Siemens SCALANCE X-300 Series Compact Operating Instructions page 66

Technical data
7.3 Cable lengths
Table 7-13 Permitted cable lengths (fiber-optic cable - gigabit)
Device variant Fiber-optic cable type Permitted cable length
X307-3, 62.5/125 µm
X308-2 multimode fiber
50/125 µm
multimode fiber
X307-3LD 9/125 µm
X308-2LD single mode fiber
X308-2LH 9/125 µm
single mode fiber
X308-2LH+ 9/125 µm
single mode fiber
X310 -
66
0 to 350 m
0 to 750 m
0 to 10 km
to 40 km
to 70 km
-
Attenuation
≤3.1 dB/km at 850 nm; 1200 MHz×km; maximum in‐
sertion loss 0.5 dB; 4.5 dB max. permitted FO cable
attenuation at 3 dB link power margin
≤2.5 dB/km at 850 nm; 1200 MHz×km; maximum in‐
sertion loss 0.5 dB; 4.5 dB max. permitted FO cable
attenuation at 3 dB link power margin
≤0.5 dB/km at 1310 nm; maximum insertion loss 0.5
dB; 6 dB max. permitted FO cable attenuation at 3 dB
link power margin
≤0.4 dB/km at 1550 nm; maximum insertion loss
0.5 dB; 18 dB max. permitted FO cable attenuation at
2 dB link power margin; minimum cable attenuation
3 dB
≤0.28 dB/km at 1550 nm; maximum insertion loss
0.5 dB; 21 dB max. permitted FO cable attenuation at
2 dB link power margin; minimum cable attenuation
8 dB
-
Compact Operating Instructions, 11/2019, A5E00982643-18
SCALANCE X-300