h\u01b0 h\u1ecfng nh\u01b0 b\u1ecb \u0111\u00e8 b\u1eb9p ho\u1eb7c b\u1ecb g\u1eb7m nh\u1ea5m. Ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC b\u1ecdc th\u00e9p d\u00e0i 5m trong nh\u00e0 m\u00e1y\u2014n\u01a1i m\u00e0 d\u00e2y th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng. Ch\u00fang \u0111\u1eaft h\u01a1n\u2014v\u00ed d\u1ee5, $25 cho d\u00e2y d\u00e0i 5m\u2014nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n\u2014v\u00ed d\u1ee5, ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t 2000N.<\/p>\n\n\n\n

\"D\u00e2y<\/a>
D\u00e2y nh\u1ea3y quang 2<\/figcaption><\/figure>\n\n\n\n

Lo\u1ea1i \u0111\u1ea7u n\u1ed1i: LC, SC, ST, FC, MTP\/MPO<\/h3>\n\n\n\n

D\u00e2y n\u1ed1i LC<\/h4>\n\n\n\n

Ch\u00fang c\u00f3 \u0111\u1ea7u n\u1ed1i nh\u1ecf, d\u1ea1ng ch\u1ed1t\u2014v\u00ed d\u1ee5, \u1ed1ng n\u1ed1i 1,25mm\u2014l\u00e0m cho ch\u00fang nh\u1ecf g\u1ecdn\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC d\u00e0i 2m cho 10 Gbps trong trung t\u00e2m d\u1eef li\u1ec7u. Ch\u00fang ph\u1ed5 bi\u1ebfn trong c\u00e1c thi\u1ebft l\u1eadp m\u1eadt \u0111\u1ed9 cao\u2014v\u00ed d\u1ee5, gi\u00e1 \u0111\u1ee1 m\u00e1y ch\u1ee7\u2014do k\u00edch th\u01b0\u1edbc c\u1ee7a ch\u00fang\u2014v\u00ed d\u1ee5, l\u1eafp 48 c\u1ed5ng trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n 1U.<\/p>\n\n\n\n

D\u00e2y n\u1ed1i SC<\/h4>\n\n\n\n

Ch\u00fang s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i \u0111\u1ea9y-k\u00e9o\u2014v\u00ed d\u1ee5, \u1ed1ng n\u1ed1i 2,5 mm\u2014mang l\u1ea1i \u0111\u1ed9 b\u1ec1n\u2014v\u00ed d\u1ee5, d\u00e2y SC-SC d\u00e0i 3m cho vi\u1ec5n th\u00f4ng. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft l\u1eadp c\u0169\u2014v\u00ed d\u1ee5, v\u0103n ph\u00f2ng trung t\u00e2m\u2014v\u00ec ch\u00fang d\u1ec5 l\u1eafp \u0111\u1eb7t\u2014v\u00ed d\u1ee5, suy hao ch\u00e8n 0,2 dB.<\/p>\n\n\n\n

D\u00e2y n\u1ed1i ST<\/h4>\n\n\n\n

Ch\u00fang c\u00f3 \u0111\u1ea7u n\u1ed1i ki\u1ec3u l\u01b0\u1ee1i l\u00ea\u2014v\u00ed d\u1ee5, d\u00e2y ST-ST d\u00e0i 2m cho 1 Gbps trong m\u1ea1ng l\u01b0\u1edbi tr\u01b0\u1eddng h\u1ecdc. Ng\u00e0y nay, ch\u00fang \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n nh\u01b0ng v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng c\u0169\u2014v\u00ed d\u1ee5, tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc\u2014cung c\u1ea5p k\u1ebft n\u1ed1i an to\u00e0n\u2014v\u00ed d\u1ee5, m\u1ea5t m\u00e1t 0,3 dB.<\/p>\n\n\n\n

D\u00e2y n\u1ed1i FC<\/h4>\n\n\n\n

Ch\u00fang s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf v\u1eb7n v\u00edt\u2014v\u00ed d\u1ee5, d\u00e2y FC-FC d\u00e0i 5m cho thi\u1ebft b\u1ecb th\u1eed nghi\u1ec7m\u2014mang l\u1ea1i m\u1ee9c m\u1ea5t t\u00edn hi\u1ec7u th\u1ea5p\u2014v\u00ed d\u1ee5, 0,1 dB\u2014do v\u1eeba kh\u00edt. Ch\u00fang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng rung \u0111\u1ed9ng cao\u2014v\u00ed d\u1ee5, m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

MTP\/MPO<\/a> D\u00e2y n\u1ed1i<\/h4>\n\n\n\n

\u0110\u00e2y l\u00e0 c\u00e1c \u0111\u1ea7u n\u1ed1i nhi\u1ec1u s\u1ee3i quang\u2014v\u00ed d\u1ee5, 12 ho\u1eb7c 24 s\u1ee3i quang trong m\u1ed9t\u2014\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao\u2014v\u00ed d\u1ee5, d\u00e2y MPO-MPO 1m cho 100 Gbps trong trung t\u00e2m d\u1eef li\u1ec7u. Ch\u00fang l\u00fd t\u01b0\u1edfng cho c\u00e1c thi\u1ebft l\u1eadp d\u00e0y \u0111\u1eb7c\u2014v\u00ed d\u1ee5, 144 s\u1ee3i quang trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n 1U\u2014nh\u01b0ng gi\u00e1 th\u00e0nh cao h\u01a1n\u2014v\u00ed d\u1ee5, $50 cho 1m.<\/p>\n\n\n\n

