EDS-305/308 Series

5 or 8-port unmanaged Ethernet switches

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Features and Benefits

Relay output warning for power failure and port break alarm
Broadcast storm protection
Transparent transmission of VLAN tagged packets
-40 to +75 degrees C operating temperature range (T models)


The EDS-305/308 are 5-port and 8-port Ethernet switches that provide an economical solution for your industrial Ethernet connections. The built-in relay warning function alerts network engineers when power failures or port breaks occur, and the switches are designed for harsh industrial environments, such as in hazardous locations (Class I, Div. 2/ATEX). The switches comply with FCC, TÜV, UL, and CE standards, and come in two model types. Standard operating temperature range models (0 to 60°C) and wide operating temperature range models (-40 to 75°C). Both models undergo a 100% burn-in test to ensure that they fulfill the special needs of industrial automation control applications. The EDS-305/308 switches can be installed easily on a DIN-Rail or in a distribution box.


IEEE 802.3 for 10BaseT

IEEE 802.3u for 100BaseT(X) and 100BaseFX

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 (EDS-305/308/309), 4 K (EDS-316)
Packet Buffer Size n/a (EDS-305), 512 Kbit (EDS-308/309), 1.25 Mbit (EDS-316)
Fiber Ports 100BaseFX ports (SC/ST connector)
RJ45 Ports 10/100BaseT(X) auto negotiation speed, Full/Half duplex mode, and auto MDI/MDI-X connection
DIP Switches

• Port break alarm mask

• Enable/disable broadcast storm protection (EDS-316)

LED Indicators PWR1, PWR2, FAULT, 10/100M (TP port), 100M (fiber port)
Alarm Contact 1 relay output with current carrying capacity of 1 A @ 24 VDC
Optical Fiber
Specifikation lämpliga Fiberkabelvarianter
Power Requirements
Input Voltage 24 VDC (12 to 48 VDC), redundant dual inputs
Input Current

EDS-305: 0.13 A @ 24 V

EDS-305-M/S: 0.17 A @ 24 V

EDS-308: 0.13 A @ 24 V

EDS-308-M/S: 0.21 A @ 24 V

EDS-308-MM/SS: 0.26 A @ 24 V

Overload Current Protection

EDS-305, EDS-305-M, EDS-305-S, EDS-308: 1.1 A

EDS-308-M/S/MM/SS,: 1.6 A

Connection 1 removable 6-pin terminal blocks
Reverse Polarity Protection Present
Physical Characteristics
Housing Metal, IP30 protection
Dimensions 53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in)
Weight 790 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

EDS-305 Series: UL 508, UL 60950-1, CSA C22.2 No. 60950-1

EDS-308Series: UL 508, UL 60950-1, CSA C22.2 No. 60950-1, EN 60950-1

Hazardous Location UL/cUL Class I Division 2 Groups A/B/C/D, ATEX Zone 2 Ex nC IIC (EDS-316 Series V2.0 pending)
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 3, EN 61000-4-5 (Surge) Level 3,

EN 61000-4-6 (CS) (EDS-305/308: Level 2; EDS-309/316: Level 3)

Marine DNV, GL
Shock IEC 60068-2-27
Freefall IEC 60068-2-32
Vibration IEC 60068-2-6
Note Please check Moxa’s website for the most up-to-date certification status.
MTBF (mean time between failures)

EDS-305 series: 422,000 hrs

EDS-308 series: 255,000 hrs

Database MIL-HDBK-217F, GB 25°C
Warranty Period 5 years
Details See www.moxa.com/warranty

Produkter i denna serie

Info Portar
Ethernetportar Fiberportar
Namn Temperatur-
Managerbar Totalt