
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.
High Performance Network Switching Technology 10/100BaseT(X) (RJ45) IEEE802.3/802.3u/802.3x Store and Forward switching process type 10/100M, Full/Half-Duplex, MDI/MDI-X auto-sensing Power-over-Ethernet Technology IEEE802.3af compliant Provides up to 15.4 watts at 48 VDC per PoE port Intelligent power consumption detection and classification Industrial-grade Reliability Power failure, port break alarm by relay output Redundant dual DC power inputs Rugged Design Operating temperature ranges from 0 to 60¡ÆC, or extended operating temperature from -40 to 75¡ÆC IP30, rugged high-strength metal case DIN-Rail or panel mounting ability

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
Flow Control
IEEE 802.3x flow control, back pressure flow control
Switch Properties
MAC Table Size
1 K
Packet Buffer Size
512 kbit
Interface
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
| 100BaseFX | ||
| Multi-mode | Single-mode | |
| Wavelength | 1300 nm | 1310 nm |
| Max. TX | -10 dBm | 0 dBm |
| Min. TX | -20 sBm | -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 |
| EDS-P308 | Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 4 PoE ports, 0 to 60‹C operating temperature |
| EDS-P308-MM-SC | Unmanaged Ethernet switch with 2 10/100BaseT(X) ports, 4 PoE ports, and 2 100BaseFX multi-mode ports with SC connectors, 0 to 60‹C operating temperature |
| EDS-P308-MM-SC-T | Unmanaged Ethernet switch with 2 10/100BaseT(X) ports, 4 PoE ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75‹C operating temperature |
| EDS-P308-M-SC | Unmanaged Ethernet switch with 3 10/100BaseT(X) ports, 4 PoE ports, and 1 100BaseFX multi-mode port with SC connector, 0 to 60‹C operating temperature |
| EDS-P308-M-SC-T | Unmanaged Ethernet switch with 3 10/100BaseT(X) ports, 4 PoE ports, and 1 100BaseFX multi-mode port with SC connector, -40 to 75‹C operating temperature |
| EDS-P308-S-SC | Unmanaged Ethernet switch with 3 10/100BaseT(X) ports, 4 PoE ports, and 1 100BaseFX single-mode port with SC connector, 0 to 60‹C operating temperature |
| EDS-P308-S-SC-T | Unmanaged Ethernet switch with 3 10/100BaseT(X) ports, 4 PoE ports, and 1 100BaseFX single-mode port with SC connector, -40 to 75‹C operating temperature |
| EDS-P308-SS-SC | Unmanaged Ethernet switch with 2 10/100BaseT(X) ports, 4 PoE ports, and 2 100BaseFX single-mode ports with SC connectors, 0 to 60‹C operating temperature |
| EDS-P308-SS-SC-T | Unmanaged Ethernet switch with 2 10/100BaseT(X) ports, 4 PoE ports, and 2 100BaseFX single-mode ports with SC connectors, -40 to 75‹C operating temperature |
| EDS-P308-T | Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 4 PoE ports, -40 to 75‹C operating temperature |
Recommended Accessories
SPL-24 series PoE splitter with 12.95 watts at 24 VDC
DR Series DIN-Rail 48 VDC Power Supplies