Switching and Address Learning

Moxa EtherDevice Switch has an address table that can hold up to 1K 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, Moxa EtherDevice Switch 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 Moxa EtherDevice Switch’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 an RJ45 cable connection is made, and then each time a LINK is enabled. Moxa EtherDevice Switch 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 a Moxa EtherDevice Switch 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.

Specifications

Technology

 

Standards

IEEE802.3, 802.3u, 802.3x

Processing Type

Store and Forward, with IEEE802.3x full duplex,

 

non-blocking flow control

Address Table Size

1K uni-cast addresses

Interface

 

RJ45 Ports

10/100BaseT(X) auto negotiation speed, F/H

 

duplex mode, and auto MDI/MDI-X connection

LED Indicators

Power, 10/100 M

Power

 

Input Voltage

DC: 12 to 48 V, AC: 18 to 30V, 47~63 Hz

Power Consumption

5W

Connection

Removable 3-contact Terminal Block

Overload Current

0.12A

Protection

 

Reverse Polarity

Present

Protection

 

Mechanical

 

Casing

IP30 protection, plastic case

Dimensions

25 x 109 x 88 mm (W x H x D)

Weight

135g

Installation

DIN-Rail

Environment

 

Operating Temperature

-10 to 60°C (14 to 140°C)

Storage Temperature

-40 to 70°C (-40 to 158°)

Ambient Relative

5 to 95% (non-condensing)

Humidity

 

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Moxa Technologies EDS-205 manual Switching and Address Learning, Auto-Negotiation and Speed Sensing, Specifications