VIPA IM 253 DP Series, Manual, Page: 84 / 100

Chapter 3 Deployment IM 253DP Manual VIPA System 200V
3-44 HB97E - IM - RE_253-xDPxx - Rev. 12/44
The VIPA fiber optic PROFIBUS coupler employs dual core plastic fiber
optic cable as the communication medium. Please keep the following points
in mind when you connect your PROFIBUS FO coupler: predecessor and
successor must always be connected by means of a dual core FO cable.
The VIPA bus coupler carries 4 FO connectors. The communication direc-
tion is defined by the color of the connector (dark: receive line, light: send
line).
When the bus has been turned on, you recognize the receive line by the
light, while the darker line is the send line.
The connectors Hewlett Packard (HP) are available in two different
versions:
FO connector with crimp-type assembly
FO connector without crimp-type assembly
FO connector with crimp-type assembly HP order no.: HFBR-4506 (gray)
HFBR-4506B (black)
Connection for predecessor
reception
transmission
Connection for successor
reception
transmission
7m
m
Pressring
Crimp
pressring here
with crimping tool
Cut protruding fiber using a
knife to leave app. 1.5 mm.
Polish the ends to a flat
surface using the HP polishing
set
1,5 mm
Advantages: polarity protection.
You can only install the connector so
that the side of the connector shown
here faces to the right.
Disadvantages: special tool required
You require a special crimping tool from
Hewlett Packard (HP order no.: HFBR-
4597) for the installation of the press
ring required for strain relief.
Connector installation
You install the connector by first
pushing the press-ring onto the dual
core FO cable. Separate the two cores
for a distance of app. 5cm. Use a
stripper to remove the protection cover
for app. 7mm.
Insert the two cores into the plug so
that the ends of the fiber optic cable
protrude at the front. Keep an eye on
the polarity of the cores (s.a.).
Push the press-ring onto the plug and
crimp the ring by means of the crimp
tool. The description of how to trim and
polish of the ends of the FO cores is
identical to the 2
nd
connector type
shown below.
Fiber optic cabling
under PROFIBUS