{"id":18635,"date":"2025-03-05T02:20:16","date_gmt":"2025-03-05T02:20:16","guid":{"rendered":"https:\/\/dekam-fiber.com\/?p=18635"},"modified":"2025-03-05T02:41:00","modified_gmt":"2025-03-05T02:41:00","slug":"advantages-and-disadvantages-of-fiber-optic-cable-over-copper-cable","status":"publish","type":"post","link":"https:\/\/dekam-fiber.com\/vi\/advantages-and-disadvantages-of-fiber-optic-cable-over-copper-cable\/","title":{"rendered":"\u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1p quang so v\u1edbi c\u00e1p \u0111\u1ed3ng"},"content":{"rendered":"

B\u1ea1n c\u00f3 mu\u1ed1n internet nhanh nh\u01b0 ch\u1edbp m\u00e0 kh\u00f4ng b\u1ecb tr\u1ec5 kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec c\u00e1p quang ch\u00ednh l\u00e0 th\u1ee9 b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm. Ch\u00fang truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng so v\u1edbi c\u00e1p \u0111\u1ed3ng ph\u1ea3i v\u1eadt l\u1ed9n tr\u00ean nh\u1eefng kho\u1ea3ng c\u00e1ch xa. M\u1eb7c d\u00f9 c\u00e1p quang nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n, nh\u01b0ng ch\u00fang c\u0169ng c\u00f3 th\u1ec3 \u0111\u1eaft ti\u1ec1n v\u00e0 kh\u00e1 gi\u00f2n.
<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao, trong blog n\u00e0y, ch\u00fang t\u00f4i s\u1ebd th\u1ea3o lu\u1eadn chi ti\u1ebft t\u1ea1i sao c\u00e1p quang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n c\u00e1p \u0111\u1ed3ng. H\u01a1n n\u1eefa, ch\u00fang t\u00f4i c\u0169ng s\u1ebd th\u1ea3o lu\u1eadn v\u1ec1 nh\u1eefng h\u1ea1n ch\u1ebf khi s\u1eed d\u1ee5ng lo\u1ea1i c\u00e1p n\u00e0y so v\u1edbi d\u00e2y \u0111\u1ed3ng truy\u1ec1n th\u1ed1ng. V\u1eady h\u00e3y c\u00f9ng ch\u00fang t\u00f4i!<\/p>\n\n\n\n\n\n

\"hi\u1ec7u<\/figure>\n\n\n\n

H\u00ecnh s\u1ed1 1 hi\u1ec7u su\u1ea5t c\u00e1p quang<\/p>\n\n\n\n

1) T\u1ed5ng quan v\u1ec1 <\/strong>S\u1ee3i quang<\/strong> v\u00e0 C\u00e1p \u0110\u1ed3ng<\/strong><\/h2>\n\n\n\n

T\u00f4i) <\/strong>C\u00e1p quang s\u1ee3i <\/strong><\/h3>\n\n\n\n

C\u00e1p quang<\/a> truy\u1ec1n th\u00f4ng tin qua t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng thay v\u00ec \u0111i\u1ec7n. H\u01a1n n\u1eefa, n\u00f3 \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng s\u1ee3i th\u1ee7y tinh ho\u1eb7c nh\u1ef1a si\u00eau m\u1ecfng cho ph\u00e9p \u00e1nh s\u00e1ng truy\u1ec1n \u0111i tr\u00ean kho\u1ea3ng c\u00e1ch l\u1edbn v\u1edbi t\u1ed1c \u0111\u1ed9 cao. \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 l\u00fd t\u01b0\u1edfng cho internet nhanh, cu\u1ed9c g\u1ecdi video, ch\u01a1i game, thi\u1ebft b\u1ecb y t\u1ebf v\u00e0 c\u00e1p ng\u1ea7m m\u00e0 kh\u00f4ng b\u1ecb tr\u1ec5.\u00a0<\/p>\n\n\n\n

