Karakteristik Optik
Dari semua perbedaan antara multimode & serat singlemode, the most fundamental differences are the
size of the fiber’s core and the associated attenuation or loss and bandwidth of the fiber. The smaller the
core diameter, semakin tinggi bandwidth serat dan semakin rendah redaman (kerugian dalam dB per kilometer).
Atenuasi dan bandwidth serat juga bergantung pada panjang gelombang.
Singlemode was for high-speed long-distance transmission and multimode (in either the 50 µm or 62.5 µm
core diameters) was used for lower speed short distance applications. Multimode 50 µm fiber had a lower
cost and higher modal bandwidth than multimode 62.5 µm core fiber. Bandwidth is a measurement of the
data-carrying capacity of the fiber. A higher bandwidth fiber carries more data. See table below.
| Jenis serat: | Maks. redaman (dB/km) | Peluncuran Minimum Overfill Bandwidth (Mhz.km) | Min.Gigabit Ethernet Jarak Tautan (m) | ||||||
| Gigabit | 10Gigabit | ||||||||
| 850nm | 1300nm | 1310nm | 1550nm | 850nm | 1300nm | 850nm | 1300nm | 850nnm | |
| OM1 62,5/125µm | 2.7 | 0.6 | – | – | 500 | 600 | 275 | 550 | – |
| OM2 50/125µm | 2.3 | 0.6 | – | – | 500 | 500 | 750 | 600 | 150 |
| OM3 50/125µm | 2.3 | 0.6 | – | – | 1500 | 500 | 1000 | 600 | 300 |
| OM4 50/125µm | 2.3 | 0.6 | – | – | 3500 | 500 | 1100 | 600 | 550 |
| G652D 9/125µm | – | – | 0.30 | 0.18 | – | – | – | – | – |
| G657A 9/125µm | – | – | 0,35 | 0.21 | – | – | – | – | – |
ANSI/TIA/EIA-598-B Standard Serat Cbau Csyair pujian
| Nomor Serat | Serat Warna | Nomor Serat | Serat Warna |
| Serat 1 | Biru | Serat 7 | Merah |
| Serat 2 | Oranye | Serat 8 | Hitam |
| Serat 3 | Hijau | Serat 9 | Kuning |
| Serat 4 | Cokelat | Serat 10 | Ungu |
| Serat 5 | Abu-abu | Serat 11 | Merah Jambu |
| Serat 6 | Putih | Serat 12 | air |
| Serat 13 dan lebih tinggi Kode warna diulang dengan menambahkan garis hitam atau tanda hubung | |||
| Catatan: Warna Tabung Serat akan diikuti dengan urutan yang sama. | |||
