6GK6090-0GS21-0BA1-ZA03 SIEMENS Exclusive RS900G Managed Ethernet Switch Conformal Coated Original Brand New
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The SIEMENS 6GK6090-0GS21-0BA1-ZA03 RUGGEDCOM RS900G is a utility-grade, fully managed industrial Ethernet switch designed for critical applications in harsh environments. This model features dual fiber optical Gigabit Ethernet ports and eight Fast Ethernet copper ports, ensuring reliable high-speed communication for demanding industrial systems. With 128-bit encryption and conformal coating for enhanced environmental resistance, it offers a secure and durable networking solution.
Overview
Built for mission-critical operations, the RS900G operates flawlessly under extreme conditions, from –40 °C to +85 °C. It is engineered to withstand electromagnetic interference and heavy electrical surges commonly found in industrial settings such as substations, manufacturing plants, and roadside traffic control units. The integrated DIN rail mounting and conformal coating protection extend its durability and make it ideal for long-term, maintenance-free installation.
- 10-port managed Gigabit Ethernet switch with integrated ROSTM (Rugged Operating System)
- 8 x 10/100BASE-TX RJ45 copper ports supporting industrial automation and control systems
- 2 x 1000BASE-X fiber optic ports (dual 1000LX singlemode LC 1310nm, up to 10 km range)
- 128-bit encryption for secure and reliable industrial networking
- Operating temperature range from –40 °C to +85 °C for extreme environmental conditions
- Conformal coating for enhanced resistance against dust, humidity, and corrosive environments
- DIN rail mounting for compact and reliable installation
- Power input: 24 VDC (10 – 36 VDC), supporting dual low-voltage redundancy
- Galvanized steel enclosure providing rugged protection
Design
- Managed 10-port Ethernet switch with comprehensive cybersecurity features
- Support for fixed Gigabit fiber optic or SFP (1000BASE-X) configurations
- Universal low-voltage DC inputs: 12 VDC, 24 VDC, 48 VDC with dual input redundancy
- Optional universal high-voltage input (120 V AC/DC – 230 V AC/DC)
- Fanless design for reliable, maintenance-free operation in demanding applications
- Suitable for hazardous locations with full industrial certifications
Product Link: 6GK6090-0GS21-0BA1-ZA03












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