ii) C\u00e1p \u0111\u1ed3ng <\/strong><\/h3>\n\n\n\n

C\u00e1p \u0111\u1ed3ng truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n ch\u1ea1y qua d\u00e2y kim lo\u1ea1i. Ch\u00fang c\u00f3 nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1p \u0111\u1ed3ng tr\u1ee5c<\/a> (truy\u1ec1n h\u00ecnh ho\u1eb7c b\u0103ng th\u00f4ng r\u1ed9ng) v\u00e0 c\u00e1p xo\u1eafn \u0111\u00f4i (Ethernet). Th\u1eadt kh\u00f4ng may, nh\u1eefng t\u00edn hi\u1ec7u n\u00e0y b\u1ecb suy y\u1ebfu khi truy\u1ec1n \u0111i xa do b\u1ecb c\u1ea3n tr\u1edf v\u00e0 b\u1ecb c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n kh\u00e1c c\u1ea3n tr\u1edf.<\/p>\n\n\n\n

\"C\u00e1p<\/figure>\n\n\n\n

H\u00ecnh s\u1ed1 2 C\u00e1p quang v\u00e0 c\u00e1p \u0111\u1ed3ng<\/p>\n\n\n\n

2) \u01afu \u0111i\u1ec3m c\u1ee7a <\/strong>C\u00e1p quang s\u1ee3i<\/strong> Tr\u00ean c\u00e1p \u0111\u1ed3ng<\/strong><\/h2>\n\n\n\n

B\u1ea1n bi\u1ebft r\u1eb1ng ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eef li\u1ec7u. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1p quang \u0111ang gia t\u0103ng; kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1p \u0111\u1ed3ng, ch\u00fang cung c\u1ea5p kh\u1ea3 n\u0103ng truy\u1ec1n th\u00f4ng nhanh h\u01a1n, m\u1ea1nh h\u01a1n v\u00e0 an to\u00e0n h\u01a1n. V\u00e2ng! H\u00e3y \u0111\u1ec3 t\u00f4i gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao c\u00e1p quang l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n cho b\u1ea1n<\/a>.\u00a0<\/p>\n\n\n\n

i) T\u1ed1c \u0111\u1ed9 cao v\u00e0 b\u0103ng th\u00f4ng t\u0103ng l\u00ean<\/strong><\/h3>\n\n\n\n

Vi\u1ec7c truy\u1ec1n th\u00f4ng tin b\u1eb1ng c\u00e1p quang s\u1eed d\u1ee5ng xung \u00e1nh s\u00e1ng, kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1p \u0111\u1ed3ng d\u1ef1a v\u00e0o d\u00f2ng \u0111i\u1ec7n. Do \u0111\u00f3, s\u1ebd kh\u00f4ng sai khi n\u00f3i r\u1eb1ng c\u00e1p quang c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua t\u1ed1c \u0111\u1ed9 100Gbps, trong khi c\u00e1p \u0111\u1ed3ng kh\u00f3 c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 10Gbps. N\u1ebfu b\u1ea1n th\u00edch xem video \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao v\u00e0 ch\u01a1i l\u01b0u tr\u1eef \u0111\u00e1m m\u00e2y ho\u1eb7c tr\u00f2 ch\u01a1i nhi\u1ec1u ng\u01b0\u1eddi ch\u01a1i, s\u1ef1 kh\u00e1c bi\u1ec7t s\u1ebd d\u1ec5 nh\u1eadn th\u1ea5y v\u1edbi c\u00e1p quang.<\/p>\n\n\n\n

