Fiber Standards

Notes:

1. A worst-case source coupling loss of 4.7 dB is used for 50 µm relative to µm for LED based applications. This coupling loss is based on the theoretical maximum coupling loss. 10BA 515i88f SE-FL specifies 5.7 dB maximum coupling loss into 50 µm fiber. Token Ring, FDDI (Low Cost), FDDI and 100BASE-FX specify 5.0 dB maximum coupling loss into 50 µm fiber.
2. NST (non-standard) entries indicate where the standard does not specify support for the media, but where equipment is commonly available to convert the native application signals to a form compatible with the non-native media.
3. Application specifies 62.5 µm fiber with 200 MHz-km bandwidth at 850 nm.
4. 300 meter capability specified in Fibre Channel update, FC-PH-2.
5. For 62.5 µm fiber, IEEE specifies 220 meters for 160.500 MHz-km modal bandwidth and 275 meters for fiber with 200.500 MHz-km modal bandwidth.
6. For 50 µm fiber IEEE specifies 500 meters for 400/400 MHz-km modal bandwidth and 550 for 500/500 MHz-km modal bandwidth
7. Power budget and distance capability depends on classification option of transmitter and receiver. Distance specified is for the highest power budget option.
8. This is a laser-based application. When not so noted, multimode applications are LED-based.
9. Maximum channel attenuation based on channel insertion loss plus unallocated margin from IEEE 802.3z.

TIA / EIA-568-B.1 and ISO / IEC 11801 Attenuation Limits:

TIA / EIA-568-B.1

inside plant cable

ISO / IEC 11801

inside plant cable