Technical Specifications
38
Table 9
Fiber Optic Datalink
Table 10
Fiber Optic Loss Specification (Benchmark)
Model
Fiber
Type
1
1. MMF = Multimode Fiber / SMF = Single-mode Fiber.
Minimum
Power/Link
Budget
Minimum
Operating
Distance
2
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.
Maximum
Operating
Distance
3
3. Distance is calculated based on ideal situations without any other loss factor.
AT-FS232
50/125 MMF
13.0 dB
0
2 km (1.25 mi)
62.5/125 MMF
16.8 dB
0
2 km (1.25 mi)
AT-FS232/1
9/125 SMF
16.0 dB
0
15 km (9.4 mi)
AT-FS232/2
9/125 SMF
30.0 dB
0
40 km (25 mi)
AT-FS232/3
9/125 SMF
34.0 dB
15 km (9.4 mi)
70 km (43.4 mi)
AT-FS232/4
9/125 SMF
37.0 dB
40 km (24.8 mi)
90 km (55.8 mi)
Fiber Type
1
1. MMF = Multimode Fiber / SMF = Single-mode Fiber.
Fiber Optic
Diameter
Optical
Wavelength
Typical Loss
Factor
Bandwidth
MMF
50/125 microns
1310 nm
1.00 dB/km
400 Mhz-km
62.5/125 microns
1310 nm
1.00 dB/km
500 Mhz-km
SMF
9/125 microns
1310 nm
0.40 dB/km
N/A