Lo\u1ea1i \u0111\u00e1nh b\u00f3ng: UPC so v\u1edbi APC<\/h3>\n\n\n\n

D\u00e2y v\u00e1 UPC (Ti\u1ebfp x\u00fac v\u1eadt l\u00fd c\u1ef1c cao)<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y c\u00f3 \u0111\u1ea7u n\u1ed1i h\u01a1i cong\u2014v\u00ed d\u1ee5, d\u00e2y LC-UPC d\u00e0i 3m\u2014c\u00f3 \u0111\u1ed9 suy hao ph\u1ea3n h\u1ed3i th\u1ea5p\u2014v\u00ed d\u1ee5, -50 dB\u2014ph\u00f9 h\u1ee3p v\u1edbi h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng\u2014v\u00ed d\u1ee5, m\u1ea1ng LAN v\u0103n ph\u00f2ng 1 Gbps. Ch\u00fang l\u00e0 lo\u1ea1i chu\u1ea9n v\u00e0 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng\u2014v\u00ed d\u1ee5, $10 cho 3m.<\/p>\n\n\n\n

D\u00e2y v\u00e1 APC (Ti\u1ebfp x\u00fac v\u1eadt l\u00fd g\u00f3c c\u1ea1nh)<\/h4>\n\n\n\n

Nh\u1eefng th\u1ee9 n\u00e0y c\u00f3 m\u1ed9t \u0111\u1ea7u g\u00f3c 8 \u0111\u1ed9\u2014v\u00ed d\u1ee5, 5m SC-APC<\/a> d\u00e2y\u2014gi\u1ea3m ph\u1ea3n x\u1ea1 nhi\u1ec1u h\u01a1n n\u1eefa\u2014v\u00ed d\u1ee5, suy hao ph\u1ea3n h\u1ed3i -60 dB\u2014l\u00fd t\u01b0\u1edfng cho vi\u1ec5n th\u00f4ng\u2014v\u00ed d\u1ee5, li\u00ean k\u1ebft FTTH 10 km. Ch\u00fang \u0111\u1eaft h\u01a1n m\u1ed9t ch\u00fat\u2014v\u00ed d\u1ee5, $12 cho 5m\u2014nh\u01b0ng \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

\"C\u00e1p<\/a>
C\u00e1p v\u00e1 sc apc sang sc apc<\/figcaption><\/figure>\n\n\n\n

\u1ee8ng d\u1ee5ng: Ti\u00eau chu\u1ea9n, Kh\u00f4ng u\u1ed1n cong, Pigtail<\/h3>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang ti\u00eau chu\u1ea9n<\/h4>\n\n\n\n

\u0110\u00e2y l\u00e0 nh\u1eefng lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t\u2014v\u00ed d\u1ee5, m\u1ed9t LC-LC duplex 2m cho 1 Gbps trong v\u0103n ph\u00f2ng\u2014cung c\u1ea5p b\u00e1n k\u00ednh u\u1ed1n cong l\u00e0 30mm\u2014v\u00ed d\u1ee5, m\u1ea5t m\u00e1t 0,3 dB tr\u00ean 2m. Ch\u00fang linh ho\u1ea1t\u2014v\u00ed d\u1ee5, $8 cho 2m\u2014cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung.<\/p>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang kh\u00f4ng nh\u1ea1y u\u1ed1n cong<\/h4>\n\n\n\n

Nh\u1eefng lo\u1ea1i n\u00e0y x\u1eed l\u00fd \u0111\u01b0\u1ee3c c\u00e1c kh\u00fac cua h\u1eb9p h\u01a1n\u2014v\u00ed d\u1ee5, b\u00e1n k\u00ednh 7,5mm\u2014m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t t\u00edn hi\u1ec7u\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC kh\u00f4ng nh\u1ea1y v\u1edbi kh\u00fac cua d\u00e0i 3m cho 10 Gbps trong gi\u00e1 \u0111\u1ee1 h\u1eb9p\u2014ch\u1ec9 m\u1ea5t 0,1 dB. Ch\u00fang r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi kh\u00f4ng gian ch\u1eadt h\u1eb9p\u2014v\u00ed d\u1ee5, $15 cho 3m.<\/p>\n\n\n\n

D\u00e2y nh\u1ea3y s\u1ee3i Pigtail<\/a><\/h4>\n\n\n\n

Nh\u1eefng th\u1ee9 n\u00e0y c\u00f3 m\u1ed9t \u0111\u1ea7u n\u1ed1i \u1edf m\u1ed9t \u0111\u1ea7u v\u00e0 s\u1ee3i quang tr\u1ea7n \u1edf \u0111\u1ea7u kia\u2014v\u00ed d\u1ee5, m\u1ed9t d\u00e2y n\u1ed1i LC d\u00e0i 2m \u0111\u1ec3 n\u1ed1i\u2014\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u1ed1i m\u1ed9t m\u1ed1i n\u1ed1i c\u00e1p quang<\/a><\/em>\u2014v\u00ed d\u1ee5, trong t\u1ee7 vi\u1ec5n th\u00f4ng. Ch\u00fang c\u00f3 gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng\u2014v\u00ed d\u1ee5, $8\u2014v\u00e0 c\u1ea7n thi\u1ebft cho c\u00e1c tuy\u1ebfn c\u00e1p quang d\u00e0i\u2014v\u00ed d\u1ee5, \u0111\u01b0\u1eddng tr\u1ee5c 10 km.<\/p>\n\n\n\n

Nh\u1eefng c\u00e1i n\u00e0y c\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/em> cung c\u1ea5p nhi\u1ec1u l\u1ef1a ch\u1ecdn\u2014cho d\u00f9 b\u1ea1n c\u1ea7n d\u00e2y c\u00e1p ch\u1ebf \u0111\u1ed9 \u0111\u01a1n cho li\u00ean k\u1ebft vi\u1ec5n th\u00f4ng \u0111\u01b0\u1eddng d\u00e0i, MPO \u0111a ch\u1ebf \u0111\u1ed9 cho trung t\u00e2m d\u1eef li\u1ec7u hay d\u00e2y c\u00e1p LSZH b\u1ecdc th\u00e9p cho b\u1ec7nh vi\u1ec7n, h\u00e3y hi\u1ec3u d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> gi\u00fap b\u1ea1n ch\u1ecdn \u0111\u00fang gi\u1ea3i ph\u00e1p\u2014CommMesh c\u00f3 t\u1ea5t c\u1ea3.<\/p>\n\n\n\n

