RSM-408 8-port Redundant Ring Switch with Isolated Power Input +10 VDC ~ +30 VDC with metal case


Key Features

• Automatic MDI/MDI-X crossover for plug-and-play
• Store-and-forward architecture
• Each port supports both 10/100 Mbps speed auto negotiation
• Full duplex IEEE 802.3x and half duplex back-pressure flow control
• Supports wide operating temperature -40 °C ~ +75 °C
• 3.2 Gbps high performance memory bandwidth
• Redundant Dual Power Inputs +10 VDC ~ +30 VDC
• Power failure alarm by relay output
• Modbus remote monitoring
• Supports Modbus OPC Server
• 2048 MAC addresses
• Frame buffer memory: 1 Mbit
• Absolutely free of software setting
• Built-in Cyber-Ring redundant technique
• DIN-Rail Mounting or Wall Mounting


The ICP DAS RSM-408 is a 8-port industrial Ethernet (10/100Base-TX) real-time redundant ring switch. The RSM-408 supports 10/100M auto-negotiation feature and auto MDI /MDIX function. It can automatically switch the transmission speed (10 Mbps or 100 Mbps) for corresponding connections.

The connectors of Ethernet port are shielded RJ-45 which offers a high reliability Ethernet environment for industrial control and automation. The Built-in ICP DAS Cyber-Ring technique enables multiple switches to be set-up into a redundant ring. This redundant switch typically detects and recovers from a copper link failure within approximately 20 ms. The ICP DAS RSM-408 is easy to use with minimal software settings. The RSM-405 provides two power inputs that can be connected simultaneously to DC power sources. If one of the power inputs fails, the other live source acts as a backup to automatically support the RSM-408’s power needs. The RSM-408 is also equipped with a relay output which delivers warning signal if there’s a dual power or network link failure.