Siemens SCALANCE X-300 Series Operating Instructions Manual page 208

Technical specifications
8.9 MM900 technical specifications
Table 8-105 Permitted cable lengths (copper cable - gigabit Ethernet)
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 table
2)
Fast Ethernet.
Fiber-optic cables
Table 8-106 Permitted cable lengths (fiber-optic cable - Fast Ethernet)
Media module Fiber-optic cable type
MM991-2 50/125 µm
(BFOC) multimode fiber
62.5/125 µm multi‐
mode fiber
MM991-2FM 50/125 µm
(BFOC) multimode fiber
62.5/125 µm multi‐
mode fiber
MM991-2LD 9/125 µm
(BFOC) 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
MM991-2LH+ 9/125 µm
(SC) single mode fiber
208
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 with
1) 2)
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
70 km
Attenuation
≤1 dB/km at 1300 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 1300 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 1300 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 1300 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 1300 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 1300 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
≤0.28 dB/km at 1550 nm; maximum insertion loss 0.5 dB; 26 dB
max. permitted FO cable attenuation at 2 dB link power margin,
minimum cable attenuation 3 dB
Operating Instructions, 11/2019, A5E01113043-24
Permitted cable length
0 to 90 m
0 to 60 m
+ 10 m TP cord
0 to 90 m
+ 10 m TP cord
SCALANCE X-300