Nh\u01b0ng t\u1ed1c \u0111\u1ed9 kh\u00f4ng ph\u1ea3i l\u00e0 t\u1ea5t c\u1ea3. V\u00ed d\u1ee5, c\u00e1p quang c\u00f3 b\u0103ng th\u00f4ng l\u1edbn h\u01a1n, ngh\u0129a l\u00e0 ch\u00fang c\u00f3 th\u1ec3 truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n c\u00f9ng m\u1ed9t l\u00fac. M\u1ed9t s\u1ee3i quang \u0111\u01a1n c\u00f3 th\u1ec3 truy\u1ec1n h\u00e0ng ngh\u00ecn t\u00edn hi\u1ec7u kh\u00e1c nhau c\u00f9ng l\u00fac, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean ho\u00e0n h\u1ea3o cho c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, th\u00e0nh ph\u1ed1 th\u00f4ng minh v\u00e0 m\u1ea1ng AI. Tuy nhi\u00ean, qu\u00e1 nhi\u1ec1u thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i l\u00e0m ch\u1eadm hi\u1ec7u su\u1ea5t internet th\u00f4ng qua c\u00e1p \u0111\u1ed3ng.<\/p>\n\n\n\n

\"C\u00e1p<\/figure>\n\n\n\n

H\u00ecnh s\u1ed1 3 B\u0103ng th\u00f4ng t\u0103ng c\u01b0\u1eddng c\u1ee7a c\u00e1p quang<\/p>\n\n\n\n

ii) Kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i kho\u1ea3ng c\u00e1ch xa<\/strong><\/h3>\n\n\n\n

H\u01a1n n\u1eefa, d\u1eef li\u1ec7u ph\u1ea3i truy\u1ec1n \u0111i nh\u1eefng kho\u1ea3ng c\u00e1ch xa, m\u00e0 h\u1ea7u h\u1ebft c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ec3 \u00fd. V\u00ed d\u1ee5, n\u1ebfu ai \u0111\u00f3 \u0111ang th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi video t\u1eeb m\u1ed9t n\u01a1i kh\u00e1c tr\u00ean th\u1ebf gi\u1edbi, t\u1ed1c \u0111\u1ed9 internet s\u1ebd quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua c\u00e1p t\u1ed1t nh\u01b0 th\u1ebf n\u00e0o.<\/p>\n\n\n\n

T\u1ed1t, c\u00e1p quang<\/a> c\u00f3 th\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 100 km m\u00e0 kh\u00f4ng c\u1ea7n b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u. Tuy nhi\u00ean, c\u00e1p \u0111\u1ed3ng ch\u1ec9 m\u1ea1nh trong kho\u1ea3ng m\u1ed9t tr\u0103m m\u00e9t. \u0110i\u1ec1u n\u00e0y l\u00e0 do t\u00edn hi\u1ec7u truy\u1ec1n qua \u0111\u1ed3ng c\u00f3 \u0111i\u1ec7n tr\u1edf l\u00e0m suy y\u1ebfu t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch \u0111\u01b0\u1ee3c ph\u1ee7 s\u00f3ng. V\u00ec l\u00fd do n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1p quang cho c\u00e1p internet d\u01b0\u1edbi bi\u1ec3n, truy\u1ec1n th\u00f4ng kh\u00f4ng gian v\u00e0 m\u1ea1ng l\u01b0\u1edbi to\u00e0n c\u1ea7u.\u00a0<\/p>\n\n\n\n

iii) Kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) <\/strong><\/h3>\n\n\n\n

B\u1ea1n \u0111\u00e3 bao gi\u1edd g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng t\u1ed1c \u0111\u1ed9 internet ch\u1eadm xung quanh c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u01b0a? N\u1ebfu c\u00f3, h\u00e3y nh\u1edb r\u1eb1ng \u0111\u00e2y l\u00e0 b\u1eb1ng ch\u1ee9ng r\u00f5 r\u00e0ng cho th\u1ea5y d\u00e2y \u0111\u1ed3ng tr\u00ean internet \u0111ang b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) t\u1eeb \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n v\u00e0 radio. M\u1eb7t kh\u00e1c, c\u00e1p quang kh\u00f4ng ph\u1ea3i lo l\u1eafng nh\u01b0 v\u1eady v\u00ec ch\u00fang s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng thay v\u00ec \u0111i\u1ec7n, ngh\u0129a l\u00e0 ch\u00fang kh\u00f4ng s\u1eed d\u1ee5ng EMI.<\/p>\n\n\n\n

iv) B\u1ea3o m\u1eadt v\u00e0 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u t\u1ed1t h\u01a1n <\/strong><\/h3>\n\n\n\n