D\u00e2y c\u00e1p quang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2>\n\n\n\n

H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 D\u00e2y v\u00e1 s\u1ee3i quang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec<\/em>\u2014b\u1edfi v\u00ec s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em> v\u00f4 c\u00f9ng \u0111a d\u1ea1ng, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p trong m\u1ecdi lo\u1ea1i b\u1ed1i c\u1ea3nh. V\u1ec1 b\u1ea3n ch\u1ea5t, d\u00e2y v\u00e1 s\u1ee3i quang<\/em> l\u00e0 v\u1ec1 vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u nhanh ch\u00f3ng, \u0111\u00e1ng tin c\u1eady, nh\u01b0ng \u1ee9ng d\u1ee5ng c\u1ee7a ch\u00fang tr\u1ea3i r\u1ed9ng tr\u00ean nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

M\u1ea1ng gia \u0111\u00ecnh: K\u1ebft n\u1ed1i FTTH<\/h3>\n\n\n\n

Trong b\u1ed1i c\u1ea3nh gia \u0111\u00ecnh, s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em> th\u01b0\u1eddng \u0111\u01b0\u1ee3c g\u1eafn v\u1edbi FTTH (S\u1ee3i quang \u0111\u1ebfn t\u1eadn nh\u00e0<\/a>) thi\u1ebft l\u1eadp. D\u00e2y song c\u00f4ng LC-LC 1m c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i ONT (Thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i m\u1ea1ng quang) c\u1ee7a ISP v\u1edbi b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n, cung c\u1ea5p 1 Gbps cho Wi-Fi li\u1ec1n m\u1ea1ch\u2014v\u00ed d\u1ee5: ph\u00e1t tr\u1ef1c tuy\u1ebfn phim 4K tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ec7m. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 cao s\u1ee3i quang<\/em> k\u1ebft n\u1ed1i t\u1eeb ISP c\u1ee7a b\u1ea1n s\u1ebd truy\u1ec1n \u0111\u1ebfn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n\u2014v\u00ed d\u1ee5, duy tr\u00ec th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng 99.99% ngay c\u1ea3 khi s\u1eed d\u1ee5ng nhi\u1ec1u.<\/p>\n\n\n\n

M\u00f4i tr\u01b0\u1eddng v\u0103n ph\u00f2ng: X\u00e2y d\u1ef1ng m\u1ea1ng LAN<\/h3>\n\n\n\n

Trong m\u00f4i tr\u01b0\u1eddng v\u0103n ph\u00f2ng, d\u00e2y v\u00e1 s\u1ee3i quang<\/em> l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ea1ng c\u1ee5c b\u1ed9 (LAN). M\u1ed9t d\u00e2y SC-SC song c\u00f4ng 3m c\u00f3 th\u1ec3 li\u00ean k\u1ebft hai c\u00f4ng t\u1eafc \u1edf c\u00e1c t\u1ea7ng kh\u00e1c nhau\u2014v\u00ed d\u1ee5, cung c\u1ea5p 10 Gbps \u0111\u1ec3 h\u1ed7 tr\u1ee3 50 nh\u00e2n vi\u00ean l\u00e0m vi\u1ec7c tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00e1m m\u00e2y, cu\u1ed9c g\u1ecdi video v\u00e0 truy\u1ec1n t\u1ec7p. Thi\u1ebft l\u1eadp n\u00e0y \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u di chuy\u1ec3n nhanh\u2014v\u00ed d\u1ee5, truy\u1ec1n t\u1ec7p 1 GB trong v\u00f2ng ch\u01b0a \u0111\u1ea7y 1 gi\u00e2y\u2014m\u00e0 kh\u00f4ng b\u1ecb nhi\u1ec5u\u2014v\u00ed d\u1ee5, t\u00edn hi\u1ec7u 10% b\u1ecb m\u1ea5t g\u1ea7n thi\u1ebft b\u1ecb \u0111i\u1ec7n.<\/p>\n\n\n\n

Trung t\u00e2m d\u1eef li\u1ec7u: Li\u00ean k\u1ebft m\u00e1y ch\u1ee7 t\u1ed1c \u0111\u1ed9 cao<\/h3>\n\n\n\n

Trung t\u00e2m d\u1eef li\u1ec7u l\u00e0 m\u1ed9t khu v\u1ef1c quan tr\u1ecdng cho s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em>. D\u00e2y c\u00e1p OM4 LC-LC \u0111a ch\u1ebf \u0111\u1ed9 d\u00e0i 5m c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 v\u1edbi c\u00e1c \u0111\u01a1n v\u1ecb l\u01b0u tr\u1eef, x\u1eed l\u00fd 40 Gbps \u0111\u1ec3 qu\u1ea3n l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn\u2014v\u00ed d\u1ee5: 100 TB l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp h\u00e0ng ng\u00e0y cho nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y. \u0110\u1ed1i v\u1edbi t\u1ed1c \u0111\u1ed9 cao h\u01a1n n\u1eefa, d\u00e2y c\u00e1p MPO-MPO d\u00e0i 1m\u2014v\u00ed d\u1ee5: $50\u2014c\u00f3 th\u1ec3 li\u00ean k\u1ebft c\u00e1c c\u00f4ng t\u1eafc v\u1edbi t\u1ed1c \u0111\u1ed9 100 Gbps, h\u1ed7 tr\u1ee3 h\u00e0ng ngh\u00ecn ng\u01b0\u1eddi d\u00f9ng\u2014v\u00ed d\u1ee5: d\u1ecbch v\u1ee5 ph\u00e1t tr\u1ef1c tuy\u1ebfn v\u1edbi 1 tri\u1ec7u ng\u01b0\u1eddi xem h\u00e0ng ng\u00e0y.<\/p>\n\n\n\n

