Specifications

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Industrial Ethernet Solutions
Industrial Ethernet Switches >
EDS-P308 Series
3
EDS-P308 Series
Introduction
The EDS-P308 switches are smart, 8-port, unmanaged Ethernet
switches supporting PoE (Power-over-Ethernet) on ports 1 to 4.
The switches are classified as power source equipment (PSE), and
when used in this way, the EDS-P308 switches enable centralization
of the power supply and provide up to 15.4 watts of power per port.
The switches can be used to power IEEE 802.3af compliant powered
devices (PD), eliminating the need for additional wiring, and support
IEEE 802.3/802.3u/802.3x with 10/100M, full/half-duplex, MDI/MDI-X
auto-sensing to provide an economical solution for your industrial
Ethernet network. In addition, the built-in relay warning function alerts
network engineers when power failures or port breaks occur.
4 IEEE 802.3af compliant PoE and Ethernet combo ports
›
Up to 15.4 watts at 48 VDC per PoE port ›
Intelligent power consumption detection and classifi cation ›
Redundant dual VDC power inputs ›
-40 to 75˚C operating temperature range (T models) ›
Specifi cations
8-port IEEE 802.3af PoE unmanaged Ethernet switches
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: IEEE 802.3x fl ow control, back pressure fl ow control
Interface
RJ45 Ports: 10/100BaseT(X) auto negotiation speed, F/H duplex
mode, and auto MDI/MDI-X connection
DIP Switches: Port break alarm mask
LED Indicators: PWR1, PWR2, FAULT, 10/100M, PoE
Alarm Contact: 1 relay output with current carrying capacity of
0.5 A @ 48 VDC
Optical Fiber
Power Requirements
Input Voltage: 48 (46 to 50 V) VDC, redundant inputs
Input Current: 1.6 A @ 48 V
Overload Current Protection: 2.5 A @ 48 VDC
Connection: 1 removable 6-contact terminal block
Reverse Polarity Protection: Present
PoE (per port)
Max. Output Power: 15.4 W
Output Voltage: 44 to 48.5 VDC
Max. Output Current: 350 mA
Max. Overload Protection: 400 mA
Physical Characteristics
Housing: Metal, IP30 protection
Dimensions: 53.6 × 135 × 105 mm (2.11 x 5.31 x 4.13 in)
Weight: 840 g
Installation: DIN-Rail mounting, wall mounting (with optional kit)
Environmental Limits
Operating Temperature:
Standard Models: 0 to 60°C (32 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)
Regulatory Approvals
Safety: UL508
Hazardous Location: UL/cUL Class I, Division 2, Groups A, B, C,
and D (Pending); ATEX Class I, Zone 2, Ex nC IIC (Pending)
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100BaseFX
Multi-mode Single-mode
Wavelength 1300 nm 1310 nm
Max. TX -10 dBm 0 dBm
Min. TX -20 dBm -5 dBm
RX Sensitivity -32 dBm -34 dBm
Link Budget 12 dB 29 dB
Typical Distance
5 km
a
4 km
b
40 km
c
Saturation -6 dBm -3 dBm
a. 50/125 µm, 800 MHz*km fi ber optic cable
b. 62.5/125 µm, 500 MHz*km fi ber optic cable
c. 9/125 µm single-mode fi ber optic cable