Description
B+B SmartWorx BB-ESR902
Technical Specifications Multiple Ethernet ports including WAN and LAN interfaces; support for Gigabit Ethernet transmission rate; hardware accelerated VPN encryption; built-in stateful firewall; industrial grade wide power input 9V DC to 36V DC; operating ambient temperature range -40°C to +70°C; DIN rail mounting design; IP30 enclosure protection rating; support for Modbus TCP, EtherNet/IP and PROFINET protocol filtering; serial port expansion option; real-time clock with backup battery.
Functional Features Isolate the factory operational network from the corporate information network through firewall access control rules. Establish encrypted VPN tunnels for secure remote maintenance access to field PLC and DCS equipment. Perform protocol filtering and traffic management for industrial Ethernet communication. Support NAT address translation for internal field device IP mapping. Run system log recording for network access events and alarm messages. Support firmware upgrade and remote configuration management. Provide link status diagnostic information via LED indicators. Support redundant power input to eliminate single power point failure.
Application Scenarios Factory remote machine maintenance, energy management system network gateway, water treatment plant network isolation, packaging production line remote troubleshooting, distributed industrial site secure data transmission.
Performance Parameters Hardware encryption engine maintains stable throughput under VPN transmission; low communication latency for industrial real-time packets; high electromagnetic compatibility for harsh factory environments; continuous stable operation under wide temperature fluctuation.
Material Composition Main printed circuit board uses FR-4 flame-retardant multilayer substrate; main network processor is industrial-grade communication chip; isolation transformers are integrated on each Ethernet channel; enclosure adopts flame-retardant aluminum alloy; terminal block contacts are nickel-plated copper alloy; internal backup battery is lithium button cell; mounting accessories are galvanized steel.
Structural Characteristics Compact rectangular metal housing designed for DIN rail installation. Front panel carries LED indicators for power, link status, VPN connection and fault alarm. Side terminal blocks accept DC power wiring. Ethernet RJ45 connectors locate on the front panel. Internal layout separates power circuit, network processing circuit and storage components. Metal shell provides electromagnetic shielding for internal circuits.
Working Principle Data packets entering the WAN port pass through firewall rule checking first. Authorized traffic establishes encrypted VPN tunnel according to preset security policy. Valid industrial communication packets route to the LAN side field control network. All access behaviors generate log records stored in internal memory. The built-in processor dynamically manages address translation and packet filtering to prevent illegal access to field automation devices.
Installation Requirements Mount the router on standard 35mm DIN rail inside the industrial control cabinet. Connect DC power supply to the designated power terminals and verify voltage within rated range. Wire WAN port to upper-level IT network and LAN ports to field automation network. Access the web configuration interface to set firewall rules, VPN parameters and industrial protocol filtering items. Conduct network penetration test and remote access verification after configuration completion.
Precautions for Use Configure user account and complex password immediately after first power-up. Keep the cabinet door closed to prevent metal dust and corrosive gas from contacting the unit. Use shielded Ethernet cables for field network wiring. Back up configuration files before firmware upgrade. Cut off power supply before removing wiring or replacing the unit.