\"lo\u1ea1i<\/a>
lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/figcaption><\/figure>\n\n\n\n

M\u1ea1ng vi\u1ec5n th\u00f4ng: K\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng<\/h3>\n\n\n\n

M\u1ea1ng vi\u1ec5n th\u00f4ng ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o d\u00e2y v\u00e1 s\u1ee3i quang<\/em>. Trong m\u1ed9t v\u0103n ph\u00f2ng trung t\u00e2m, m\u1ed9t d\u00e2y SC-APC ch\u1ebf \u0111\u1ed9 \u0111\u01a1n d\u00e0i 10m c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb v\u1edbi m\u1ed9t x\u01b0\u01a1ng s\u1ed1ng c\u00e1p quang d\u00e0i 100 km\u2014v\u00ed d\u1ee5, cung c\u1ea5p 1 Gbps cho m\u1ed9t khu ph\u1ed1. Nh\u1eefng d\u00e2y n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi m\u1ed1i n\u1ed1i c\u00e1p quang<\/em>\u2014v\u00ed d\u1ee5, d\u00e2y n\u1ed1i pigtail n\u1ed1i v\u1edbi b\u1ea3ng v\u00e1\u2014\u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u \u0111\u01b0\u1eddng d\u00e0i lu\u00f4n m\u1ea1nh\u2014v\u00ed d\u1ee5, suy hao 0,4 dB tr\u00ean 10 km.<\/p>\n\n\n\n

C\u00e1c l\u0129nh v\u1ef1c chuy\u00ean m\u00f4n: Y t\u1ebf v\u00e0 C\u00f4ng nghi\u1ec7p<\/h3>\n\n\n\n

Trong ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe, d\u00e2y v\u00e1 s\u1ee3i quang<\/em> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c thi\u1ebft l\u1eadp nh\u01b0 m\u00e1y MRI\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC simplex 2m \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u r\u00f5 r\u00e0ng \u0111\u1ec3 ch\u1ee5p \u1ea3nh\u2014v\u00ed d\u1ee5, kh\u00f4ng c\u00f3 nhi\u1ec5u t\u1eeb tr\u01b0\u1eddng. Trong c\u00e1c thi\u1ebft l\u1eadp c\u00f4ng nghi\u1ec7p, d\u00e2y b\u1ecdc th\u00e9p d\u00e0i 5m c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i c\u00e1c c\u1ea3m bi\u1ebfn\u2014v\u00ed d\u1ee5, 1 Gbps \u0111\u1ec3 gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c\u2014n\u01a1i \u0111\u1ed9 b\u1ec1n l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng\u2014v\u00ed d\u1ee5, ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t 2000N.<\/p>\n\n\n\n

Gi\u00e1o d\u1ee5c: K\u1ebft n\u1ed1i tr\u01b0\u1eddng h\u1ecdc<\/h3>\n\n\n\n

Trong gi\u00e1o d\u1ee5c, m\u1ed9t s\u1ee3i d\u00e2y d\u00e0i 3m kh\u00f4ng nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u1ed9 cong\u2014v\u00ed d\u1ee5, $15\u2014c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i c\u00e1c t\u00f2a nh\u00e0 trong khu\u00f4n vi\u00ean tr\u01b0\u1eddng\u2014v\u00ed d\u1ee5, 10 Gbps tr\u00ean 300m\u2014v\u1eeba v\u1eb7n v\u1edbi nh\u1eefng kh\u00f4ng gian ch\u1eadt h\u1eb9p m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t t\u00edn hi\u1ec7u\u2014v\u00ed d\u1ee5, 0,1 dB. T\u1eeb nh\u00e0 \u0111\u1ebfn b\u1ec7nh vi\u1ec7n, d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> cho th\u1ea5y ch\u00fang l\u00e0 m\u1eaft x\u00edch quan tr\u1ecdng trong b\u1ea5t k\u1ef3 m\u1ea1ng l\u01b0\u1edbi t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u00e1ng tin c\u1eady n\u00e0o.<\/p>\n\n\n\n

D\u00e2y c\u00e1p quang c\u00f3 gi\u00e1 bao nhi\u00eau?<\/h2>\n\n\n\n

Ch\u00fang ta h\u00e3y n\u00f3i v\u1ec1 gi\u00e1 d\u00e2y v\u00e1 s\u1ee3i quang<\/em>\u2014b\u1edfi v\u00ec hi\u1ec3u bi\u1ebft v\u1ec1 chi ph\u00ed l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em>. Gi\u00e1 c\u1ee7a m\u1ed9t d\u00e2y v\u00e1 s\u1ee3i<\/em> ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m lo\u1ea1i, chi\u1ec1u d\u00e0i, \u0111\u1ea7u n\u1ed1i, v\u1ecf v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n\n\n\n

