Ragile releases industry’s first NPO switch with cold plate

Created November 11, 2021
Technologies and Products

Ragile Networks Inc., a California based open network solution provider, has released a 64*400G data centre switch, RA-BC6932-64X1-DR4, at the 2021 OCP Global Summit. Ragile says the product is the first Near-packaged Optics (NPO) switch that adopts cold plate cooling system in the industry (pictured left).

RA-BC6932-64X1-DR4 is a cloud-scale datacentre switch with NPO and cold plate cooling technology. Driven by 112Gbps SERDES based 25.6Tbps switch ASIC, the switch introduces ultra-high density 64-port 400GbE DR4 optics in only 1RU chassis by using SN-MT optic interface. The switch also provides 8 QSFP-DD form external laser source (ELS) / remote laser source (RLS) interface at front panel for co-packaged optics module laser input.

To avoid heating issues caused by the more integrated components, the switch is equipped with a cold plate cooling system to keep the high heat flux density switch ASIC and near-packaged optic modules at a low working temperature, providing high system reliability. By using a non-conductive coolant, the switch can operate safely and there is no short-circuit risk due to possible leakage. A built-in coolant micro-leak detection system also helps to improve rack level reliability.

In recent years, driven by IDC demand, the rapid increase of bandwidth and signal rate has brought huge challenges to signal transmission distance and chip power. Therefore the industry is actively exploring on-board optical (OBO) modules and co-package optical (CPO) solutions to shorten the distance between the silicon chip and the optical module as much as possible. Inspired by the OBO and CPO solutions, Ragile Networks combined the advantages of the two, and came up with its version of an NPO solution, which has been initially applied to the RA-BC6932-64X1-DR4 switch. The platform also provides hot-pluggable 1+1 redundancy power module and 3+1 redundancy cooling fan module to meet the high reliability requirement of datacentre and carrier networks.

Top view with cold plate removed. Images: Ragile Networks Inc.














“Ragile Networks is a fresh ship yet with incredibly experienced sailors”, said Ethan Gao, the CEO of Ragile, “With RA-BC6932-64X1-DR4, we hope to showcase our strong R&D capabilities, so the industry knows more about us. Meanwhile we clearly understand that this product won’t be feasible without other fellow OCP members’ generous sharing. We’re launching this NPO + cold plate switch at OCP Global Summit, sharing the details of the design also to contribute to this precious eco-system.”

For more information, visit www.ragilenetworks.com


This article was written
by Peter Dykes

Peter Dykes is a independent telecoms and technology journalist who has over that last 30 years written for a wide range of B2B publications and companies. A former BT engineer, he specialises in networks and associated support systems. He is currently Editor of Optical Connections.