{"id":645,"date":"2018-07-12T23:35:22","date_gmt":"2018-07-12T16:35:22","guid":{"rendered":"https:\/\/lagonet.vn\/?p=645"},"modified":"2018-07-12T23:35:22","modified_gmt":"2018-07-12T16:35:22","slug":"sfp-module-la-gi-lam-sao-de-chon-dung-sfp","status":"publish","type":"post","link":"https:\/\/kb.lagonet.vn\/?p=645","title":{"rendered":"SFP MODULE L\u00c0 G\u00cc? L\u00c0M SAO \u0110\u1ec2 CH\u1eccN \u0110\u00daNG SFP"},"content":{"rendered":"

B\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, NIC (card giao di\u1ec7n m\u1ea1ng) v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng, l\u00e0m cho ch\u00fang c\u1ea7n thi\u1ebft trong c\u00e1c k\u1ebft n\u1ed1i quang h\u1ecdc s\u1ee3i quang. M\u00f4-\u0111un SFP \u0111\u00e3 \u0111\u01b0\u1ee3c m\u1ed9t ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u00f4ng nghi\u1ec7p trong h\u01a1n 15 n\u0103m s\u1ebd \u0111\u01b0\u1ee3c kh\u00e1m ph\u00e1 trong b\u00e0i \u0111\u0103ng n\u00e0y, c\u00e1c lo\u1ea1i m\u00f4-\u0111un SFP v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p \u0111\u01b0\u1ee3c bao g\u1ed3m.<\/p>\n

\"1G
1G SFP module<\/figcaption><\/figure>\n

Sfp l\u00e0 g\u00ec
\nM\u00f4-\u0111un SFP l\u00e0 g\u00ec?
\nM\u00f4-\u0111un SFP, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 vi x\u1eed l\u00fd d\u1ea1ng nh\u1ecf ho\u1eb7c GBIC nh\u1ecf (b\u1ed9 chuy\u1ec3n \u0111\u1ed5i giao di\u1ec7n gigabit), l\u00e0 m\u1ed9t m\u00f4-\u0111un thu ph\u00e1t quang nh\u1ecf g\u1ecdn, c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u1ea3 \u1ee9ng d\u1ee5ng truy\u1ec1n th\u00f4ng v\u00e0 d\u1eef li\u1ec7u vi\u1ec5n th\u00f4ng. C\u1ed5ng SFP c\u1ee7a n\u00f3 ch\u1ea5p nh\u1eadn c\u1ea3 hai m\u00f4-\u0111un quang v\u00e0 c\u00e1p \u0111\u1ed3ng. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0 h\u1ed7 tr\u1ee3 b\u1edfi nhi\u1ec1u nh\u00e0 cung c\u1ea5p th\u00e0nh ph\u1ea7n m\u1ea1ng. M\u00f4 \u0111un thu ph\u00e1t SFP kh\u00f4ng \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a b\u1edfi b\u1ea5t k\u1ef3 c\u01a1 quan ti\u00eau chu\u1ea9n ch\u00ednh th\u1ee9c n\u00e0o, m\u00e0 \u0111\u00fang h\u01a1n l\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u1ed9t th\u1ecfa thu\u1eadn \u0111a ngu\u1ed3n (MSA). V\u00e0 SFP m\u00f4-\u0111un c\u0169ng h\u1ed7 tr\u1ee3 SONET, Gigabit Ethernet, Fibre Channel v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n truy\u1ec1n th\u00f4ng kh\u00e1c. Ngo\u00e0i ra, SFP \u0111\u00e3 thay th\u1ebf GBIC trong h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng v\u00ec k\u00edch th\u01b0\u1edbc nh\u1ecf c\u1ee7a n\u00f3.<\/p>\n

