The DCE/MNS205 is a 5-Port Industrial Ethernet (10/100Base-TX) Real-Time Redundant Ring Switch. RS-405 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. 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 port with Modbus or OPC protocol.RS-405 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 RS-405’s power needs. And, the relay output facility can deliver warning signal while dual power or network link failure.
- 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 : 1 Mbit
- Integrated look-up engine with dedicated 2 K unicast MAC addresses.
- Redundant Power Inputs +10 ~ +30V DC
Power failure alarm by relay output
- Supports operating temperatures from -30°C ~ +75°C
- DIN rail mount for industrial usage
Technology |
Completely compliant |
IEEE 802.3, IEEE 802.3u, IEEE802.3x |
Ethernet switch type |
Intelligent store & forward |
MAC addresses supported |
2K |
Memory Bandwidth |
3.2 Gbps |
Interface |
RJ45 ports (shielded) |
10/100BaseT(x) |
RJ45 speed (auto-negotiating) |
10 Mbps or 100 Mbps |
RJ45 auto-mdi/mdi-x |
All 5 ports |
Ethernet isolation |
1500 VRMS 1 minute |
Power |
Required supply voltage |
+10 ~ +30 VDC |
Power input isolation |
1KV |
Power consumption
(Redundant input terminals) |
5 W
(typical – all ports active at 100 Mbps) |
Mechanical |
Case |
Plastic |
Flammability |
UL 94V-0 |
Dimensions |
64mm x 110mm x 97.5mm (W x H x D) |
Installation |
DIN rail mount |
Environmental |
Operating Temperature |
-30°C ~ +75°C |
Storage Temperature |
-40°C ~ +85°C |
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