MegaFon has upgraded its backbone network using compact 400G transceivers of Russian production (Neoros). According to the operator's press service, the new solution allowed to increase the throughput of the pilot channel between Moscow data centers fourfold, while simultaneously reducing infrastructure creation costs sixfold.

The engineering novelty lies in the rejection of bulky and expensive DWDM transponders. Compact transceivers perform their function but are installed directly into the router. This simplifies the architecture and significantly reduces the cost of deploying high-speed communication lines.

The pilot project connected key data centers in Moscow, through which the main volume of user traffic, cloud services, and technological data passes. The next stage will be to replicate the scheme to other processing centers across the country – MegaFon's network has more than 115 of them, including recently built ones in Khabarovsk, Tver, Yekaterinburg, and St. Petersburg.

An optical transceiver is a key component of fiber-optic networks that converts electrical signals from routers and switches into optical signals for transmission over cable. The QSFP-DD 400G model from Neoros supports simultaneous data transmission at speeds up to 400 Gbit/s over 8 channels with power consumption of less than 12 W. The module is made in a compact hot-swappable form factor, designed for a range of up to 500 meters, and has a Russian origin certificate according to PP-719. Such transceivers are used by telecom operators, banks, and data centers as part of DWDM multiplexers and routers.