D\u00e2y c\u01a1 b\u1ea3n: Simplex v\u00e0 Duplex<\/h3>\n\n\n\n

M\u1ed9t d\u00e2y c\u00e1p \u0111a ch\u1ebf \u0111\u1ed9 LC-LC \u0111\u01a1n c\u00f4ng 1m c\u01a1 b\u1ea3n\u2014v\u00ed d\u1ee5, cho m\u1ed9t v\u0103n ph\u00f2ng nh\u1ecf\u2014c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 l\u00e0 $5, cung c\u1ea5p m\u1ee9c suy gi\u1ea3m t\u00edn hi\u1ec7u th\u1ea5p\u2014v\u00ed d\u1ee5, 0,3 dB tr\u00ean 1m. M\u1ed9t d\u00e2y c\u00e1p SC-SC \u0111\u01a1n ch\u1ebf \u0111\u1ed9 song c\u00f4ng 3m\u2014v\u00ed d\u1ee5, cho m\u1ed9t t\u1ee7 vi\u1ec5n th\u00f4ng\u2014c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 l\u00e0 $15, ph\u1ea3n \u00e1nh ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho kho\u1ea3ng c\u00e1ch xa h\u01a1n\u2014v\u00ed d\u1ee5, suy gi\u1ea3m 0,2 dB\/km.<\/p>\n\n\n\n

D\u00e2y chuy\u00ean d\u1ee5ng: B\u1ecdc th\u00e9p v\u00e0 MPO<\/h3>\n\n\n\n

M\u1ed9t chi\u1ebfc xe b\u1ecdc th\u00e9p d\u00e2y v\u00e1 s\u1ee3i<\/em>\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC d\u00e0i 5m\u2014c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 $25 do l\u1edbp b\u1ea3o v\u1ec7 c\u1ee7a n\u00f3\u2014v\u00ed d\u1ee5, v\u1ecf th\u00e9p ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t 2000N\u2014ho\u00e0n h\u1ea3o cho c\u00e1c nh\u00e0 m\u00e1y. D\u00e2y \u0111a ch\u1ebf \u0111\u1ed9 MPO-MPO d\u00e0i 1m cho 100 Gbps trong trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 th\u1ec3 ch\u1ea1y $50 do thi\u1ebft k\u1ebf nhi\u1ec1u s\u1ee3i\u2014v\u00ed d\u1ee5, 12 s\u1ee3i trong m\u1ed9t \u0111\u1ea7u n\u1ed1i.<\/p>\n\n\n\n

D\u00e2y an to\u00e0n: LSZH v\u00e0 OFNP<\/h3>\n\n\n\n

D\u00e2y \u0111\u01a1n ch\u1ebf \u0111\u1ed9 LSZH 5m\u2014v\u00ed d\u1ee5, cho b\u1ec7nh vi\u1ec7n\u2014c\u00f3 th\u1ec3 c\u00f3 gi\u00e1 $12, ph\u1ea3n \u00e1nh c\u00e1c t\u00ednh n\u0103ng an to\u00e0n c\u1ee7a n\u00f3\u2014v\u00ed d\u1ee5, \u00edt kh\u00f3i trong h\u1ecfa ho\u1ea1n. D\u00e2y OFNP cho kh\u00f4ng gian plenum\u2014v\u00ed d\u1ee5, LC-LC 3m\u2014c\u00f3 th\u1ec3 l\u00e0 $15 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c quy \u0111\u1ecbnh v\u1ec1 ph\u00f2ng ch\u00e1y\u2014v\u00ed d\u1ee5, trong tr\u1ea7n th\u01b0\u01a1ng m\u1ea1i.<\/p>\n\n\n\n

T\u00f3c \u0111u\u00f4i sam v\u00e0 c\u00e1c bi\u1ebfn th\u1ec3 ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n\n\n\n

D\u00e2y n\u1ed1i \u0111u\u00f4i l\u1ee3n\u2014v\u00ed d\u1ee5, d\u00e2y n\u1ed1i \u0111u\u00f4i l\u1ee3n LC d\u00e0i 2m \u0111\u1ec3 n\u1ed1i\u2014c\u00f3 gi\u00e1 kho\u1ea3ng $8, l\u00fd t\u01b0\u1edfng cho m\u1ed1i n\u1ed1i c\u00e1p quang<\/em>\u2014v\u00ed d\u1ee5, trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n vi\u1ec5n th\u00f4ng. M\u1ed9t d\u00e2y c\u00e1p ch\u1ea5t l\u01b0\u1ee3ng cao v\u1edbi \u0111\u1ed9 suy hao ch\u00e8n th\u1ea5p\u2014v\u00ed d\u1ee5, 0,2 dB\u2014c\u00f3 th\u1ec3 t\u1ed1n $20 cho LC-LC song c\u00f4ng 3m, so v\u1edbi d\u00e2y c\u00e1p $10 v\u1edbi \u0111\u1ed9 suy hao 0,5 dB\u2014v\u00ed d\u1ee5, \u0111\u1ea3m b\u1ea3o 1 Gbps \u1ed5n \u0111\u1ecbnh tr\u00ean 10m.<\/p>\n\n\n\n

Gi\u00e1 b\u00e1n bu\u00f4n v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111\u1ea7u n\u1ed1i<\/h3>\n\n\n\n

Ki\u1ec3u \u0111\u00e1nh b\u00f3ng quan tr\u1ecdng\u2014m\u1ed9t \u0111\u1ea7u n\u1ed1i APC\u2014v\u00ed d\u1ee5, d\u00e2y SC-APC d\u00e0i 5m\u2014c\u00f3 th\u1ec3 th\u00eam $2 v\u00e0o UPC\u2014v\u00ed d\u1ee5, $12 so v\u1edbi $10\u2014do ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n\u2014v\u00ed d\u1ee5, m\u1ea5t m\u00e1t ph\u1ea3n h\u1ed3i -60 dB. Mua s\u1ed1 l\u01b0\u1ee3ng l\u1edbn gi\u1ea3m gi\u00e1\u2014v\u00ed d\u1ee5, $3 cho 100 d\u00e2y \u0111a ch\u1ebf \u0111\u1ed9 1m\u2014ti\u1ebft ki\u1ec7m $200. gi\u00e1 d\u00e2y v\u00e1 s\u1ee3i quang<\/em> ph\u1ea1m vi\u2014$5 \u0111\u1ebfn $50\u2014l\u00e0m cho ch\u00fang c\u00f3 th\u1ec3 truy c\u1eadp \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em>.<\/p>\n\n\n\n