Ngo\u00e0i ra, v\u00ec l\u00fd do ri\u00eang t\u01b0, l\u1ef1a ch\u1ecdn an to\u00e0n nh\u1ea5t s\u1ebd l\u00e0 c\u00e1p quang. L\u00fd do l\u00e0 v\u00ec c\u00e1p \u0111\u1ed3ng ph\u00e1t ra t\u00edn hi\u1ec7u \u0111i\u1ec7n m\u00e0 tin t\u1eb7c c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng b\u1eaft \u0111\u01b0\u1ee3c b\u1eb1ng thi\u1ebft b\u1ecb x\u00e2m nh\u1eadp \u0111\u1eb7c bi\u1ec7t. M\u1eb7t kh\u00e1c, c\u00e1p quang kh\u00f4ng th\u1ec3 b\u1ecb hack d\u1ec5 d\u00e0ng v\u00ec kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u n\u00e0o \u0111\u01b0\u1ee3c ph\u00e1t ra \u1edf \u0111\u00f3. \u0110\u00f3 l\u00e0 l\u00fd do ch\u00ednh, b\u00ean c\u1ea1nh nhi\u1ec1u l\u00fd do kh\u00e1c, m\u00e0 c\u00e1c c\u01a1 quan ch\u00ednh ph\u1ee7, m\u1ea1ng l\u01b0\u1edbi qu\u00e2n s\u1ef1 v\u00e0 ng\u00e2n h\u00e0ng s\u1eed d\u1ee5ng c\u00e1p quang cho c\u00e1c th\u00f4ng tin li\u00ean l\u1ea1c nh\u1ea1y c\u1ea3m c\u1ee7a h\u1ecd. <\/p>\n\n\n\n

\"\u0110\u1ea3m<\/figure>\n\n\n\n

H\u00ecnh s\u1ed1 4: \u0110\u1ea3m b\u1ea3o b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u b\u1eb1ng c\u00e1p quang<\/p>\n\n\n\n

v) Tu\u1ed5i th\u1ecd v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu v\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t<\/strong><\/h3>\n\n\n\n

Ti\u1ebfp theo, n\u1ebfu ch\u00fang ta n\u00f3i v\u1ec1 tu\u1ed5i th\u1ecd, h\u00e3y nh\u1edb r\u1eb1ng tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1p \u0111\u1ed3ng b\u1ecb h\u1ea1n ch\u1ebf v\u00ec ch\u00fang ch\u1ecbu s\u1ef1 thay \u0111\u1ed5i c\u1ee7a \u0111\u1ed9 \u1ea9m, \u0103n m\u00f2n v\u00e0 nhi\u1ec7t \u0111\u1ed9 theo th\u1eddi gian. Tuy nhi\u00ean, c\u00e1p quang c\u00f3 tu\u1ed5i th\u1ecd cao h\u01a1n. V\u00ed d\u1ee5;<\/p>\n\n\n\n

C\u00e1p quang c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c n\u01b0\u1edbc, ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t v\u00e0 th\u1eadm ch\u00ed nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t t\u1eeb -40\u00b0C \u0111\u1ebfn 85\u00b0C. V\u00ec v\u1eady, n\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t lo\u1ea1i c\u00e1p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng trong nhi\u1ec1u th\u1eadp k\u1ef7 m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec, c\u00e1p quang l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p. <\/p>\n\n\n\n

