IBM AT-FS202SC/FS4 Manuel D’Utilisation

Technical Specifications

24

Table 11  Fiber Optic Loss Specification (Benchmark)

Figure 5 shows the pin assignments of the RJ-45 connector.

Figure 5  RJ-45 Pin Assignments

AT-FS202SC/
FS3

9/125 
SMF

33.00 dB

35.00 dB

15 km (9.4 
mi)

75 km (46 mi)

AT-FS202SC/
FS4

9/125 
SMF

34.0

35.5 dB

40 km 
(24.8 mi)

100 km (62 
mi)

1. MMF = Multimode Fiber / SMF = Single-mode 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.

1. MMF = Multimode Fiber / SMF = Single-mode Fiber.

MMF

50/125 
microns

1310 nm

1.00 dB/
km

1.50 dB/
km

400 Mhz-
km

62.5/125 
microns

1310 nm

1.00 dB/
km

1.50 dB/
km

500 Mhz-
km

SMF

9/125 
microns

1310 nm

0.40 dB/
km

1.00 dB/
km

Not 
applicable

SMF

9/125

1550 nm

0.30 dB/
km

0.75 dB/
km

Not 
applicable