https://www.systerra.de/GBX25.html
NETernity GBX24 is a fully managed (Layer 2/3) Gigabit Ethernet switch available in both air- and conduction-cooled formats offering full wire speed performance with minimal latency on all ports simultaneously ...
https://www.systerra.de/RM921NB.html
NETernity™ RM921NB is a family of Layer 2/3+ fully managed Ethernet embedded switches offering full IPv6 wire speed switching and routing, and full management capabilities with 12 or 24 front I/O Gigabit Ethernet ports...
https://www.systerra.de/RM984RC.html
NETernity™ RM984RC is an economical 6U VME unmanaged Layer-2 10/100BaseTX Ethernet switch designed to meet the needs of a wide range of applications such as mil/aero, commercial, and industrial systems...
https://www.systerra.de/downloads.php?dokument=6274
https://www.systerra.de/downloads.php?dokument=6270
https://www.systerra.de/downloads.php?dokument=5563
https://www.systerra.de/downloads.php?dokument=6271