The EDS-305 Series from Moxa provides a reliable and cost-effective solution for industrial Ethernet networking. These compact 5-port unmanaged switches are designed for tough industrial environments with wide temperature options, redundant power inputs, and support for fiber connections up to 80 km. The built-in relay output alerts engineers to power or link failures, and all models include broadcast storm protection and rugged DIN-rail mounting.

Technical Specifications:

Ethernet Interface:

• 10/100BaseT(X) Ports (RJ45):
• EDS-305 / 305-T: 5 ports
• EDS-305-M/S Models: 4 ports
• 100BaseFX Ports:
• Multi-Mode SC: EDS-305-M-SC (1 port)
• Multi-Mode ST: EDS-305-M-ST (1 port)
• Single-Mode SC: EDS-305-S-SC (1 port), -SC-80 variant for 80 km

Features:

• Auto Negotiation (speed)
• Full/Half Duplex mode
• Auto MDI/MDI-X support
• Broadcast Storm Protection
• Port Break Alarm via DIP switch

Alarm Output:

• 1 relay output: 1 A @ 24 VDC (power or link failure)

Switch Properties:

• MAC Table Size: 2K entries
• Packet Buffer Size: 768 kbit
• Processing Type: Store and Forward

Power Requirements:

• Connection: 6-pin removable terminal block
• Input Voltage: 12–48 VDC (operating: 9.6 to 60 VDC)
• Dual redundant inputs, reverse polarity and overload protected

Physical Characteristics:

• Housing: Metal
• IP Rating: IP30
• Dimensions: 53 x 135 x 105 mm
• Weight: 790 g
• Mounting: DIN rail, optional wall mount

Environmental Limits:

• Operating Temperature:
• Standard Models: -10 to 60 °C
• -T Models: -40 to 75 °C
• Storage Temperature: -40 to 85 °C
• Humidity: 5 to 95% (non-condensing)

Optical Fiber (100BaseFX):

• Supported up to 80 km (single-mode SC)
• TX Optical Power: -20 to 0 dBm
• RX Range: -3 to -34 dBm
• Dispersion Penalty: 1–3 dB

Certifications:

• Safety: UL 61010-201-1, UL/EN/IEC 62368-1
• EMC/EMI: CISPR 32, FCC Part 15B Class A, IEC 61000-4
• Hazardous Locations: ATEX, Class I Div. 2, IECEx
• Mechanical: Vibration/Shock/Freefall (IEC 60068)
• Marine: DNV Certified

MTBF:

• EDS-305: 3,821,019 hours
• EDS-305-M/S: 3,327,332 hours

Warranty:

• Period: 5 years
• Details: www.moxa.com/warranty

Package Contents:

• 1 x EDS-305 Series switch
• 2 x Plastic caps for RJ45 ports
• 1 x SC/ST port cap (model-dependent)
• 1 x Quick installation guide