The EDS-308 Series from Moxa offers reliable and economical 8-port unmanaged Ethernet switches designed for industrial applications. Featuring a built-in relay output warning for power failure or port break alarms and broadcast storm protection, these switches are well-suited for demanding environments such as those compliant with Class 1 Div. 2 and ATEX Zone 2.

The devices support a wide operating temperature range from -40 to 75 °C (for -T models) and undergo a complete burn-in test to ensure reliability in automation control environments. Their DIN-rail or distribution box mounting options provide installation flexibility.

Technical Details:

Input/Output Interface:

• 1 relay output (1 A @ 24 VDC) for alarm on power failure or port fault

Ethernet Interface:

• 10/100BaseT(X) RJ45 Ports:
• Models EDS-308/308-T: 8 ports
• Fiber models (e.g., EDS-308-M-SC, S-SC, SS-SC): 6 or 7 RJ45 ports depending on fiber configuration

• 100BaseFX Fiber Ports:
• Multi-mode SC: 1 or 2 ports (e.g., EDS-308-M-SC, MM-SC)
• Multi-mode ST: 2 ports (e.g., EDS-308-MM-ST)
• Single-mode SC: 1 or 2 ports (e.g., EDS-308-S-SC, SS-SC)
• Single-mode SC (80 km): 1 or 2 ports (e.g., EDS-308-S-SC-80, SS-SC-80)

Supported features for all models:

• Auto-negotiation
• Full/Half duplex
• Auto MDI/MDI-X

Key Features:

• Relay warning on power or link fault
• Broadcast storm protection
• Operating temperature:
• Standard: -10 to 60 °C
• Wide range (-T): -40 to 75 °C
• Rugged industrial housing for DIN-rail installation

Certifications:

• Class 1 Div. 2
• ATEX Zone 2
• CE, FCC, UL