vi) Nh\u1eb9 v\u00e0 ti\u1ebft ki\u1ec7m kh\u00f4ng gian<\/strong><\/h3>\n\n\n\n

B\u1ea1n c\u00f3 bi\u1ebft r\u1eb1ng c\u00e1p quang nh\u1eb9 v\u00e0 ti\u1ebft ki\u1ec7m kh\u00f4ng gian h\u01a1n c\u00e1p \u0111\u1ed3ng kh\u00f4ng? V\u00e2ng! M\u1ed9t s\u1ee3i c\u00e1p quang ti\u00eau chu\u1ea9n c\u00f3 \u0111\u1ed9 d\u00e0y \u0111\u00e1ng kinh ng\u1ea1c l\u00e0 2 mm. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1p quang v\u1eeba kh\u00edt v\u1edbi t\u01b0\u1eddng, v\u0103n ph\u00f2ng ho\u1eb7c trung t\u00e2m d\u1eef li\u1ec7u. C\u00e1c doanh nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1p quang trong c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng l\u1edbn v\u00e0 ph\u00f2ng m\u00e1y ch\u1ee7 m\u1eadt \u0111\u1ed9 cao do kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n v\u1edbi \u00edt c\u00e1p h\u01a1n. N\u1ebfu b\u1ea1n mu\u1ed1n c\u00f3 hi\u1ec7u su\u1ea5t m\u1ea1nh m\u1ebd m\u00e0 kh\u00f4ng l\u1ed9n x\u1ed9n, hi\u1ec7u su\u1ea5t c\u00e1p quang m\u00e0 kh\u00f4ng c\u1ea3n tr\u1edf t\u00ednh th\u1ea9m m\u1ef9 b\u00f3ng b\u1ea9y.<\/p>\n\n\n\n

T\u00f3m l\u1ea1i, t\u00f4i ph\u1ea3i n\u00f3i r\u1eb1ng c\u00e1p quang \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 h\u01a1n c\u00e1p \u0111\u1ed3ng v\u00ec ch\u00fang nhanh h\u01a1n v\u00e0 m\u1ea1nh h\u01a1n. Do \u0111\u00f3, \u0111\u1ed1i v\u1edbi d\u1ecbch v\u1ee5 Internet \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3, c\u00e1p quang l\u00e0 l\u00fd t\u01b0\u1edfng.<\/p>\n\n\n\n

H\u01a1n n\u1eefa, m\u1ed9t ng\u01b0\u1eddi d\u00f9ng Qoura, Hermione Menelaus, l\u00e0 m\u1ed9t qu\u1ea3n l\u00fd t\u00e0i kho\u1ea3n am hi\u1ec3u c\u00f4ng ngh\u1ec7, c\u0169ng chia s\u1ebb quan \u0111i\u1ec3m t\u01b0\u01a1ng t\u1ef1 v\u1ec1 l\u00fd do t\u1ea1i sao ch\u00fang ta ph\u1ea3i \u01b0u ti\u00ean c\u00e1p quang h\u01a1n c\u00e1p \u0111\u1ed3ng \u0111\u1ec3 k\u1ebft n\u1ed1i internet.\u00a0<\/p>\n\n\n\n

\"quora\"\/<\/figure>\n\n\n\n

3) Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1p quang so v\u1edbi c\u00e1p \u0111\u1ed3ng<\/strong><\/h2>\n\n\n\n

C\u00e1p quang<\/a> c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111\u1ed9 tin c\u1eady, nh\u01b0ng ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 kh\u00f4ng c\u00f3 l\u1ed7i. C\u00e1p \u0111\u1ed3ng v\u1eabn gi\u1eef m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m so v\u1edbi c\u00e1p quang. V\u00ec v\u1eady, ch\u00fang ta h\u00e3y xem x\u00e9t nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3.<\/p>\n\n\n\n