Bao nhi\u00eau lo\u1ea1i m\u00f4-\u0111un SFP?
\nM\u00f4-\u0111un thu ph\u00e1t SFP c\u00f3 nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau tr\u00ean c\u01a1 s\u1edf c\u00e1c ti\u00eau chu\u1ea9n ph\u00e2n lo\u1ea1i kh\u00e1c nhau. C\u00f3 m\u00f4-\u0111un SFP ch\u1ebf \u0111\u1ed9 \u0111\u01a1n v\u00e0 m\u00f4-\u0111un SFP \u0111a \u0111i\u1ec3m theo lo\u1ea1i c\u00e1p, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng ch\u1ecdn b\u1ed9 thu ph\u00e1t th\u00edch h\u1ee3p theo ph\u1ea1m vi quang y\u00eau c\u1ea7u cho m\u1ea1ng. V\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n c\u1ee7a m\u00f4-\u0111un SFP c\u00f3 s\u1eb5n t\u1eeb 100Mbps \u0111\u1ebfn 4Gbps tr\u1edf l\u00ean. Kho\u1ea3ng c\u00e1ch l\u00e0m vi\u1ec7c c\u1ee7a c\u00e1c m\u00f4 \u0111un thu ph\u00e1t SFP n\u00e0y c\u00f3 th\u1ec3 t\u1eeb 500 m\u00e9t \u0111\u1ebfn 100 km. M\u00f4-\u0111un SFP CWDM v\u00e0 c\u00e1c m\u00f4-\u0111un SFP DWDM c\u0169ng c\u00f3 s\u1eb5n cho c\u00e1c li\u00ean k\u1ebft WDM. Ngo\u00e0i ra, m\u00f4-\u0111un SFP \u0111\u1ed3ng cho ph\u00e9p truy\u1ec1n th\u00f4ng qua c\u00e1p m\u1ea1ng c\u1eb7p \u0111\u00f4i xo\u1eafn. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u00e2n lo\u1ea1i \u0111\u01a1n gi\u1ea3n c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP. B\u1ea3ng sau \u0111\u00e2y l\u00e0 m\u1ed9t ph\u00e2n lo\u1ea1i \u0111\u01a1n gi\u1ea3n c\u00e1c m\u00f4-\u0111un SFP. \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin chi ti\u1ebft v\u1ec1 m\u00f4-\u0111un thu ph\u00e1t SFP, vui l\u00f2ng \u0111\u1ecdc C\u00f3 bao nhi\u00eau lo\u1ea1i m\u00e1y thu ph\u00e1t SFP m\u00e0 b\u1ea1n bi\u1ebft<\/p>\n\n\n\n\n\n\n\n\n
SFP Types<\/th>\nTransceiver Type<\/th>\nConnector<\/th>\nDistance<\/th>\nData Rate<\/th>\n<\/tr>\n
\n
SFP Fiber Module<\/div>\n<\/td>\n
\n
SX, MX, LX, EX, ZX, EZX, BX<\/div>\n<\/td>\n
\n
LC Duplex<\/div>\n<\/td>\n
\n
100m-160km over MMF or SMF<\/div>\n<\/td>\n
\n
100Mbps\/
\n1000Mbps<\/div>\n<\/td>\n<\/tr>\n
\n
CWDM\/DWDM SFP<\/div>\n<\/td>\n
\n
LC Duplex<\/div>\n<\/td>\n
\n
10km-120km over SMF<\/div>\n<\/td>\n<\/tr>\n
\n
SFP Copper Module<\/div>\n<\/td>\n
\n
1000BASE-T<\/div>\n<\/td>\n
\n
RJ45<\/div>\n<\/td>\n
\n
100m over Copper Twist Pair Cable<\/div>\n<\/td>\n
\n
1000Mbps<\/div>\n<\/td>\n<\/tr>\n
\n
10\/100BASE-T<\/div>\n<\/td>\n
\n
RJ45<\/div>\n<\/td>\n
\n
100m over Copper Twist Pair Cable<\/div>\n<\/td>\n
\n
100Mbps<\/div>\n<\/td>\n<\/tr>\n
\n
10\/100\/1000BASE-T<\/div>\n<\/td>\n
\n
RJ45<\/div>\n<\/td>\n
\n
100m over Copper Twist Pair Cable<\/div>\n<\/td>\n
\n
1000Mbps<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Th\u00f4ng th\u01b0\u1eddng, c\u00e1c c\u1ed5ng SFP \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch Ethernet, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, t\u01b0\u1eddng l\u1eeda v\u00e0 th\u1ebb NIC. C\u00e1c m\u00f4-\u0111un SFP k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb m\u1ea1ng v\u1edbi c\u00e1p m\u1ea1ng c\u00e1p quang ho\u1eb7c c\u00e1p \u0111\u1ed3ng nh\u01b0 Cat5e. V\u00e0 c\u00e1c lo\u1ea1i m\u00e1y thu ph\u00e1t quang SFP kh\u00e1c nh\u01b0 SFP video 3G, SFP video 12G c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y \u1ea3nh HD ho\u1eb7c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t. Th\u00f4ng tin th\u00eam v\u1ec1 b\u1ed9 thu ph\u00e1t video HD \u0111\u00e3 \u0111\u01b0\u1ee3c minh h\u1ecda trong b\u00e0i n\u00e0y: Hi\u1ec3u Video SFP Transceivers<\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 m\u00f4-\u0111un SFP
\n1. DDM, DOM, RGD-H\u1ecd \u0111\u1ea1i di\u1ec7n cho nh\u1eefng functon n\u00e0o?
\nDDM, DOM v\u00e0 RGD l\u00e0 ph\u1ed5 bi\u1ebfn trong c\u00e1c t\u00ean tr\u00ecnh thu ph\u00e1t SFP, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng nh\u1ea7m l\u1eabn. Trong th\u1ef1c t\u1ebf, DDM (Digital Diagnostics Monitoring) l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng theo d\u00f5i c\u00e1c tham s\u1ed1 th\u1eddi gian th\u1ef1c trong c\u00e1c m\u00f4-\u0111un SFP nh\u01b0 c\u00f4ng su\u1ea5t \u0111\u1ea7u v\u00e0o, c\u00f4ng su\u1ea5t \u0111\u1ea7u ra v\u00e0 nhi\u1ec7t \u0111\u1ed9. DOM (gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1) t\u01b0\u01a1ng t\u1ef1 nh\u01b0 DDM, cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng theo d\u00f5i c\u00e1c th\u00f4ng s\u1ed1 c\u1ee7a b\u1ed9 thu ph\u00e1t SFP. RGD c\u00f3 ngh\u0129a l\u00e0 SFP l\u00e0 thi\u1ebft b\u1ecb thu ph\u00e1t l\u1edbp \u201cch\u1eafc ch\u1eafn\u201d ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng c\u00f4ng nghi\u1ec7p nh\u01b0 t\u1ef1 \u0111\u1ed9ng h\u00f3a s\u1ea3n xu\u1ea5t, tr\u1ea1m bi\u1ebfn \u00e1p v\u00e0 h\u1ec7 th\u1ed1ng giao th\u00f4ng th\u00f4ng minh.<\/p>\n

2. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa SFP singlemode v\u00e0 SFP \u0111a \u0111i\u1ec3m l\u00e0 g\u00ec?
\nC\u00f3 ba \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa SFP singlemode (SMF SFP) v\u00e0 SFP \u0111a mode (MMF SFP). \u0110\u1ea7u ti\u00ean l\u00e0 c\u00e1p quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi ch\u00fang. S\u1ee3i singlemode c\u00f3 l\u00f5i nh\u1ecf h\u01a1n c\u00e1p \u0111a mode v\u00e0 cho ph\u00e9p b\u0103ng th\u00f4ng kh\u00f4ng gi\u1edbi h\u1ea1n v\u00e0 gi\u1ea3m t\u1ed5n th\u1ea5t th\u1ea5p h\u01a1n. Trong khi c\u00e1p \u0111a mode c\u00f3 th\u1ec3 truy\u1ec1n nhi\u1ec1u ch\u1ebf \u0111\u1ed9 \u00e1nh s\u00e1ng. Th\u1ee9 hai l\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn. B\u1ed9 thu ph\u00e1t SFP singlemode th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c li\u00ean k\u1ebft d\u00e0i t\u1edbi 120km, nh\u01b0ng m\u00f4-\u0111un SFP \u0111a \u0111i\u1ec3m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ng\u1eafn. C\u00e1i cu\u1ed1i c\u00f9ng l\u00e0 chi ph\u00ed. SingleMode SFP \u0111\u1eaft h\u01a1n SFP \u0111a \u0111i\u1ec3m do s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb ph\u00e1t s\u00e1ng kh\u00e1c nhau.<\/p>\n

