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Location: >> Industrial ethernet switches >> POE Unmanaged switches

Industrial ieee802.3af power-over-ethernet unmanaged ethernet switch with 8 10/100baset(x) ports


€ 313.00


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Features and Benefits

  • 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 classification
  • Redundant dual VDC power inputs
  • -40 to 75°C operating temperature range (T models)


Download Industrial PoE Application PortfolioThe 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.


     IEEE 802.3af for Power-over-Ethernet
     IEEE 802.3 for 10BaseT
     IEEE 802.3u for 100BaseT(X)
     IEEE 802.3x for Flow Control

Processing Type: Store and Forward
Flow Control: IEEE 802.3x flow control, back pressure flow control

Switch Properties

MAC Table Size: 1 K
Packet Buffer Size: 512 kbit


Fiber Ports: 100BaseFX ports (SC connector)
RJ45 Ports: 10/100BaseT(X) auto negotiation speed, Full/Half duplex mode, and auto MDI/MDI-X connection
PoE Pinout: V+, V+, V-, V- for pin 1, 2, 3, 6 (Endspan, MDI Alternative A)
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

              Wavelength: 1300 nm
              Max. TX: -10 dBm
              Min. TX: -20 dBm
              RX Sensitivity: -32 dBm
              Link Budget: 12 dB

              Typical Distance:
                   5 km
                   4 km

              Saturation: -6 dBm

              Wavelength: 1310 nm
              Max. TX: 0 dBm
              Min. TX: -5 dBm
              RX Sensitivity: -34 dBm
              Link Budget: 29 dB
              Typical Distance: 40 km
              Saturation: -3 dBm

Power Requirements

Input Voltage: 48 (46 to 50 V) VDC, redundant dual inputs
Input Current: Max. 1.6 A @ 48 V (supports up to 4 ports at 15.4 W per PoE port)
Overload Current Protection: 2.5 A @ 48 VDC
Connection: 1 removable 6-contact terminal block
Reverse Polarity Protection: Present

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)

Standards and Certifications

Safety: UL 508
EMI: FCC Part 15 Subpart B Class A, EN 55022 Class A

     EN 61000-4-2 (ESD) Level 3, EN 61000-4-3 (RS) Level 3,
     EN 61000-4-4 (EFT) Level 4, EN 61000-4-5 (Surge) Level 4,
     EN 61000-4-6 (CS) Level 3, EN61000-4-8

Marine: DNV, GL, LR, ABS, NK
Shock: IEC 60068-2-27
Freefall: IEC 60068-2-32
Vibration: IEC 60068-2-6

MTBF (mean time between failures)

Time: 406,194 hrs
Database: Telcordia (Bellcore), GB


Warranty Period: 5 years

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