MEN's "NL" Ethernet switch family principle is based on a wide range of configuration options (e.g., amount of Ethernet ports, fiber connections or Power over Ethernet) to easily adapt the switch to application requirements.

Flexible Concept in a Small Housing

The NL31 is a 12+2-port fully managed layer 2/3 Ethernet switch, providing a wide range of configuration options with 12 M12 Gigabit Ethernet ports. M12 connectors can be configured to be A-, D- or X-coded and combinations are also possible. The X-coded connectors are designed as push-pull and screwed variants (Harting concept). The NL31 offers two optional Ethernet fiber ports with 1000BASE-SX as standard variant. The mechanical concept is an extremely compact, high-quality aluminum housing providing high port density and ultra-high ruggedness. It is designed for wall-mounting, but mounting in a 19" rack is also an option. Product models without optional fiber ports are available in a housing with reduced height.

Performance, Security and Diagnostic Features

The 29 Gbit/s, TCAM based, store-and-forward switching matrix of the NL31 allows high-performance layer 2 switching over all connected interfaces. For easy remote management and access, layer 3 protocols, e.g., IPv4/IPv6 and DHCP, are integrated. The switch provides extended security features like SNMPv3, SSH and HTTPS. Traffic isolation (VLAN) and switching redundancy protocols (e.g., STP, RSTP, MSTP) provide safe running of the network using redundant data paths in the event of a fault. The ITU-T G.8031/G.8032 ring and linear protection switching feature set makes NL31 able to create network ring scenarios with recovery time under 50 ms.

Parameter Name	Parameter Value
Type	managed
Number of ports	12 ports
Network	gigabit Ethernet layer 2 layer 3
Mounting	19" rack standard wall integrated
Other characteristics	redundant rugged compact
Applications	for railway applications