3. S\u1ef1 kh\u00e1c nhau gi\u1eefa SFP v\u00e0 SFP + l\u00e0 g\u00ec?
\nSFP v\u00e0 SFP + c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc v\u00e0 di\u1ec7n m\u1ea1o. C\u00e1c differenceaa ch\u00ednh gi\u1eefa SFP v\u00e0 SFP + l\u00e0 SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c \u1ee9ng d\u1ee5ng 100Base ho\u1eb7c 1000Base, trong khi SFP + \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng Gigabit Ethernet. V\u00e0 t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn c\u1ee7a ch\u00fang c\u0169ng kh\u00e1c nhau. V\u00ed d\u1ee5, SFP h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 l\u00ean \u0111\u1ebfn thu ph\u00e1t k\u00eanh quang 4Gbps, trong khi t\u1ed1c \u0111\u1ed9 c\u1ee7a b\u1ed9 thu ph\u00e1t SFP + l\u00ean t\u1edbi 10.3125Gbps.<\/p>\n

4. Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng SFP trong c\u00e1c khe c\u1eafm SFP + kh\u00f4ng?
\nTrong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, c\u1ed5ng SFP + ch\u1ea5p nh\u1eadn quang h\u1ecdc SFP, nh\u01b0ng t\u1ed1c \u0111\u1ed9 s\u1ebd gi\u1ea3m xu\u1ed1ng 1G thay v\u00ec 10G. Tuy nhi\u00ean, kh\u00f4ng th\u1ec3 c\u1eafm SFP + v\u00e0o c\u1ed5ng SFP v\u00ec SFP + kh\u00f4ng h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 d\u01b0\u1edbi 1G. Ngo\u00e0i ra, h\u1ea7u nh\u01b0 t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng SFP + tr\u00ean c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch c\u1ee7a Cisco \u0111\u1ec1u c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 SFP, nh\u01b0ng nhi\u1ec1u c\u1ed5ng SFP + c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch th\u1ed5 c\u1ea9m ch\u1ec9 h\u1ed7 tr\u1ee3 quang h\u1ecdc SFP +.<\/p>\n

5. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 duy tr\u00ec m\u00f4-\u0111un SFP?
\nN\u00f3i chung, c\u00f3 m\u1ed9t s\u1ed1 kh\u00eda c\u1ea1nh \u0111\u1ec3 duy tr\u00ec thu ph\u00e1t SFP.<\/p>\n

B\u1ea3o v\u1ec7 c\u1ed5ng quang. Gi\u1eef cho m\u1eb7t s\u1ea1ch s\u1ebd; tr\u00e1nh ti\u1ebfp x\u00fac k\u00e9o d\u00e0i c\u1ed5ng SFP trong kh\u00f4ng kh\u00ed; tr\u00e1nh g\u00e3i m\u1eb7t ho\u1eb7c tay \u00e1o, v.v.
\nS\u1eed d\u1ee5ng m\u00f4-\u0111un SFP ch\u00ednh x\u00e1c. Gi\u1eef thi\u1ebft b\u1ecb thu ph\u00e1t quang \u1edf m\u1ee9c b\u00ecnh th\u01b0\u1eddng; c\u1eafm v\u00e0 l\u1eafp b\u1ed9 thu ph\u00e1t SFP nh\u1eb9 nh\u00e0ng \u0111\u1ec3 gi\u1ea3m thi\u1ec7t h\u1ea1i ng\u1eabu nhi\u00ean
\nGi\u1eef \u0111\u1ed9 \u1ea9m m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ed9 thu ph\u00e1t SFP l\u00e0 b\u00ecnh th\u01b0\u1eddng.
\n\u0110i\u1ec1u g\u00ec c\u1ea7n xem x\u00e9t khi ch\u1ecdn m\u00f4-\u0111un SFP?
\nKhi n\u00f3i \u0111\u1ebfn vi\u1ec7c mua c\u00e1c m\u00f4-\u0111un SFP, c\u00e1c m\u00f4-\u0111un SFP c\u1ee7a Cisco l\u00e0 c\u00e1c \u01b0u ti\u00ean cho nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng. Tuy nhi\u00ean, khi s\u1ef1 th\u1ecbnh v\u01b0\u1ee3ng c\u1ee7a th\u1ecb tr\u01b0\u1eddng thu ph\u00e1t quang, v\u00f4 s\u1ed1 c\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y thu ph\u00e1t quang b\u00ean th\u1ee9 ba b\u1eaft \u0111\u1ea7u cung c\u1ea5p c\u00e1c m\u00f4-\u0111un SFP r\u1ebb h\u01a1n c\u00f3 c\u00f9ng hi\u1ec7u n\u0103ng v\u1edbi Cisco SFP. Sau \u0111\u00f3, nh\u1eefng g\u00ec c\u1ea7n xem x\u00e9t khi l\u1ef1a ch\u1ecdn m\u00f4-\u0111un SFP 1G?<\/p>\n