T\u1ea1i sao n\u00ean ch\u1ecdn d\u00e2y c\u00e1p quang thay v\u00ec c\u00e1p \u0111\u1ed3ng?<\/h2>\n\n\n\n
\"c\u00e1p<\/a>
c\u00e1p quang so v\u1edbi c\u00e1p \u0111\u1ed3ng<\/figcaption><\/figure>\n\n\n\n

M\u1ed9t c\u00e1ch kh\u00e1c \u0111\u1ec3 hi\u1ec3u d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em> l\u00e0 \u0111\u1ec3 xem t\u1ea1i sao ch\u00fang th\u01b0\u1eddng t\u1ed1t h\u01a1n c\u00e1p \u0111\u1ed3ng. S\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i quang<\/em> cung c\u1ea5p m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf khi\u1ebfn ch\u00fang tr\u1edf n\u00ean n\u1ed5i b\u1eadt.<\/p>\n\n\n\n

L\u1ee3i th\u1ebf v\u1ec1 t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang<\/em> s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng, nhanh h\u01a1n t\u00edn hi\u1ec7u \u0111i\u1ec7n c\u1ee7a \u0111\u1ed3ng\u2014v\u00ed d\u1ee5, 10 Gbps tr\u00ean 500m v\u1edbi m\u1ee9c suy hao 3 dB \u0111\u1ed1i v\u1edbi \u0111a ch\u1ebf \u0111\u1ed9, so v\u1edbi 1 Gbps c\u1ee7a \u0111\u1ed3ng tr\u00ean 100m v\u1edbi m\u1ee9c suy hao 10 dB. M\u1ed9t t\u1ec7p 10 GB m\u1ea5t 8 gi\u00e2y v\u1edbi d\u00e2y c\u00e1p quang 10 Gbps, nh\u01b0ng m\u1ea5t 80 gi\u00e2y v\u1edbi c\u00e1p \u0111\u1ed3ng 1 Gbps.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng kho\u1ea3ng c\u00e1ch<\/h3>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang<\/em> \u0111i xa h\u01a1n\u2014v\u00ed d\u1ee5, m\u1ed9t d\u00e2y \u0111\u01a1n mode duy tr\u00ec 1 Gbps tr\u00ean 10 km v\u1edbi m\u1ee9c suy hao 0,2 dB\/km\u2014trong khi \u0111\u1ed3ng b\u1ecb suy hao\u2014v\u00ed d\u1ee5, 100 Mbps \u1edf 1 km do m\u1ee9c suy hao 10 dB\/km. M\u1ed9t d\u00e2y \u0111\u01a1n mode d\u00e0i 5m c\u00f3 th\u1ec3 li\u00ean k\u1ebft c\u00e1c t\u00f2a nh\u00e0 c\u00e1ch nhau 5 km\u2014v\u00ed d\u1ee5, 1 Gbps\u2014trong khi \u0111\u1ed3ng c\u1ea7n b\u1ed9 l\u1eb7p l\u1ea1i<\/a>\u2014v\u00ed d\u1ee5: $1500 cho 3 \u0111\u01a1n v\u1ecb.<\/p>\n\n\n\n

\u0110\u1ed9 tin c\u1eady trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t<\/h3>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang<\/em> kh\u00f4ng b\u1ecb nhi\u1ec5u\u2014v\u00ed d\u1ee5, kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u b\u1ecb m\u1ea5t g\u1ea7n \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n 50 kV\u2014kh\u00f4ng gi\u1ed1ng nh\u01b0 \u0111\u1ed3ng\u2014v\u00ed d\u1ee5, m\u1ea5t 20% g\u1ea7n m\u00e1y m\u00f3c. Ch\u00fang ch\u1ed1ng ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft\u2014v\u00ed d\u1ee5, kh\u00f4ng b\u1ecb m\u1ea5t \u0111i\u1ec7n khi tr\u1eddi m\u01b0a\u2014trong khi \u0111\u1ed3ng b\u1ecb \u0103n m\u00f2n\u2014v\u00ed d\u1ee5, m\u1ea5t t\u00edn hi\u1ec7u 10% sau m\u1ed9t n\u0103m \u1edf ngo\u00e0i tr\u1eddi.<\/p>\n\n\n\n

L\u1ee3i \u00edch v\u1ec1 an to\u00e0n v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng<\/h3>\n\n\n\n

D\u00e2y v\u00e1 s\u1ee3i quang<\/em> kh\u00f4ng d\u1eabn \u0111i\u1ec7n\u2014v\u00ed d\u1ee5, kh\u00f4ng c\u00f3 nguy c\u01a1 \u0111i\u1ec7n gi\u1eadt\u2014kh\u00f4ng gi\u1ed1ng nh\u01b0 \u0111\u1ed3ng\u2014v\u00ed d\u1ee5, 48V trong c\u00e1p Ethernet\u2014do \u0111\u00f3 ch\u00fang an to\u00e0n h\u01a1n \u1edf nh\u1eefng khu v\u1ef1c nguy hi\u1ec3m\u2014v\u00ed d\u1ee5, nh\u00e0 m\u00e1y h\u00f3a ch\u1ea5t. Ch\u00fang nh\u1eb9 h\u01a1n\u2014v\u00ed d\u1ee5, m\u1ed9t d\u00e2y d\u00e0i 3m n\u1eb7ng 30g so v\u1edbi 100g \u0111\u1ed1i v\u1edbi \u0111\u1ed3ng\u2014l\u00e0m cho ch\u00fang d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n\u2014v\u00ed d\u1ee5, trong c\u00e1c gi\u00e1 \u0111\u1ee1 m\u00e1y ch\u1ee7 ch\u1eadt h\u1eb9p.<\/p>\n\n\n\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn d\u00e2y c\u00e1p quang ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee7a b\u1ea1n?<\/h2>\n\n\n\n

