User Manual

173
MN024-08
the interconnect link is a set of
modules which allows to expand the
system by connecting a second
Britecell Plus subrack station to the
main one, at a distance of up to 20
km. By using more interconnect links at the main station, more Britecell Plus
stations could be connected to the main one, in a star configuration.
Each interconnect link (i-link) is made up by a master-side and by a slave-
side. Both the master side and the slave side are composed by a receiver
module and by a transmitter module (please refer to fig. 5.26, 5.27): the
transmitter modules are identified by the code TDTX, while the receiver
module is identified as TMRX at the master side and as TSRX at the slave side.
The interconnect link is available both in simple version (identified as TILx-HL)
and in WDM version (identified as TILx-HLW). A WDM i-link exploits the same
fibre to transmit both from master to slave and vice-versa (please refer to fig.
5.28b), while the simple link uses a dedicate fiber for the transmission from
master to slave, and a different one for the transmission from slave to master
(please refer to fig. 5.28a).
The following four section will describe in details the i-link modules both in
WDM and not-WDM version.
t
TILx
(intro)
Module name:
Interconnect link
TILx-HL
TILx-HL
W
(a)
(
b
)
(a)
(
b
)
Fig. 5.26: i-link modules: (a)
master side; (b) slave-side.
Fig. 5.27: WDM i-link modules:
(a) master side; (b) slave-side.
5.11.1. Introduction