IV306E Rev. 004 Siel S.p.A.
Page 21 of 37 + 12 Tables, 14 F FR
Issued date: 2014-03-24
Description of communication fibre optics
This board also includes three fibre optic connectors.
Fibre optics are an ideal data transmission media and ensure data can be carried safely, even over long
distances in environments with a high level of electrical interference (Industrial applications, close
proximity to radio transmitters, signal cables cannot be separated from power cables in system, etc.)
For more details about fibre optic transmission, read the following paragraph (its omission does not
prevent understanding the rest of the instruction manual).
Detailed description of fibre optics connections.
If data must travel further than the maximum distance (approximately 100m), Siel S.p.A. can provide special
repeaters/amplifiers.
The IC11 connector (central connector in Figure 6) is dedicated to interfacing with a remote dedicated mimic panel, which
allows the display of the main parameters of the UPS on a small console, even without using a personal computer.
Connectors IC8 and IC9 are used for connection through fibre optics to a personal computer, which has specific software
installed that can graphically display all signals and measurements sent by the UPS, keep an accurate history file of events,
and control the UPS from the personal computer.
When ordering this software, it is also necessary to purchase its fibre optics and the fibre optics/RS232 converter (available
from Siel S.p.A.), which must be installed in close proximity to the personal computer.
Through only one personal computer, where the OCSystem3 software is installed, it is possible to simultaneously monitor
all UPSs connected in parallel.
Customers wishing to use their own software to capture the signals and measurements provided by the UPS should send a
written request to Siel S.p.A., who will then authorise and issue detailed specifications on the communication protocol.
Also in this case, customers should remember to order the fibre optics/RS232 converter.
The remote mimic panel and the personal computer monitoring software program can also be used simultaneously.
The connection is made by simply inserting the optical fibre's mobile male connector in the female connectors on the board
until they click together, which indicates that a proper connection has been made.
The IC9 connector receives commands from the personal computer, whilst the IC8 connector transmits data to the personal
computer.
The following basic precautions must be taken when connecting and wiring the system:
1 – Always match the colours of the mobile and fixed connectors to avoid confusing the receiver and transmitter with
consequent transmission failure.
2) Do not confuse the remote mimic panel connector (IC11) with the personal computer diagnosis connectors (IC8 and
IC9).
3 – When laying the fibre optics, avoid creating bends with radii below 10 cm; in such cases the reflection of light inside
the fibre no longer occurs properly and communication could break down.
If no mechanical damage was caused while bending the cable, the connection can be restored simply by making a "gentler"
curve.
The customer interface board is placed at the bottom right area behind the front air grating.
Even though there are no dangerous potentials on the customer interface board, it is necessary to make all connections with
the UPS switched off, and with the mains and the battery disconnected, because the compartment in which the board is
located contains live conductors.
