SGD210.37

Ethernet Switch EDS 208

0 in Stock

8 port unmanaged Ethernet switch, IP30 plastic housing

Brand: Moxa
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- 10/100BaseT(X) (RJ45 connector),
- Supports IEEE 802.3/802.3u/802.3x
- Operating temperature range -10 to 60C
- 12 to 48VDC operating voltage 
- Overload current protection 
- Reverse polarity protection 
- Broadcast storm protection
- Industrial Certifications
- IP30 plastic housing, weighing 135g (40 x 100 x 86.5mm)

 

 

Moxa EDS-208 Series supports IEEE 802.3/802.3u/802.3x with 10/100M, full/half-duplex, MDI/MDIX auto-sensing RJ45 ports. The Auto MDI/MDI-X function allows users to connect the switch’s 10/100BaseTX ports to any kind of Ethernet device, regardless of the type of Ethernet cable being used for the connection. This means that you can use either a straight-through or cross-over cable to connect the EDS to your Ethernet devices. Moxa EDS 208 supports a wide range of DC power input from 12V to 48V and grounding. To do so, Run the ground connection from the right most contact of the 3-contact terminal block to the grounding surface prior to connecting devices.

 

Moxa EDS-208 Series is rated to operate at temperatures ranging from -10 to 60°C, and is rugged enough for any harsh industrial environment. The switches can be easily installed on a DIN rail as well as in distribution boxes. The DIN-rail mounting capability, and IP30 housing with LED indicators make the plug-and-play EDS-208 switches easy to use and reliable.

Switching, Filtering, and Forwarding

Each time a packet arrives at one of the switched ports, a decision is made either to filter or to forward the packet. Packets with source and destination addresses belonging to the same port segment will be filtered, constraining those packets to one port, and relieving the rest of the network from the need to process them. A packet with destination address on another port segment will be forwarded to the appropriate port, and will not be sent to the other ports where it is not needed. Packets that are used in maintaining the operation of the network (such as the occasional multi-cast packet) are forwarded to all ports. EDS-208 operates in the store-and-forward switching mode, which eliminates bad packets and enables peak performance to be achieved when there is heavy traffic on the network.  

 

Switching and Address Learning

EDS-208 has an address table that can hold up to 1,000 node addresses, which makes it suitable for use with large networks. The address tables are self-learning, so that as nodes are added or removed, or moved from one segment to another, EDS-208 automatically keeps up with new node locations. An address-aging algorithm causes the least-used addresses to be deleted in favor of newer, more frequently used addresses. To reset the address buffer, power down the unit and then power it back up.

 

Auto-Negotiation and Speed Sensing

All of EDS-208’s RJ45 Ethernet ports independently support auto-negotiation for speeds in the 10BaseT and 100BaseTX modes, with operation according to the IEEE 802.3u standard. This means that some nodes could be operating at 10 Mbps, while at the same time, other nodes are operating at 100 Mbps. Auto-negotiation takes place when a “live” RJ45 cable is connected to the switch, and then each time a LINK is enabled. EDS-208 advertises its capability for using either 10 Mbps or 100 Mbps transmission speeds, with the device at the other end of the cable expected to similarly advertise. Depending on what type of device is connected, this will result in agreement to operate at a speed of either 10 Mbps or 100 Mbps. If an EDS-208 RJ45 Ethernet port is connected to a non-negotiating device, it will default to 10 Mbps speed and half-duplex mode, as required by the IEEE 802.3u standard.

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