\"SFP
SFP module<\/figcaption><\/figure>\n

SFP Module t\u01b0\u01a1ng th\u00edch
\nKhi mua thi\u1ebft b\u1ecb thu ph\u00e1t quang SFP c\u1ee7a b\u00ean th\u1ee9 ba, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch th\u01b0\u1eddng l\u00e0 th\u00f4ng s\u1ed1 m\u00e0 ng\u01b0\u1eddi d\u00f9ng quan t\u00e2m nh\u1ea5t. Tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra trung t\u00e2m ki\u1ec3m tra quang h\u1ecdc c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u1ec3 x\u00e1c nh\u1eadn xem m\u00f4-\u0111un SFP b\u1ea1n ch\u1ecdn c\u00f3 t\u01b0\u01a1ng th\u00edch v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n hay kh\u00f4ng. Ho\u1eb7c ch\u1ec9 c\u1ea7n y\u00eau c\u1ea7u \u0111\u1ea1i di\u1ec7n b\u00e1n h\u00e0ng \u0111\u1ec3 bi\u1ebft chi ti\u1ebft v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch b\u1ed9 thu ph\u00e1t SFP.<\/p>\n

M\u00f4-\u0111un SFP m\u1edbi v\u00e0 SFP c\u0169
\nC\u00f3 c\u1ea3 b\u1ed9 thu ph\u00e1t SFP m\u1edbi v\u00e0 c\u0169 tr\u00ean th\u1ecb tr\u01b0\u1eddng. T\u00ecm hi\u1ec3u \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u1ed1i x\u1eed v\u1edbi h\u1ecd c\u00f3 th\u1ec3 tr\u00e1nh m\u1ea5t m\u00e1t kh\u00f4ng c\u1ea7n thi\u1ebft. Th\u00f4ng th\u01b0\u1eddng, m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f3 th\u1ec3 c\u00f3 c\u00e1c v\u1ebft tr\u1ea7y x\u01b0\u1edbc v\u1ec1 s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a n\u00f3 v\u00e0 c\u1ed5ng quang, \u0111\u00f3 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u01a1 b\u1ea3n \u0111\u1ec3 n\u00f3i t\u1eeb n\u00f3. B\u00ean c\u1ea1nh \u0111\u00f3, ki\u1ec3m tra c\u00f4ng su\u1ea5t quang h\u1ecdc, v\u00e0 so s\u00e1nh k\u1ebft qu\u1ea3 th\u1eed v\u1edbi th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt l\u00e0 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 kh\u00e1c. N\u1ebfu k\u1ebft qu\u1ea3 l\u00e0 kh\u00e1c nhau nhi\u1ec1u, h\u00e3y c\u1ea9n th\u1eadn, n\u00f3 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t m\u00f4-\u0111un SFP c\u0169.<\/p>\n

Gi\u00e1 m\u00f4-\u0111un SFP
\nSo v\u1edbi Cisco SFP ho\u1eb7c c\u00e1c m\u00f4-\u0111un SFP th\u01b0\u01a1ng hi\u1ec7u kh\u00e1c, thi\u1ebft b\u1ecb thu ph\u00e1t quang SFP c\u1ee7a b\u00ean th\u1ee9 ba hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed h\u01a1n. Trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, ngo\u1ea1i tr\u1eeb gi\u00e1, kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP 1G v\u00e0 OEM SFP t\u01b0\u01a1ng th\u00edch. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c m\u00f4-\u0111un SFP t\u01b0\u01a1ng th\u00edch ph\u1ed5 bi\u1ebfn tr\u00ean th\u1ecb tr\u01b0\u1eddng. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ch\u1ecdn b\u1ed9 thu ph\u00e1t quang SFP t\u01b0\u01a1ng th\u00edch ph\u00f9 h\u1ee3p t\u1eeb m\u1ed9t nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady theo nhu c\u1ea7u c\u1ee7a h\u1ecd v\u1edbi gi\u00e1 r\u1ebb. Nh\u1ea5n v\u00e0o \u0111\u00e2y \u0111\u1ec3 ki\u1ec3m tra danh s\u00e1ch Pirce SFP Module tr\u00ean FS.COM.<\/p>\n

