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Auto-Negotiation and Speed Sensing
The EDS’s RJ45 Ethernet ports independently support auto-negotiation for
transmission speeds of 10 Mbps, 100 Mbps, and 1000 Mbps, with operation
according to the IEEE802.3 standard.
This means that some nodes could be operating at 10 Mbps, while at the same
time, other nodes are operating at 100 Mbps or 1000Mbps.
Auto-negotiation takes place when an RJ45 cable connection is made, and then
each time a LINK is enabled. The EDS advertises its capability for using 10
Mbps, 100 Mbps, or 1000 Mbps transmission speeds, with the device at the
other end of the cable expected to advertise similarly. Depending on what type
of device is connected, this will result in agreement to operate at a speed of 10
Mbps, 100 Mbps, or 1000 Mbps.
If an EDS’s 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 IEEE802.3
standard.
Specifications
Specifications and Pin Assignments
Technology
Standards
IEEE 802.3 for 10BaseT,
IEEE 802.3u for 100BaseT(X),
IEEE 802.3ab for 1000BaseT,
Interface
RJ45 Ports
10/100/1000BaseT(X) auto negotiation speed
LED Indicators
PWR1, PWR2, FAULT, 10/100M/1000M
DIP Switch
Port break alarm, broadcast storm protection
Alarm Contact
One relay output with current carrying capacity of
1A @ 24 VDC
Power
Input Voltage
12/24/48 VDC (9.6 to 60 VDC)
Input Current @ 24VDC 0.2A
Connection One
removable
6-pin terminal block
Overload Current
Protection
Present
Reverse Polarity
Protection
Present
Mechanical
Casing
IP30 protection, metal case
Dimension (W x H x D) 35 x 130 x 105 mm (1.37 x 4.05 x 4.13 in)
Weight
290g
Installation DIN-rail,
Wall
Mounting (optional kit)
Environmental
Operating Temperature
0 to 60
o
C (32 to 140
o
F)
-40 to 75
o
C (-40 to 167
o
F) for -T models
Storage Temperature
-40 to 85
o
C (-40 to 185
o
F)
Ambient Relative
Humidity
5 to 95% (non-condensing)
