Moxa EDS-P308 Series Switches 仕様ガイド

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Industrial Ethernet Solutions
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 PoE unmanaged Ethernet switches
 
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)
     A
P P R O V E D
P R O D U C T
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 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 fiber optic cable
b. 62.5/125 μm, 500 MHz*km fiber optic cable
c. 9/125 μm single-mode fiber optic cable
Power Requirements
Input Voltage: 48 (46 to 50 V) VDC, redundant 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)