Moxa TN-5308-4PoE-48-T [11/12] Auto negotiation and speed sensing
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Moxa TN-5308-4PoE-48-T [11/12] Auto negotiation and speed sensing

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Auto-Negotiation and Speed Sensing
All of the TN-5308-4/8PoE’s 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 M12 cable connection is made, and
then each time a LINK is enabled. The TN-5308-4/8PoE 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 the same
way. 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 TN-5308-4PoE’s 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
IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X)
IEEE 802.3x for Flow Control
IEEE 802.3af for Power-over-Ethernet
Processing Type
Store and Forward
Flow Control
IEEE802.3x flow control, back pressure flow
control
Interface
M12 Ports
10/100BaseT(X) auto negotiation speed, F/H
duplex mode and auto MDI/MDI-X connection
LED Indicators
PWR, 10/100M
Power Requirements
Input Voltage
48 VDC (46 to 50 VDC)
Input Current
TN-5308-4PoE: 4.6A @ 48 VDC
TN-5308-8PoE: 2.9A @ 48 VDC
Connection
TN-5308-4/8PoE:
M12 A-coding, 5-pin male connector
Overload Current
Protection
Present
Reverse Polarity
Protection
Present
Physical Characteristics
Housing
Metal, IP40 protection
Dimensions (W × H × D)
TN-5308-4PoE: 60 x 216.6 x 49.5 mm
(2.36 x 8.53 x
1.95 in)
TN
-5308-8PoE: 80 x 216.6 x 52.9 mm
(3.15 x 8.53 x 2.08 in)
Weight
TN-5308-4PoE: 675 g
TN-5308-8PoE: 970 g
Installation
Panel mounting, DIN
-Rail mounting (with
optional kit)
Environmental Limits
Operating Temperature
Standard Models: -25 to 60°C (-13 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature
-40 to 85°C (-40 to 185°F)

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