Ch\u1ecdn \u0111\u00fang d\u00e2y v\u00e1 s\u1ee3i<\/em> l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a s\u1ef1 hi\u1ec3u bi\u1ebft d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec<\/em>\u2014v\u1eady l\u00e0m sao \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c c\u00e1i t\u1ed1t nh\u1ea5t?<\/p>\n\n\n\n

Ph\u00f9 h\u1ee3p v\u1edbi kho\u1ea3ng c\u00e1ch<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch xa\u2014v\u00ed d\u1ee5, 5 km gi\u1eefa c\u00e1c v\u0103n ph\u00f2ng\u2014m\u1ed9t ch\u1ebf \u0111\u1ed9 duy nh\u1ea5t d\u00e2y v\u00e1 s\u1ee3i<\/em> l\u00e0 t\u1ed1t nh\u1ea5t\u2014v\u00ed d\u1ee5, d\u00e2y LC-LC ch\u1ebf \u0111\u1ed9 \u0111\u01a1n d\u00e0i 5m v\u1edbi t\u1ed5n th\u1ea5t 0,2 dB\/km\u2014\u0111\u1ea3m b\u1ea3o 1 Gbps. \u0110\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch ng\u1eafn\u2014v\u00ed d\u1ee5, 300m trong trung t\u00e2m d\u1eef li\u1ec7u\u2014d\u00e2y \u0111a ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng\u2014v\u00ed d\u1ee5, d\u00e2y OM4 LC-LC d\u00e0i 3m cho 10 Gbps v\u1edbi t\u1ed5n th\u1ea5t 3 dB\/km\u2014v\u00ed d\u1ee5, $10 so v\u1edbi $15 cho ch\u1ebf \u0111\u1ed9 \u0111\u01a1n.<\/p>\n\n\n\n

Ki\u1ec3m tra kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a \u0111\u1ea7u n\u1ed1i<\/h3>\n\n\n\n

C\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i quang<\/em> c\u00f3 c\u00e1c \u0111\u1ea7u kh\u00e1c nhau\u2014v\u00ed d\u1ee5: LC, SC, ST, FC ho\u1eb7c MPO. N\u1ebfu thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n c\u00f3 c\u1ed5ng LC v\u00e0 m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n c\u00f3 c\u1ed5ng SC, b\u1ea1n s\u1ebd c\u1ea7n d\u00e2y LC-SC d\u00e0i 2m\u2014v\u00ed d\u1ee5: $12. \u0110\u1ed1i v\u1edbi m\u1eadt \u0111\u1ed9 cao, d\u00e2y MPO-MPO\u2014v\u00ed d\u1ee5: $50 cho 1m\u2014c\u00f3 th\u1ec3 l\u00e0 t\u1ed1t nh\u1ea5t\u2014v\u00ed d\u1ee5: cho 100 Gbps tr\u00ean 12 s\u1ee3i quang.<\/p>\n\n\n\n

\"D\u00e2y<\/a>
D\u00e2y nh\u1ea3y quang 3<\/figcaption><\/figure>\n\n\n\n

Xem x\u00e9t y\u00eau c\u1ea7u v\u1ec1 t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n

\u0110\u1ed1i v\u1edbi nhu c\u1ea7u t\u1ed1c \u0111\u1ed9 cao\u2014v\u00ed d\u1ee5, 40 Gbps trong trung t\u00e2m d\u1eef li\u1ec7u\u2014h\u00e3y s\u1eed d\u1ee5ng d\u00e2y \u0111a ch\u1ebf \u0111\u1ed9 OM4\u2014v\u00ed d\u1ee5, LC-LC 5m h\u1ed7 tr\u1ee3 150m \u1edf t\u1ed1c \u0111\u1ed9 40 Gbps. \u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft l\u1eadp \u0111\u01a1n gi\u1ea3n h\u01a1n\u2014v\u00ed d\u1ee5, 1 Gbps trong gia \u0111\u00ecnh\u2014OM1 ho\u1eb7c OM3 \u0111a ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng\u2014v\u00ed d\u1ee5, d\u00e2y 1m cho $5\u2014ph\u00f9 h\u1ee3p v\u1edbi dung l\u01b0\u1ee3ng c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

T\u00e0i kho\u1ea3n cho M\u00f4i tr\u01b0\u1eddng<\/h3>\n\n\n\n

Trong nh\u1eefng ho\u00e0n c\u1ea3nh kh\u1eafc nghi\u1ec7t\u2014v\u00ed d\u1ee5, m\u1ed9t nh\u00e0 m\u00e1y\u2014m\u1ed9t xe b\u1ecdc th\u00e9p d\u00e2y v\u00e1 s\u1ee3i<\/em> l\u00e0 th\u00f4ng minh\u2014v\u00ed d\u1ee5, LC-LC b\u1ecdc th\u00e9p 5m cho $25\u2014ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p l\u1ef1c 2000N. \u1ede n\u01a1i c\u00f4ng c\u1ed9ng\u2014v\u00ed d\u1ee5, tr\u01b0\u1eddng h\u1ecdc\u2014d\u00e2y LSZH\u2014v\u00ed d\u1ee5, $12 cho 5m\u2014\u0111\u1ea3m b\u1ea3o an to\u00e0n. \u0110\u1ed1i v\u1edbi kh\u00f4ng gian ch\u1eadt h\u1eb9p\u2014v\u00ed d\u1ee5, gi\u00e1 \u0111\u1ee1 m\u00e1y ch\u1ee7\u2014d\u00e2y kh\u00f4ng nh\u1ea1y u\u1ed1n cong\u2014v\u00ed d\u1ee5, $15 cho 3m\u2014x\u1eed l\u00fd \u0111\u01b0\u1ee3c \u0111\u1ed9 cong 7,5mm\u2014v\u00ed d\u1ee5, m\u1ea5t m\u00e1t 0,1 dB.<\/p>\n\n\n\n

