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RSM-405FT CR ICP DAS Redundant Ring Switches



5-Port Real-time Redundant Ring Switch with 2-Fiber Port (Multi Mode, ST Connector) with metal case



€ 453,68

(VAT excluded)

€ 553,49(VAT included)

Prezzo di 1 pz. iva (22%) inclusa: € 553,49

Availability: 15 business days

SKU: 2972

Model: RSM-405FT CR

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  • Automatic MDI / MDI-X crossover for plug-and-play
  • Each port supports both 10/100 Mbps speed auto negotiation
  • Store-and-forward architecture
  • Full duplex IEEE 802.3x and half duplex backpressure flow control
  • 3.2Gbps high performance memory bandwidth
  • Frame buffer memory: 512 Kbit
  • Integrated look-up engine with dedicated 1 K unicast MAC addresses.
  • Redundant Power Inputs +10 ~ +30V DC
  • Power failure alarm by relay output
  • Supports operating temperatures from 0°C ~ +70°C
  • DIN rail mount and Screw hole for wall mounting kit.

The RSM-405FT is a 5-Port Industrial Ethernet Real-Time Redundant Ring Switch with 2-Port Fiber (ST Connector; Multi-mode) that secures data transmission by using fiber optics transmission to provide immunity from EMI/RFI interference. It is used Ethernet for transmitting a signal up to 2 km(6,600 ft), and is the perfect solution for applications where transmission must be protected from electrical exposure, surges, lightning or chemical corrosion.

Fiber port of RSM-405FT operates at either half or full duplex mode. In full duplex mode, range is 2km with 62.5/ 125μm fiber cables; in half duplex mode, range is 412m with 62.5/ 125μm fiber cables. The Ethernet port of RSM-405FT supports 10/ 100M auto-negotiation feature and auto MDI /MDIX function.

Built-in ICP DAS Cyber-Ring technique that enable multiple switches to be placed into a redundant ring. It detects and recovers from a fiber or copper link failure within approximately 300ms – for the majority of applications a seamless process. Modbus/TCP, Modbus/RTU and OPC supported, SCADA application can monitor status of Ethernet and fiber port with Modbus or OPC protocol.

RSM-405FT provides two power inputs that can be connected simultaneously to live DC power sources. If one of the power inputs fails, the other live source acts as a backup to automatically support the RSM-405FT's power needs. And, the relay output facility can deliver warning signal while dual power or network link failure.


Standards:  IEEE 802.3, IEEE 802.3u, IEEE802.3x
Processing Type:  Store & forward wire speed switching - no delays
MAC addresses supported:  1024
Memory Bandwidth:  3.2 Gbps
Flow Control:  IEEE802.3x flow control, back pressure flow control
Redundant strategy:  STP, Ring(ICP DAS)
Protocol:  Modbus/RTU, Modbus/TCP, OPC, STP, Cyber Ring


RJ45 port 10/100BaseT(X): auto negotiation speed, F/H duplex mode, and auto MDI/MDIX connection
Fiber Optics Port:  100 Base-FX(Multi-mode; ST connector)
LED Indicators:  10/100M, Link/Act/Backup, Full duplex/Half duplex(Fiber Port)
Ethernet Isolation:  1500 Vrms 1 minute
Frame Ground for EMS Protection: Yes
Ethernet Transmission distance: 
                 Ethernet: 2-pair UTP/STP Cat.3,4,5, EIA/TIA-568 100-ohm
                 Fast Ethernet: 2-pair UTP/STP Cat. 5, EIA/TIA-568 100-ohm
Fiber Optic Transmission distance: 
                 Multi mode fiber cables:50/125, 62.5/125 or 100/140 μm
                 Distance: 2 km, (62.5/125 μm recommended) for full duplex
                 Wavelength: 1300 or 1310nm
                 Min. TX Output: -20 dBm
                 Max. TX Output: -14 dBm
                 RX Sensitivity: -34 to -31 dBm
Ethernet Cables: 
                10 Base-T (Cat.3, 4, 5 UTP cable; 100m Max.)
                100 Base-TX (Cat.5 UTP cable; 100m Max.)
Management interface: Console, DIP/Rotary Switch
Alarm output: Relay


Input Voltage Range: +10 ~ +30VDC(Removable Terminal Block)
Power Input isolation: 1KV
Alarm Contact: One relay output with current carrying capacity of 2A @ 30 VDC
Power consumption: 0.3A@24Vdc (+/- 5%, arrowed)
Protection: Power reverse polarity protection
Frame Ground for EMS Protection: Yes
Connection: 7-Pin Removable Terminal Block


Case: Metal
Environmental rating: IP20
Dimensions: 72.5mm x 110mm x 102mm (W x H x D)
Installation: DIN rail mount; Wall Mounting


Operating temperature: 0 °C~ +70°C
Storage Temperature: -20 ~ +85°C
Relative Humidity: 10% to 90% non-condensing

Include cable

CA-090510 x 1