User Manual

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Auto-Negotiation and Speed Sensing
All of the EDS’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. The EDS
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 advertise in a similar manner. 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 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.
Total Power Budget
For the total power budget, the EDS-P206A-4PoE will have 62 W at 12-17
VDC input, and 120 W at 18-57 VDC input. The total power budget is the
total amount of reserved PoE power based on the PoE class of PoE device.
If a newly connected PoE device causes the total reserved power to
exceed the total power budget, the newly connected PoE device will be
denied power.
Input Voltage
Total Power Budget
12 VDC (12-17 VDC)
62 W
24 VDC (18-35 VDC)
120 W
48 VDC (36-57 VDC)
120 W
PoE Class
Reserved Power
0
15.4 W
1
4.0 W
2
7.0 W
3
15.4 W
4
30 W
Specifications
Technology
Standards
IEEE 802.3 for 10BaseT,
IEEE 802.3u for 100BaseT(X) and 100BaseFX,
IEEE 802.3x for Flow Control
IEEE 802.3af for PoE
IEEE 802.3at for PoE+
Processing Type
Store and Forward
Flow Control IEEE 802.3x flow control, back pressure flow
control
Interface
RJ45 Ports
10/100BaseT(X) auto negotiation speed, F/H
duplex mode, and auto MDI/MDI-X connection
Fiber Ports
100BaseFX ports (SC/ST connector,
multi/single-mode)
LED Indicators
P1, P2 (Power), 10/100M (TP port), and 100M
(fiber port), PoE
DIP Switch
enable/disable broadcast storm protection