C\u00e2n b\u1eb1ng chi ph\u00ed v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n\n\n\n

H\u00e3y xem x\u00e9t gi\u00e1 d\u00e2y v\u00e1 s\u1ee3i quang<\/em>\u2014v\u00ed d\u1ee5, $5-50\u2014v\u00e0 c\u00e2n b\u1eb1ng chi ph\u00ed v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng\u2014v\u00ed d\u1ee5, d\u00e2y c\u00e1p c\u00f3 \u0111\u1ed9 suy hao th\u1ea5p (0,2 dB) cho $20 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1t h\u01a1n tr\u00ean 10m so v\u1edbi d\u00e2y c\u00e1p $10 (0,5 dB). M\u1ed9t v\u0103n ph\u00f2ng nh\u1ecf c\u00f3 th\u1ec3 ch\u1ecdn UPC LC-LC song c\u00f4ng 3m cho $10, trong khi m\u1ed9t trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecdn MPO-MPO 1m cho $50.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn: T\u1ea1i sao d\u00e2y v\u00e1 s\u1ee3i quang l\u1ea1i c\u1ea7n thi\u1ebft cho k\u1ebft n\u1ed1i<\/h2>\n\n\n\n

D\u00e2y nh\u1ea3y quang l\u00e0 g\u00ec<\/em>? \u0110\u00f3 l\u00e0 lo\u1ea1i c\u00e1p nh\u1ecf nh\u01b0ng m\u1ea1nh m\u1ebd gi\u00fap m\u1ea1ng c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i\u2014truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng, gi\u1ed1ng nh\u01b0 \u0111\u01b0\u1eddng d\u00e2y c\u1ee9u sinh cho th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a b\u1ea1n. Ch\u00fang t\u00f4i \u0111\u00e3 kh\u00e1m ph\u00e1 c\u00e1c lo\u1ea1i d\u00e2y v\u00e1 s\u1ee3i<\/em>\u2014t\u1eeb ch\u1ebf \u0111\u1ed9 \u0111\u01a1n \u0111\u1ebfn ch\u1ebf \u0111\u1ed9 b\u1ecdc th\u00e9p\u2014v\u00e0 s\u1eed d\u1ee5ng d\u00e2y v\u00e1 s\u1ee3i<\/em>\u2014t\u1eeb nh\u00e0 \u1edf \u0111\u1ebfn trung t\u00e2m d\u1eef li\u1ec7u\u2014c\u00f9ng v\u1edbi chi ph\u00ed, l\u1ee3i \u00edch v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn ch\u00fang. gi\u00e1 d\u00e2y v\u00e1 s\u1ee3i quang<\/em>\u2014b\u1eaft \u0111\u1ea7u t\u1eeb $5 v\u1edbi M\u1ea1ng l\u01b0\u1edbi giao ti\u1ebfp<\/a>\u2014l\u00e0m cho ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t c\u00e1ch h\u1ee3p l\u00fd \u0111\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a m\u1ea1ng\u2014v\u00ed d\u1ee5: 10 Gbps v\u1edbi th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng 99,99%. Cho d\u00f9 b\u1ea1n \u0111ang thi\u1ebft l\u1eadp m\u1ed9t v\u0103n ph\u00f2ng nh\u1ecf hay m\u1ed9t h\u1ec7 th\u1ed1ng quy m\u00f4 l\u1edbn, d\u00e2y v\u00e1 s\u1ee3i quang<\/em> l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 duy tr\u00ec k\u1ebft n\u1ed1i\u2014h\u00e3y l\u1ea5y m\u1ed9t c\u00e1i v\u00e0 t\u1ef1 m\u00ecnh xem s\u1ef1 kh\u00e1c bi\u1ec7t!<\/p>","protected":false},"excerpt":{"rendered":"

B\u1ea1n \u0111\u00e3 bao gi\u1edd b\u1eaft g\u1eb7p thu\u1eadt ng\u1eef d\u00e2y v\u00e1 s\u1ee3i quang v\u00e0 t\u1ef1 h\u1ecfi, d\u00e2y v\u00e1 s\u1ee3i quang l\u00e0 g\u00ec ch\u01b0a? Nh\u1eefng s\u1ee3i c\u00e1p nh\u1ecf n\u00e0y c\u00f3 v\u1ebb \u0111\u01a1n gi\u1ea3n, nh\u01b0ng ch\u00fang l\u00e0 nh\u1eefng anh h\u00f9ng th\u1ea7m l\u1eb7ng c\u1ee7a m\u1ea1ng l\u01b0\u1edbi hi\u1ec7n \u0111\u1ea1i, k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i tr\u01a1n tru. Cho d\u00f9 b\u1ea1n \u0111ang thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng Wi-Fi t\u1ea1i nh\u00e0, qu\u1ea3n l\u00fd m\u1ea1ng v\u0103n ph\u00f2ng hay l\u00e0m vi\u1ec7c trong [\u2026]<\/p>","protected":false},"author":1,"featured_media":1610,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"34","_seopress_titles_title":"What Is Fiber Patch Cord: A Beginner\u2019s Guide - CommMesh","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[34],"tags":[],"class_list":["post-3245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/comments?post=3245"}],"version-history":[{"count":16,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3245\/revisions"}],"predecessor-version":[{"id":3289,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3245\/revisions\/3289"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/media\/1610"}],"wp:attachment":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/media?parent=3245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/categories?post=3245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/tags?post=3245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}