New models of radio bridges Siklu EtherHaul 2500 - transfer more, transfer further

It is no secret that the needs of users and applications for bandwidth are growing.
But there are no frequencies on the air, on the contrary, every year and each new frequency assignment of free frequencies remains ever less.

That is why more than 5,000 spans of Siklu radio bridges, E-band Gigabit solutions (70, 80 GHz), which do not require assignments of frequency nominal values ​​and payment for them, are already successfully operated in Russia.

Today we are happy to tell you about the new model Siklu EtherHul 2500, offering twice the capacity and one and a half times longer distances than the 1200 series we are used to.

So, what's new for us is the EtherHaul 2500, a solution that, in general, is new for the Russian market, but for almost a year now it has been tested in key customers.
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In the first place, of course, this is a large radio channel capacity.

And the big one immediately doubled in comparison with the previous flagship 1200F and 5.5 times in comparison with the most popular in Russia model 1200TL (2 Gbit duplex versus 700 Mbit simplex).

The second is a high transmitter power and better sensitivity, and, accordingly, a large communication range with the same accessibility, or high speed and availability at the same range.

In the new model range, SIKLU switched from the practice of releasing a separate EXT and 1-ft model line (without the possibility of installing an external antenna) in favor of systems with a universal mount that allows you to connect an antenna of any type: 16, 31, 60 cm

Accordingly, the articles for Odu now look like this:

The antenna unit itself with a universal footprint EH-2500F-ODU-H-EXT and a paired EH-2500F-ODU-L-EXT. Antennas at 30 EH-ANT-1ft EtherHaul 1 ft. antenna and 60 cm EH-ANT-2ft EtherHaul 2 ft. antenna. Mounting kits: EH-MK-1ft EtherHaul Mounting Kit for 1 ft. Antenna and EH-MK-2ft EtherHaul Mounting Kit for 2 ft Antenna.

This is extremely positive news for those who use Siklu as a temporary communication channel to connect new territories - there is no longer any need to keep the equipment of different items in the warehouse for different ranges, just enough to have the necessary antennas.

We give a comparison of equipment lines.

Model	Multiplexing	Capacity	Power	Maximum sensitivity	Ports
1200	Tdd	Gigabit simplex	5 dbm	-86	2 combo ports, each works as copper or sfp
1200F	Fdd	Gigabit duplex	8 dbm	-89	4 independent ports
2500F	Fdd	2 gigabit duplex	19 dbm	-89	4 independent ports

Recommended manufacturer range of links aggregation level for the rain region E



If we talk about less demanding access level channels, where availability of 99.9% is acceptable, then we are talking about 7 km:



However, using the EMM channel redundancy technology, you can build much longer links.

EMM (a simplified version of the ERP implementation ) allows in the case of high attenuation to seamlessly switch traffic to backup low-frequency, rain-resistant, but also relatively low-performing communication channel, while ensuring high channel availability for the most priority traffic.

In this case, both the classic solutions of the range of 5-6.4 GHz and the novelty - AirFiber 11 about which we will soon write a separate material can act as a backup channel.



We combine the best: high performance of the E band and high availability of the channels of the classic bands.


Traffic switching circuit, or the answer to the question - why does Siklu need so many cable interfaces?




Capacity and ping when switching the 1200T to the backup low-frequency radio channel and back
A calculator placed on the manufacturer's website allows you to compare the communication range of various devices, we give a comparison at a distance of 5 km with 2 ft antennas for the Moscow region.
By the way, the link range calculator has recently been updated, now you can select a channel calculation for various equipment models and see for yourself the advantages of new models.

EH1200T:



EH1200F:



EH2500:



The difference, as they say, on the face.

Now the most interesting thing is to move from theory to practice. 8 km link, successfully operated by one of the largest operators in Tatarstan for several months.
Range:



Somewhere far away there is Siklu ... which means 2 Gbps connectivity

Thus, we see that the practical availability of the link even exceeds the calculated one. With new models of Siklu equipment, it is quite possible to talk about 5 km or more communication channels without waiting for receiving frequencies and capacities in Gbit and more.


We hope that more and more communication towers in Russia will look like this. And in the next article about Siklu we will descend from communication towers to the streets of the city and consider a new compact and inexpensive product Siklu for communication in urban areas at a distance of 800-1100 meters.