Siemens SIMATIC NET PROFIBUS Owner's Manual page 202

Passive Components for Electrical Networks
Uses
The plastic FO cable, duplex cord 6XV1821-2AN50 is intended for applications
indoors in areas with where it is subjected to little mechanical load, such as in
laboratories or within cubicles. The cable is supplied in 50 m rings. Both with OLM
connections and with integrated optical interfaces, connections up to 50 m in
length can be spanned between two nodes with this cable.
Table 7-2 Order Numbers of the Plastic FO Cable, Duplex Cord 6XV1821-2AN50
Fiber-Optic Cables
SIMATIC NET PROFIBUS Plastic Fiber Optic, Duplex Cord
I–VY2P 980/1000 150A
Plastic FO cable with two fibers, PCV jacket, without connector,
for use in areas where it is not subjected to mechanical load (for
example within a cubicle or in laboratories)
7-6
Version
Order Number
50 m ring 6XV1821-2AN50
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000