New Siklu EtherHaul 2500 Radio Bridge Models - Transfer More, Transfer Further / CompTek Blog

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

That is why in Russia more than 5,000 spans of Siklu radio bridges, Gigabit E-band solutions (70, 80 GHz), which do not require frequency ratings and fees for them, have already been successfully operated.

Today we are pleased to tell you about the new Siklu EtherHaul 2500 model, which offers twice the capacity and a half times the distance than the usual 1200 series.

So, what is new for us that EtherHaul 2500 offers, the solution, as a whole, is new for the Russian market, but has been tested for key customers for almost a year now.

First of all, of course, this is a large capacity of the radio channel.

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

In the second - a large transmitter power and better sensitivity, and, accordingly, a greater communication range with the same availability, or greater speed and availability at the same range.

In the new SIKLU model range, they 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 connecting any type of antenna: 16, 31, 60 cm.

Accordingly, now the articles for Odu look like this:

The antenna unit itself with a universal seat EH-2500F-ODU-H-EXT and its paired EH-2500F-ODU-L-EXT. Antennas for 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 for connecting new territories - there is no longer any need to keep equipment of different articles for different ranges in the warehouse, just have the right antennas.

Let's compare the rulers of equipment.

Model	Multiplexing	Capacity	Power	Maximum sensitivity	Ports
1200	TDD	Gigabit simplex	5 dbm	-86	2 combo ports, each working 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

The recommended aggregation level link range for the rain region E



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



However, with the help of EMM channel redundancy technology, much longer links can be built.

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

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



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


The traffic switching scheme, or the answer to the question - why does Siklu need so many cable interfaces.




Capacity and ping when switching 1200T to the backup low-frequency radio channel and vice versa The
calculator, located on the manufacturer’s website, allows you to compare the communication range of various devices, we will compare 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 choose the channel calculation for various equipment models and see for yourself the advantages of the new models.

EH1200T:



EH1200F:



EH2500:



The difference, as they say, is on the face.

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



Somewhere far there is Siklu ... and, therefore, 2 Gbit connectivity.

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


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