
Configuring Networks
3-20
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Power Budget for OLM G11-1300, G12-1300 for One Point-to-Point
Link at Wavelength
λ
= 1310 nm
Attenuation on the cable
Fiber type
Attenuation
a
FOC
Cable length
L
62.5/125
µ
m
1.0 dB/km
9 km
L* a
FOC
=
9.0 dB
+
Attenuation for connectors
a
Conn
Number
+
1 dB
0
Number *
a
Conn
0 dB
Attenuation caused by splices
+
a
Spl
Number
0.2 dB
5
Number * a
Spl
1.0 dB
Attenuation of the transmission path
a
Path
=
10.0 dB
Data of the OLM/G11-1300, G12-1300 power that
can be coupled into 62.5/125
µ
m fibers
P
out, min
–17 dBm
Receiver sensitivity
Prec
, min
–29 dBm
Maximum permitted attenuation
a
max
= P
out, min
– P
rec, min
= 12 dB
Link power margin
a
max
– a
Path
= 2 dB
The transmission path can be implemented as planned.
Note
The maximum length of fiber-optic cable that can be supplied in one piece depends on the
cable type but is approximately 3 km per drum. Longer links must therefore be put together
using more than one piece of cable. To connect the sections of cable, coupling elements or
splices must be used reducing the maximum possible cable length due to their attenuation.
Summary of Contents for SIMATIC NET PROFIBUS
Page 10: ...Contents viii PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 11: ...PROFIBUS NETWORKS 1 ...
Page 26: ...PROFIBUS NETWORKS 1 16 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 241: ...A 1 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 Testing PROFIBUS A ...
Page 254: ...Testing PROFIBUS A 14 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 288: ...Installing LAN Cables C 26 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 325: ...F 1 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 Dimension Drawings F ...
Page 338: ...Dimension Drawings F 14 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 396: ...Infrared Link Modul ILM 6ZB530 3AC30 0BA1 54 Copyright by Siemens ...
Page 434: ......
Page 438: ...Contents ii PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 Contents ...
Page 450: ...Network Topology 4 4 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 458: ...Installation and Startup 5 8 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 460: ...Troubleshooting 6 2 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 464: ...Technical Specifications 7 4 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 468: ...References 9 2 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 470: ...Abbreviations 10 2 PROFIBUS Optical Bus Terminal OBT C79000 G8976 C122 02 ...
Page 478: ...References I 4 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...
Page 488: ...Glossary Glossary 8 PROFIBUS Networks SIMATIC NET 6GK1970 5CA20 0AA1 Release 2 05 2000 ...