i) Chi ph\u00ed ban \u0111\u1ea7u cao h\u01a1n <\/strong><\/h3>\n\n\n\n

C\u00e1p quang c\u00f3 gi\u00e1 cao h\u01a1n c\u00e1p \u0111\u1ed3ng. M\u1ed9t \u0111o\u1ea1n c\u00e1p quang d\u00e0i 1 m\u00e9t c\u00f3 th\u1ec3 khi\u1ebfn b\u1ea1n m\u1ea5t $1-$5, trong khi b\u1ea1n c\u00f3 th\u1ec3 mua c\u00e1p \u0111\u1ed3ng v\u1edbi gi\u00e1 d\u01b0\u1edbi m\u1ed9t \u0111\u00f4 la. H\u01a1n n\u1eefa, c\u00e1c thi\u1ebft b\u1ecb b\u1ed5 sung c\u1ea7n thi\u1ebft \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y ph\u00e1t v\u00e0 m\u00e1y thu quang, l\u00e0m t\u0103ng th\u00eam gi\u00e1. <\/p>\n\n\n\n

N\u1ebfu b\u1ea1n mu\u1ed1n n\u00e2ng c\u1ea5p t\u1eeb c\u00e1p \u0111\u1ed3ng l\u00ean c\u00e1p quang, c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i thay th\u1ebf c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn m\u1ea1ng c\u0169. S\u1ef1 thay \u0111\u1ed5i n\u00e0y t\u1ed1n r\u1ea5t nhi\u1ec1u ti\u1ec1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p nh\u1ecf v\u00e0 h\u1ed9 gia \u0111\u00ecnh \u0111\u00e3 c\u00f3 thi\u1ebft l\u1eadp s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng m\u1ea1ng c\u00e1p \u0111\u1ed3ng. <\/p>\n\n\n\n

ii) \u0110\u1ed9 gi\u00f2n v\u00e0 \u0111\u1ed9 nh\u1ea1y c\u1ea3m khi u\u1ed1n cong<\/strong><\/h3>\n\n\n\n

C\u00e1p quang r\u1ea5t d\u1ec5 v\u1ee1. C\u00e1c s\u1ee3i th\u1ee7y tinh ho\u1eb7c nh\u1ef1a b\u00ean trong c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 b\u1ecb \u0111\u1ee9t n\u1ebfu b\u1ecb k\u00e9o c\u0103ng qu\u00e1 m\u1ee9c, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi u\u1ed1n cong t\u0129nh d\u01b0\u1edbi 30 mm. Tuy nhi\u00ean, c\u00e1p \u0111\u1ed3ng r\u1ea5t ch\u1eafc ch\u1eafn. Ch\u00fang c\u00f3 th\u1ec3 b\u1ecb u\u1ed1n cong v\u00e0 xo\u1eafn, th\u1eadm ch\u00ed c\u00f3 th\u1ec3 b\u1ecb gi\u1eabm l\u00ean m\u00e0 kh\u00f4ng b\u1ecb \u0111au. Do \u0111\u00f3, \u0111\u1ed9 ch\u1eafc ch\u1eafn c\u1ee7a c\u00e1p cho ph\u00e9p d\u1ec5 d\u00e0ng x\u1eed l\u00fd h\u01a1n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng h\u00e0ng ng\u00e0y.<\/p>\n\n\n\n

Khi l\u1ef1a ch\u1ecdn \u0111\u1eb7t c\u00e1p \u1edf nh\u1eefng kh\u00f4ng gian n\u00e9n, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t ho\u1eb7c b\u00ean trong t\u01b0\u1eddng, c\u00e1p \u0111\u1ed3ng th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady h\u01a1n v\u00ec ch\u00fang kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng nhi\u1ec1u nh\u01b0 c\u00e1p quang.<\/p>\n\n\n\n

iii) L\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec ph\u1ee9c t\u1ea1p<\/strong><\/h3>\n\n\n\n

H\u01a1n n\u1eefa, c\u00e1p quang \u0111\u00f2i h\u1ecfi c\u00e1c k\u1ef9 n\u0103ng c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng \u0111\u1ec3 l\u1eafp \u0111\u1eb7t. Quy tr\u00ecnh ph\u1ee9c t\u1ea1p nh\u1ea5t l\u00e0 n\u1ed1i ho\u1eb7c k\u1ebft n\u1ed1i hai s\u1ee3i c\u00e1p quang. B\u1ea1n bi\u1ebft \u0111\u1ea5y, c\u1ea7n c\u00f3 m\u00e1y h\u00e0n s\u1ee3i quang cho m\u1ee5c \u0111\u00edch n\u00e0y, c\u00f3 th\u1ec3 t\u1ed1n t\u1eeb 5.000 \u0111\u1ebfn 10.000 \u0111\u00f4 la. <\/p>\n\n\n\n

