User Documentation

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Auto-Negotiation and Speed Sensing
All of Weidmüller Media Converter’s RJ45 Ethernet ports independently
support auto-negotiation for transmission speed 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 Media Converter 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
similarly. 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 the Media Converter’s RJ45 Ethernet port is connected to a
non-negotiating device, then the default values 10 Mbps speed and
half-duplex mode will be set, as required by the IEEE 802.3u standard.
Specifications
Technology
Standards
IEEE802.3, 802.3u, Link Fault
Pass-Through
Interface
RJ45 ports
10/100BaseT(X)
Fiber ports
100BaseFX (SC, ST connectors available)
LED Indicators
Power, Fault, 10/100M, Full
Duplex/Collision
Dip Switch
Port break alarm mask, 100BaseFx
Full/Half duplex selection
Alarm Contact
One relay output with current carrying
capacity of 1A @ 24 VDC
Optical Fiber
Multi
mode
Single
mode
Distance
5 km
40 km
Wavelength
1310 nm
1310 nm
Min. TX Output
-20 dBm
-5 dBm
Max. TX Output
-14 dBm
0 dBm
Sensitivity
-34 to -30 dBm
-36 to -32 dBm
Recommended Diameter
62.5/125 µm
9/125 µm
(Core/Cladding)
(1 dB/km,
800 MHz  km)
Power
Input Voltage
24 VDC (12 to 45 VDC); Redundant inputs
Input Current (@24V)
0.16 A
Connection
Removable Terminal Block
Overload Current
1.1 A