Moxa Technologies EDS-205 - Manual (Page 9)

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
Protection 0.12A
Reverse Polarity
Protection Present
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
Humidity 5 to 95% (non-condensing)