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8-Port Real-time Redundant Ring Switch

● 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
● 3.2 Gbps high performance memory bandwidth
● Frame buffer memory : 1 Mbit
● 2048 MAC addresses
● Redundant Power Inputs +10 ~ +30 VDC
● Power failure alarm by relay output
● Supports operating temperatures from -40°C ~ +75°C
● DIN-Rail mount for industrial usage



The RS-408 series is a 8-Port Industrial Ethernet (10/100Base-TX) Real-Time Redundant Ring Switch. The RS-408 series 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. The shielded RJ-45 connectors offer a high reliability Ethernet environment for industrial control and automation.

Built-in ICP DAS Cyber-Ring technique that enable multiple switches to be placed into a redundant ring. Typically it detects and recovers from a copper link failure within approximately 20 ms – for the majority of applications a seamless process. The RS-408 Series is much more easy to use and absolutely free of software setting. After unpacking from the shipping case, it just takes one or two dip or rotary switch to make it work.

The RS-408 series provide 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 The RS-408 series 's power needs. And, the relay output facility can deliver warning signal while dual power or network link failure.


Artikelnummer RS-408A / RSM-408A
Fabrikant ICPDAS
Completely compliant IEEE 802.3, IEEE 802.3u, IEEE802.3x
MAC addresses supported  2048
Memory Bandwidth 3.2 Gbps
RJ45 ports (shielded) 10/100 Base-TX auto negotiation speed, F/H duplex mode, and auto MDI/MDI-X connection
Ethernet isolation 1500 Vrms 1 minute
Required supply voltage

+12 ~ +48 VDC (Non- Isolation)

Power consumption
(Redundant input terminals)
0.3 A @ 24 VDC, +/-5% arrowed with 100M Full duplex
Case RS-408A: Plastic
RSM-408A: Metal
Flammability UL 94V-0
Dimensions (w x h x d)

RS-408A: 64 mm x 97.5 mm x 110 mm
RSM-408A: 73 mm x 102 mm x 132 mm

Installation RS-408A: DIN-Rail Mounting
RSM-408A: DIN-Rail or Wall Mounting
Operating Temperature -40°C ~ +75°C
Storage Temperature -40°C ~ +85°C
Included Cable CA-090510 x 1


Model: RS-408
8-Port Real-time Redundant Ring Switch

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