Ports​

6 × 10/100BaseT(X) RJ45 ports for EDS-508A-MM/SS series

2 × 100BaseFX multimode SC fiber ports

Fiber Specification​

Multimode OM1 50/125 µm

Wavelength: 1300 nm

Typical distance: 4 km

Management​

Web HTTPS

SSH

Telnet

Console RS-232

SNMP v1/v2c/v3

LLDP

Syslog

SMTP

TFTP

BOOTP

DHCP server/client

Redundancy​

Turbo Ring v1/v2

Turbo Chain

RSTP IEEE 802.1w

MSTP IEEE 802.1s

LACP IEEE 802.3ad

Switching Features​

IEEE 802.1Q VLAN

Port-based VLAN

64 VLANs

VID 1 to 4094

4 priority queues

1 Mbit packet buffer

8192 MAC addresses

IGMP v1/v2

GVRP

GMRP

Port mirroring

Industrial Protocols​

Modbus TCP

EtherNet/IP

Security​

802.1X

RADIUS

TACACS+

Port lock

HTTPS/SSL

SSH

Digital Inputs And Alarms​

2 digital input channels

2 relay alarm outputs

Relay rating: 1 A at 24 VDC

DIP Switches​

Turbo Ring

Master

Coupler

Reserve

Power Input​

Redundant dual input

12/24/48 VDC nominal

Operating voltage: 9.6 to 60 VDC

Input current: 0.30 A at 24 VDC for MM/SS series

Reverse polarity protection

Overload protection

Mechanical​

Metal housing

IP30

Dimensions: 80.2 × 135 × 105 mm

Weight: 1040 g

DIN-rail mounting

Optional wall mounting

Environment​

Standard operating temperature: -10 to 60 °C

Wide-temperature models: -40 to 75 °C

Storage temperature: -40 to 85 °C

Humidity: 5 to 95%, non-condensing

Certifications​

UL 508

UL 60950-1

CSA C22.2 No. 60950-1

EN 60950-1

EN 55032/EN 55024

FCC Part 15B Class A

IEC 61000-4 EMC family

ATEX

Class I Division 2

Application Scenarios​

Plant Ethernet backbone

Machine line consolidation

Oil and gas sites

Marine panels

Rail and transportation networks

Water treatment stations

Working Principle​

The switching ASIC forwards frames at wire speed. The controller executes the Layer 2 protocol stack, redundancy protocols, security rules, and management functions. DIP switches configure ring role without full software setup.

Installation Requirements​

Mount on 35 mm DIN rail.

Provide redundant 24 VDC or 48 VDC where high availability is required.

Separate signal and power cabling for EMC performance.

Confirm wide-temperature model for outdoor or cabin environments.

Usage Notes​

Set master/coupler roles carefully.

Do not create loops without STP/Turbo Ring enabled.

Use relay outputs for SCADA alarm supervision.

Back up configuration after commissioning.

Verify DIP switch position before replacing a unit.