M\u1eb7t kh\u00e1c, c\u00e1p \u0111\u1ed3ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng c\u1eaft, n\u1ed1i v\u00e0 s\u1eeda ch\u1eefa b\u1eb1ng thi\u1ebft b\u1ecb th\u00f4 s\u01a1. N\u1ebfu c\u00e1p \u0111\u1ed3ng b\u1ecb h\u1ecfng, vi\u1ec7c s\u1eeda ch\u1eefa tr\u1edf th\u00e0nh m\u1ed9t quy tr\u00ecnh kh\u00f4ng r\u1eafc r\u1ed1i. Tuy nhi\u00ean, khi x\u1eed l\u00fd c\u00e1p quang, ng\u01b0\u1eddi ta th\u01b0\u1eddng c\u1ea7n \u0111\u1ebfn m\u1ed9t chuy\u00ean gia. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng chi ph\u00ed b\u1ea3o tr\u00ec v\u00e0 khi\u1ebfn vi\u1ec7c n\u00e0y tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<\/p>\n\n\n\n

Do \u0111\u00f3, so v\u1edbi th\u1ee3 l\u1eafp \u0111\u1eb7t c\u00e1p \u0111\u1ed3ng, th\u1ee3 k\u1ef9 thu\u1eadt c\u00e1p quang c\u00f3 \u00edt th\u1eddi gian h\u01a1n nhi\u1ec1u. \u0110i\u1ec1u n\u00e0y g\u00e2y nguy hi\u1ec3m cho hi\u1ec7u qu\u1ea3 ho\u00e0n th\u00e0nh c\u00f4ng vi\u1ec7c b\u1ea3o tr\u00ec \u0111\u1ec3 \u0111\u00e1p \u1ee9ng t\u1ed1t h\u01a1n nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng. <\/p>\n\n\n\n

\"L\u1eafp<\/figure>\n\n\n\n

H\u00ecnh s\u1ed1 5 L\u1eafp \u0111\u1eb7t ph\u1ee9c h\u1ee3p c\u00e1p quang<\/p>\n\n\n\n

iv) Kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i \u0111i\u1ec7n h\u1ea1n ch\u1ebf<\/strong><\/h3>\n\n\n\n

Cu\u1ed1i c\u00f9ng, trong tr\u01b0\u1eddng h\u1ee3p c\u00e1p \u0111\u1ed3ng, c\u00f3 th\u1ec3 truy\u1ec1n th\u00f4ng tin v\u00e0 \u0111i\u1ec7n n\u0103ng c\u00f9ng l\u00fac. Do \u0111\u00f3, d\u00e2y \u0111\u1ed3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng Power over Ethernet (PoE), cung c\u1ea5p \u0111i\u1ec7n cho camera an ninh v\u00e0 \u0111i\u1ec3m truy c\u1eadp Wi-Fi m\u00e0 kh\u00f4ng c\u1ea7n d\u00e2y ngu\u1ed3n b\u1ed5 sung. <\/p>\n\n\n\n

M\u1eb7t kh\u00e1c, \u0111i\u1ec7n kh\u00f4ng th\u1ec3 truy\u1ec1n qua s\u1ee3i quang. Do \u0111\u00f3, thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n s\u1ebd c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1eb7t g\u1ea7n \u1ed5 c\u1eafm \u0111i\u1ec7n h\u01a1n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 kh\u00f4ng th\u1ecfa \u0111\u00e1ng trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p. V\u00ed d\u1ee5, c\u1ea5u h\u00ecnh camera an ninh b\u1eb1ng k\u1ebft n\u1ed1i c\u00e1p quang \u0111\u00f2i h\u1ecfi ph\u1ea3i ch\u1ea1y c\u00e1p ngu\u1ed3n c\u00f9ng v\u1edbi c\u00e1p quang.<\/p>\n\n\n\n

