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EDS-208 Series
8-port entry-level unmanaged Ethernet switches
Features and Benefits
• 10/100BaseT(X) (RJ45 connector), 100BaseFX (multi-mode, SC/ST
connectors)
• IEEE802.3/802.3u/802.3x support
• Broadcast storm protection
• DIN-rail mounting ability
• -10 to 60°C operating temperature range
Certifications
Introduction
The EDS-208 Series supports IEEE 802.3/802.3u/802.3x with 10/100M, full/half-duplex, MDI/MDIX auto-sensing RJ45 ports. The EDS-208 Series is
rated to operate at temperatures ranging from -10 to 60°C, and is rugged enough for any harsh industrial environment. The switches can be easily
installed on a DIN rail as well as in distribution boxes. The DIN-rail mounting capability, wide operating temperature capability, and the IP30
housing with LED indicators make the plug-and-play EDS-208 switches easy to use and reliable.
Specifications
Ethernet Interface
Standards IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control
10/100BaseT(X) Ports (RJ45 connector) Auto MDI/MDI-X connection
Full/Half duplex mode
Auto MDI/MDI-X connection
100BaseFX Ports (multi-mode SC connector) EDS-208-M-SC: Supported
100BaseFX Ports (multi-mode ST connector) EDS-208-M-ST: Supported
Optical Fiber
100BaseFX
Multi-Mode Single-Mode
Fiber Cable Type OM1
50/125 µm
G.652
800 MHz x km
Typical Distance 4 km 5 km 40 km
Wavelength
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
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100BaseFX
Multi-Mode Single-Mode
Fiber Cable Type OM1
50/125 µm
G.652
800 MHz x km
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).
Switch Properties
Processing Type Store and Forward
MAC Table Size 2 K
Packet Buffer Size 768 kbits
Power Parameters
Input Voltage 24 VDC
Input Current EDS-208: 0.07 A @ 24 VDC
EDS-208-M Series: 0.1 A @ 24 VDC
Operating Voltage 12 to 48 VDC
Connection 1 removable 3-contact terminal block(s)
Overload Current Protection 2.5 A @ 24 VDC
Reverse Polarity Protection Supported
Physical Characteristics
Housing Plastic
IP Rating IP30
Dimensions 40 x 100 x 86.5 mm (1.57 x 3.94 x 3.41 in)
Weight 170 g (0.38 lb)
Installation DIN-rail mounting
Environmental Limits
Operating Temperature -10 to 60°C (14 to 140°F)
Storage Temperature (package included) -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Standards and Certifications
Safety UL 508
EMC EN 55032/24
EMI CISPR 32, FCC Part 15B Class A
EMS IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
IEC 61000-4-5 Surge: Power: 1 kV; Signal: 1 kV