1-76 EDS-P308 Series 1 Industrial Ethernet Switches Industrial Ethernet Switches > www. m oxa. com 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. Specifications 8-port unmanaged Ethernet switches with 4 IEEE 802.3af PoE ports Power over Ethernet A P P R O V E D P R O D U C T › ›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) Technology Standards: 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 Switch Properties MAC Table Size: 1 K Packet Buffer Size: 512 kbit Interface RJ45 Ports: 10/100BaseT(X) auto negotiation speed, Full/Half duplex mode, and auto MDI/MDI-X connection Fiber Ports: 100BaseFX ports (SC connector) PoE Pinout: V+, V+, V-, V- for pin 1, 2, 3, 6 (Endspan, MDI Alternative A) DIP Switches: Port break alarm mask Alarm Contact: 1 relay output with current carrying capacity of 0.5 A @ 48 VDC Optical Fiber 100BaseFX Multi-Mode Single-Mode Fiber Cable Type OM1 50/125 μm G.652 800 MHz*km Typical Distance 4 km 5 km 40 km Wave- length Typical (nm) 1300 1310 TX Range (nm) 1260 to 1360 1280 to 1340 RX Range (nm) 1100 to 1600 1100 to 1600 Optical Power TX Range (dBm) -10 to -20 0 to -5 RX Range (dBm) -3 to -32 -3 to -34 Link Budget (dB) 12 29 Dispersion Penalty (dB) 3 1 Note: When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB). Power Requirements Input Voltage: 48 VDC, redundant dual inputs Operating Voltage: 44 to 57 VDC Input Current: 1.47 A @ 48 VDC Overload Current Protection: 2.5 A @ 48 VDC Connection: 1 removable 6-contact terminal block Reverse Polarity Protection: Present Power Consumption: Max. 9.16 W full loading without PDs’ consumption Power Budget: Max. 61.4 W for total PDs’ consumption Max. 15.4 W for each PoE port