4) L\u1eddi cu\u1ed1i c\u00f9ng<\/strong><\/h2>\n\n\n\n

Sau t\u1ea5t c\u1ea3 c\u00e1c th\u1ea3o lu\u1eadn \u1edf tr\u00ean, hy v\u1ecdng l\u00e0 b\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1p quang v\u00e0 c\u00e1p \u0111\u1ed3ng. V\u00ec v\u1eady, b\u00e2y gi\u1edd s\u1ef1 l\u1ef1a ch\u1ecdn l\u00e0 t\u00f9y thu\u1ed9c v\u00e0o b\u1ea1n. N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm internet t\u1ed1c \u0111\u1ed9 c\u1ef1c cao, truy\u1ec1n th\u00f4ng t\u1ea7m xa ho\u1eb7c m\u1ea1ng kh\u00f4ng c\u1ea7n n\u00e2ng c\u1ea5p trong th\u1eddi gian t\u1edbi, th\u00ec c\u00e1p quang l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi. Nh\u01b0ng n\u1ebfu b\u1ea1n c\u1ea7n thi\u1ebft l\u1eadp t\u1ea7m ng\u1eafn ti\u1ebft ki\u1ec7m ho\u1eb7c c\u1ea5u h\u00ecnh h\u1ed7 tr\u1ee3 ngu\u1ed3n \u0111i\u1ec7n, th\u00ec c\u00e1p \u0111\u1ed3ng v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi.<\/p>\n\n\n\n

H\u00e0ng n\u0103m, ng\u00e0y c\u00e0ng c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn c\u00e1p quang. V\u1edbi c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn, gi\u00e1 ch\u1eafc ch\u1eafn s\u1ebd gi\u1ea3m, gi\u00fap m\u1ecdi ng\u01b0\u1eddi d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n. N\u1ebfu b\u1ea1n \u0111ang mu\u1ed1n chuy\u1ec3n sang c\u00e1p quang, th\u00ec Dekam Fiber l\u00e0 n\u01a1i t\u1ed1t nh\u1ea5t \u0111\u1ec3 mua c\u00e1p ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 chuy\u00ean nghi\u1ec7p. V\u00ec v\u1eady, y\u00eau c\u1ea7u b\u00e1o gi\u00e1 ngay l\u1eadp t\u1ee9c<\/a> H\u00f4m nay!<\/p>","protected":false},"excerpt":{"rendered":"

B\u1ea1n c\u00f3 mu\u1ed1n internet nhanh nh\u01b0 ch\u1edbp m\u00e0 kh\u00f4ng b\u1ecb tr\u1ec5 kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec c\u00e1p quang ch\u00ednh l\u00e0 th\u1ee9 b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm. Ch\u00fang truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng so v\u1edbi c\u00e1p \u0111\u1ed3ng ph\u1ea3i v\u1eadt l\u1ed9n tr\u00ean nh\u1eefng kho\u1ea3ng c\u00e1ch xa. M\u1eb7c d\u00f9 c\u00e1p quang nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n, nh\u01b0ng ch\u00fang c\u0169ng c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m v\u00e0 [\u2026]<\/p>","protected":false},"author":1,"featured_media":18638,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Advantages and Disadvantages of Fiber Optic Cable - DEKAM","_seopress_titles_desc":"","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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":""},"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":[1],"tags":[],"class_list":["post-18635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18635","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/comments?post=18635"}],"version-history":[{"count":5,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18635\/revisions"}],"predecessor-version":[{"id":18645,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18635\/revisions\/18645"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/media\/18638"}],"wp:attachment":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/media?parent=18635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/categories?post=18635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/tags?post=18635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}