Allied-telesis AT-LMC10ST Manuale Utente Scaricare il pdf (Pagina 29)

AT-LMC10SC and AT-LMC10ST Installation Guide

Fiber Optic Loss Specifications (Benchmarks)

Table 7 Fiber Optic Datalink

Model Fiber

Type

Minimum

Power /

Link

Budget

Average

Signal

Loss

Minimum

Distance

Spec.

Maximum

Distance

Spec.

AT-LMC10SC

and

AT-LMC10ST

50/125

MMF

13.00 dB 18.70 dB 0 2 km

(1.2 mi)

62.5/125

MMF

16.80 dB 22.50 dB 0 2 km

(1.2 mi)

1. MMF = Multimode Fiber

2. The recommended minimum range is stated in all cases where the maximum transmitter output power exceeds

the receivers saturation level. This is to prevent blinding or burning out of the optical receiver on the far-end-node.

Fiber Type

1. MMF = Multimode Fiber

Fiber Optic

Diameter

(microns)

Optical

Wavelength

Typical

Loss

Factor

(dB/km)

Worst Case

Loss Factor

(dB/km)

Bandwidt

h (Mhz-

km)

MMF 50/125 850 nm 3.00 3.50 400

50/125 1310 nm 1.00 1.50 400

62.5/125 850 nm 3.00 3.75 200

62.5/125 1310 nm 1.00 1.50 500

100/140 850 nm 4.00 4.00 100

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