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Table 5- 11
Media module
MM992-2CUC
MM992-2CUC (C)
MM992-2CU
MM992-2M12 (C)
MM992-2VD (without
VD)
The VD mode (Variable Distance) is turned off.
1)
If the VD mode is turned on, the speed is reduced to 100 Mbps. For permitted cable lengths, see
2)
table Fast Ethernet.
Fiber-optic cables
Table 5- 12
Permitted cable lengths (fiber-optic cable - Fast Ethernet)
Media module
Fiber-optic cable type
MM991-2
50/125 µm
multimode fiber
62.5/125 µm multi-
mode fiber
MM991-2FM
50/125 µm
multimode fiber
62.5/125 µm multi-
mode fiber
MM991-2LD
9/125 µm
single mode fiber
MM991-2 (SC)
50/125 µm
multimode fiber
62.5/125 µm multi-
mode fiber
MM991-2LD
9/125 µm
(SC)
single mode fiber
SCALANCE MM900
Compact Operating Instructions, 05/2016, A5E02630805-12
Permitted cable lengths (copper cable - gigabit Ethernet)
Cable
IE FC standard cable, 4×2, 24 AWG
IE FC flexible cable, 4×2, 24 AWG
with IE FC RJ-45 Plug 180,
4x2
IE FC standard cable, 4×2, 22 AWG
1) 2)
with IE FC Outlet RJ-45
+ 10 m TP cord
IE FC flexible cable, 4×2, 22 AWG with
IE FC Outlet RJ-45
+ 10 m TP cord
Max. permitted
cable length
5 km
5 km
5 km
5 km
26 km
5 km
5 km
26 km
Attenuation
≤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
≤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
≤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
≤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
≤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
≤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
≤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
≤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
Technical data
5.3 Cable lengths
Permitted cable length
0 to 90 m
0 to 60 m
+ 10 m TP cord
0 to 90 m
+ 10 m TP cord
39
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