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Stageboxes & Fibre Links
The C-SB Stagebox utilises fibre-optic connection between itself and the Centuri Processor. This has the
a
dvantages of noise immunity, reduced weight and bulk of wiring and the elimination of earth loops. A separate
control signal (for gain, pad, filter etc.) is carried over the SSL ethernet network. This control signal can be
converted into fibre optic for runs longer than 100m.
T
he standard connectors for the fibre links are duplex LC at both the Centuri and the Stagebox ends. A 2m lead
is provided as standard with each stagebox.
When Stageboxes are specified, it is recommended that a 10/100 ethernet hub/switch is installed so as to provide
isolation for the remote network connection(s). A 1U rack mounting 16-port switch is available as a cost option.
Longer fibre cables and/or ruggedised OB cable using adaptor panels/patch panels are options. SSL is able to
provide a range of fibre solutions although the facility may prefer to provide its own fibre installation. Details of
fibre installation options should be discussed with SSL’s Project Engineering Department at the time of order.
For location of Stageboxes at distances of greater than 100m from the Centuri rack the ethernet control cable will
have to be buffered – using an ethernet repeater/switch – or converted to fibre.
The maximum length for a multimode Fibre Link is 550m, and for singlemode is 2km.
The Centuri Routing card can be fitted with up to eight Fibrelinks. These are arranged in four groups of two
labelled as ‘Port 1’ to Port 4’.
Note: Each Port on the Routing/Link card actually provides up to four separate connections (two pairs).
Connections numbered 1 and 3 are for the primary Fibre Link and numbers 2 and 4 are reserved for the optional
redundant links.
Remote stageboxes may be connected to the Centuri core in any order.
Installation Wiring
Section 5
Page 39