EDS-309 Series
9-port unmanaged Ethernet switches

Features and Benefits
• Relay output warning for power failure and port break alarm
• Broadcast storm protection
• -40 to 75°C wide operating temperature range (-T models)

Certifications

Introduction
The EDS-309 Ethernet switches provide an economical solution for your industrial Ethernet connections. These 9-port switches come with a built-
in relay warning function that alerts network engineers when power failures or port breaks occur. In addition, the switches are designed for harsh
industrial environments, such as the hazardous locations defined by the Class 1 Div. 2 and ATEX Zone 2 standards.
The switches comply with FCC, UL, and CE standards and support either a standard operating temperature range of -10 to 60°C or a wide
operating temperature range of -40 to 75°C. All switches in the series undergo a 100% burn-in test to ensure that they fulfill the special needs of
industrial automation control applications. The EDS-309 switches can be installed easily on a DIN rail or in a distribution box.

Specifications
Input/Output Interface
Alarm Contact Channels 1 relay output with current carrying capacity of 1 A @ 24 VDC

Ethernet Interface
10/100BaseT(X) Ports (RJ45 connector) 6
Auto negotiation speed
Full/Half duplex mode
Auto MDI/MDI-X connection

100BaseFX Ports (multi-mode SC connector) EDS-309-3M-SC Series: 3

100BaseFX Ports (multi-mode ST connector) EDS-309-3M-ST Series: 3

Standards IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control

Switch Properties
MAC Table Size 1 K

Packet Buffer Size 512 kbits

Processing Type Store and Forward

DIP Switch Configuration
Ethernet Interface Port break alarm