RS-405

Introduction

The RS-405 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. Typically it detects and recovers from a copper link failure within approximately 20 ms – for the majority of applications a seamless process. The RS-405 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-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.

RS-405 series are ICPDAS’ latest real-time redundant ring switches.
They can satisfy the requirement for link-lose-backup in the industrial field applications:

Link-Loss-Backup: 
The Backup path will become Active within 100ms (configurable), 
and keep the whole LAN working 




RS-405 series supports versatile topologies:

Versatile Topologies: 
The proprietary STP protocol of RS-405 allows users to construct
more complicated topologies than basic ring architecture.




It is also possible to construct a cost effective redundant ring Ethernet LAN by mixing 
RS-405 with other low cost unmanaged Ethernet Switch, the NS-205/208 series.

Cost Effective Ring Ethernet: 
Having one RS-405 and other lower cost unmanaged Ethernet 
switches (e.g. NS-205/208 series) in a ring, this Ethernet LAN
is also tolerant to link lose.





RS-405 series are equipped with 2 power inputs, which are redundant for each other. 
The relay output facility can deliver warning signal during power failure or link loss.

Relay Output: 
The relay output of RS-405 could deliver warning signal when 
failure on one power input or when link lose.




With supporting Modbus/TCP protocol, the administrator of Ethernet LAN 
can get the information of individual port status of RS-405.

Modbus/TCP: 
RS-405 series supports Modbus/TCP protocol. Using this protocol, 
administrator of Ethernet LAN can read port status of RS-405 and 
SCADA can know the condition of the LAN it's based on.

Features

• 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