Siemens SCALANCE X-300 Series

Technical data
6.4 Other properties
SCALANCE X-300
Compact Operating Instructions, 05/2016, A5E00982643-14
57
Device variant
Fiber-optic cable
type
Permitted cable length
Attenuation
X310FE
-
-
-
X320-3LD FE 50/125 µm
multimode fiber
0 to 5 km ≤1 dB/km at 1310 nm; 1200 MHz×km; maximum
insertion loss 0.5 dB; 9 dB max. permitted FO cable
attenuation at 3 dB link power margin
9/125 µm
single mode fiber
0 to 26 km ≤0.5 dB/km at 1310 nm; maximum insertion loss 0.5
dB; 14 dB max. permitted FO cable attenuation at 2
dB link power margin
Table 6- 13 Permitted cable lengths (fiber-optic cable - gigabit)
Device variant
Fiber-optic cable
type
Permitted cable length
Attenuation
X307-3,
X308-2
62.5/125 µm
multimode fiber
0 to 350 m ≤3.1 dB/km at 850 nm; 1200 MHz×km; maximum
insertion loss 0.5 dB; 4.5 dB max. permitted FO
cable attenuation at 3 dB link power margin
50/125 µm
multimode fiber
0 to 750 m ≤2.5 dB/km at 850 nm; 1200 MHz×km; maximum
insertion loss 0.5 dB; 4.5 dB max. permitted FO
cable attenuation at 3 dB link power margin
X307-3LD
X308-2LD
9/125 µm
single mode fiber
0 to 10 km ≤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
X308-2LH 9/125 µm
single mode fiber
... 40 km ≤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 attenua-
tion 3 dB
X308-2LH+ 9/125 µm
single mode fiber
... 70 km ≤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 attenua-
tion 8 dB
X310 - - -
6.4
Other properties
Table 6- 14 Switching properties
Max. number of learnable addresses
8000
Aging time
30 sec
Switching technique
Store and forward
Latency
5 μs