Enabling mirroring of satellite data to remote sites in Brazil

We were asked to provide a multi-channel, single fibre, RF-linkage to a remotely located diversity site.

The client needed the ability to mirror all analog transmitted (TX) and received (RX) satellite RF signals from the customer’s main Teleport site in Hortolandia to a remote diversity backup site in Jaguariuna.

We provided our RF-over-Fiber (RFoF) Platinum series to transfer satellite signals to a mirrored teleport site in Hortolandia.

By the press of a button all satellite signals were able to be transferred to the mirror site in Jaguariuna and then they were transmitted to the satellite. RF optic performances were excellent.

Data linkage to the mid-point amplifier sites’ and remote mirror site as well as the automated fiber redundancy was also verified, by disconnecting one of the fibres. All five satellite traffic services were switched to the backup fibre.

As a result they had:

• Capability to transmit and receive toward five satellites at present with a 20 satellite growth potential in the future.
• High speed data linkage between the two sites via the same fibres.
• Capability for each of the two fibres used to carry both TX and RX for all the satellites.
• Auto switching from one fibre to the other when one fibre is down.
• Total optical loss for the two fibres used between the sites of approximately 30dB, which is equivalent to a distance of 120Km.
• To handle the problem of only two fibres with the requirement of future expansion, a 40 Channel DWDM system was used. Foxcom optical transmitters were equipped with high power DWDM lasers to support high fibre loss.
• To increase RF noise performances, two bi-directional EDFA light amplifiers were installed at mid-points. Our EDFA units are optimized for DWDM signals and enable SNMP control from the main teleport site over fibre.