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Device:
(Variant)
SCALANCE
MM992-2M12 (C)
(2 x 10/100/1000
Mbps, GE M12
connector electrical,
varnished)
MM992-2VD
(2 x 10/100/1000
Mbps, RJ-45 ports
electrical with se-
curing collar)
MM992-2SFP
(2x 100/1000 Mbps,
SFP media module)
MM991-2
(2 x 100 Mbps,
BFOC ports optical,
multimode glass, up
to max. 3 km)
MM991-2FM
(2 x 100 Mbps,
BFOC port optical
(multimode, glass)
with diagnostics up
to max. 5 km)
MM991-2LD
(2 x 100 Mbps,
BFOC ports optical,
single mode glass,
up to max. 26km)
MM991-2 (SC)
(2 x 100 Mbps, SC
ports optical, multi-
mode glass, up to
max. 3 km)
MM991-2LD (SC)
(2 x 100 Mbps, SC
ports optical, single
mode glass, up to
max. 26km)
MM991-2LH+ (SC)
(2 x 100 Mbps, SC
ports optical, single
mode glass, up to
max. 70km)
MM991-2P
(2 x 100 Mbps SC
RJ ports optical for
Plastic Optical Fiber
(POF) up to max.
50 m or Polymer
Cladded Fiber
(PCF) up to max.
100 m)
MM992-2
(2 x 1000 Mbps, SC
ports optical, multi-
mode glass, up to
max. 750m)
MM992-2 (C)
(2 x 1000 Mbps, SC
ports optical, for
glass FO cable
(multimode), up to
max. 750 m, var-
nished)
SCALANCE X-300
Operating Instructions, 05/2016, A5E01113043-20
c-UL-us
c-UL-us
FM
for hazard-
ous loca-
tions
1
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Approvals, certificates, standards
C-TICK
CE
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9.8 MM900 product group
ATEX95
E1
Zone 2
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271
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