\u1ed4n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9
\nM\u00f4-\u0111un thu ph\u00e1t SFP ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c tr\u00ean c\u00e1c c\u00f4ng t\u1eafc c\u00f3 nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 kh\u00e1c nhau trong ph\u1ea1m vi r\u1ed9ng. Qu\u00e1 cao ho\u1eb7c hai nhi\u1ec7t \u0111\u1ed9 th\u1ea5p c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00f4ng su\u1ea5t quang h\u1ecdc v\u00e0 \u0111\u1ed9 nh\u1ea1y quang h\u1ecdc. Do \u0111\u00f3, \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00f4-\u0111un SFP ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n

Ch\u1ea5t l\u01b0\u1ee3ng m\u00f4-\u0111un SFP v\u00e0 d\u1ecbch v\u1ee5 sau b\u00e1n h\u00e0ng
\nKh\u00f4ng ai c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c m\u00f4-\u0111un SFP nh\u1eadn \u0111\u01b0\u1ee3c l\u00e0 100% b\u00ecnh th\u01b0\u1eddng. V\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a m\u00e1y thu ph\u00e1t quang th\u01b0\u1eddng l\u00e0 5 n\u0103m trong s\u1ed1 nhi\u1ec1u nh\u00e0 cung c\u1ea5p. Th\u1eadt kh\u00f3 \u0111\u1ec3 n\u00f3i r\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng l\u00e0 t\u1ed1t hay x\u1ea5u trong n\u0103m \u0111\u1ea7u ti\u00ean. V\u00ec v\u1eady, ch\u1ecdn m\u1ed9t nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady l\u00e0 quan tr\u1ecdng.<\/p>\n

T\u1ea1i sao FS.COM l\u1ea1i l\u00e0 m\u1ed9t trong nh\u1eefng nh\u00e0 cung c\u1ea5p m\u00f4-\u0111un SFP t\u1ed1t nh\u1ea5t?
\nFS.COM cung c\u1ea5p gi\u1ea3i ph\u00e1p m\u00f4-\u0111un SFP to\u00e0n di\u1ec7n cho m\u1ea1ng Ethernet v\u00e0 l\u01b0u tr\u1eef. T\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m tra 100% v\u1edbi h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng th\u00f4ng minh c\u1ee7a FS.COM v\u00e0 gi\u01b0\u1eddng th\u1eed nghi\u1ec7m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch cao.<\/p>\n

B\u00e0i vi\u1ebft li\u00ean quan: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ki\u1ec3m tra SFP Module T\u00edn hi\u1ec7u quang m\u1ea1nh?
\nB\u00e0i vi\u1ebft li\u00ean quan: Hi\u1ec3u bi\u1ebft v\u1ec1 c\u00e1c m\u00f4-\u0111un thu ph\u00e1t \u0111\u1ed3ng SFP + 10GBASE-T<\/p>\n

Chi ti\u1ebft xem th\u00eam t\u1ea1i:\u00a0https:\/\/community.fs.com\/blog\/sfp-module-what-is-it-and-how-to-choose-it.html<\/a><\/p>\n

C\u00e1c b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o th\u00eam b\u00e0i vi\u1ebft n\u00e0y:<\/p>\n

https:\/\/lagonet.vn\/cac-loai-sfp-tren-thi-truong-pid-1190.html<\/p>\n

ho\u1eb7c b\u00e0i post
\nhttps:\/\/www.facebook.com\/groups\/quatrimangCC\/permalink\/1503383276474042\/<\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 thi\u1ebft b\u1ecb chuy\u1ec3n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25,21,6],"tags":[97,107,108,121],"class_list":["post-645","post","type-post","status-publish","format-standard","hentry","category-cisco","category-juniper","category-networking","tag-optical-module","tag-sfp-module","tag-sfp-transceiver","tag-transceiver-module"],"_links":{"self":[{"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=\/wp\/v2\/posts\/645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=645"}],"version-history":[{"count":0,"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=\/wp\/v2\/posts\/645\/revisions"}],"wp:attachment":[{"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=645"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=645"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kb.lagonet.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}