Diem Technologies srl - Digital & Satellite Telecommunications
Diem Technologies srl - Digital & Satellite Telecommunications


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Another Innovation in Redundancy from Terrasat Communications

IBUC “Eco-Mode” Option Overview

Our customers have described to us situations in which they require redundant IBUCs in a critical link, yet power consumption is a major consideration. These may be remote sites where there is no electrical service and they have to run off alternate power sources such as solar or generator. Another factor is the sizing of the UPS for higher power IBUC applications where the power used by the 1+1 hot standby IBUC makes it necessary to increase the UPS capacity, which drives the site expense higher.

In response we are pleased to announce the development of a “warm” standby solution we’re calling “Eco-Mode”. In our standard 1+1 redundancy system both IBUCs are operational, with one ported to the antenna and the second into a termination. What we have done with the Eco-Mode solution is made a software modification so that the SSPA in the standby IBUC is de-activated. The M&C and interface boards remain energized so that the standby IBUC intelligence is still present to make the switch in case the primary IBUC goes into alarm. Best of all, this is a no-cost option that is built into every redundant system shipping from now forward. And earlier systems can be updated to include the option with a firmware upgrade – also free of charge.

What It Does

The warm standby unit is maintained in a mode where only the M&C and interface cards are operating. The savings depend on the RF power of the unit. But consumption of the standby unit will be reduced to between 20-100W. In a redundant high power IBUC that can save 1000-1200W. Terrasat has implemented special algorithms to minimize the switching and settling time of the SSPA.

How It Works

All redundant IBUC systems ship in the standard 1+1 configuration. If our customer wants to take advantage of the Eco-Mode option, he can enable that in the M&C web interface. First, following the instructions in the Operations Manual, establish a TCP/IP link to the redundant system and open a web browser. IBUC redundancy systems are now shipping with an RJ45 Ethernet connector so there are no special connectors required. Then, the operator can enable Warm Standby on the Redundant Configuration tab of the M&C software as shown on the next page. It is simply a matter of selecting “Enable” on the Warm Standby selection box on IBUC A, the primary IBUC. IBUC B will automatically switch to the warm standby mode. No other settings are required.

On the Transmit Configuration page, no adjustments are necessary. The operator will see that IBUC B, which is in standby mode, has its transmit output automatically disabled as shown below:

On the alarm page IBUC B will show that the TX output is disabled, in red below. However, in Eco-Mode that will not be interpreted as an alarm.

In the event of an alarm on IBUC A, the M&C intelligence IBUC B will activate the switch and power up almost instantaneously.