Moxa EDS-305-M-ST Industrial Unmanaged Ethernet Switch

Technical Overview

5-port industrial unmanaged switch with 4x 10/100BaseT(X) RJ45 and 1x 100BaseFX multi-mode ST fiber, 12-48 VDC redundant input, IP30, -10 to 60°C.

Key Features

4 10/100BaseT(X) ports (RJ45 connector)
1 100BaseFX multi-mode port with ST connector
Redundant dual 12-48 VDC power inputs
Relay output warning for power failure and port break alarm
IP30 metal housing for industrial environments
DIN-rail or wall mounting options
Broadcast storm protection
Transparent transmission of VLAN tagged packets
Compliant with industrial standards for hazardous locations (Class I Div. 2, ATEX Zone 2, IECEx)

Technical Specification Matrix

Parameter	Value
Housing	Metal
IP Rating	IP30
Input Voltage	12-48 VDC (Redundant dual inputs)
Operating Voltage	9.6 to 60 VDC
Input Current	0.2 A (max.)
Operating Temperature	-10 to 60°C (14 to 140°F)
Storage Temperature	-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity	5 to 95% (non-condensing)
MAC Table Size	2 K
Packet Buffer Size	768 kbits
Processing Type	Store and Forward
Power Connection	1 removable 6-contact terminal block(s)
Ethernet Ports	4 x 10/100BaseT(X) (RJ45)
Fiber Ports	1 x 100BaseFX multi-mode (ST connector)
Physical Weight (kg)	0.79
Dimensions L x W x H (cm)	10.5 x 5.3 x 13.5

Industrial Applications

1. Factory Automation Network Extension

Extending an Ethernet network in a manufacturing facility to connect various PLCs, HMIs, and sensors in a harsh industrial environment. The multi-mode fiber optic port allows for longer distance connections immune to electromagnetic interference (EMI), while the copper ports connect local devices.

Problem Solved

Provides robust and reliable network connectivity for diverse industrial Ethernet devices over long distances in electrically noisy environments, ensuring continuous operation and redundancy against power issues.

Industrial EthernetPLC connectivityHMISCADAEMI immunityFiber optic communicationDIN-rail mountingRedundant power

2. Building Automation for HVAC/Security Systems

Deploying in building management systems to connect IP-based HVAC controllers, security cameras, and access control panels across different floors or buildings. The robust design, IP30 rating, and operating temperature range (-10 to 60°C) suit wiring closets or equipment rooms.

Problem Solved

Offers reliable, industrial-grade network connectivity for critical building infrastructure, enabling centralized monitoring and control, and ensuring longevity and stability in non-climate-controlled technical spaces.

Building Management System (BMS)HVAC controlIP camerasAccess controlLong-distance networkingMulti-mode fiberSecure connectivityIP30

3. Remote Site Monitoring for Utilities

Establishing network connectivity for monitoring and control equipment in remote utility substations or water treatment plants, where exposure to varying temperatures and potential power fluctuations is common. The redundant power inputs enhance reliability in unattended locations.

Problem Solved

Ensures dependable data transmission from remote industrial sites to a central control room, tolerating environmental variations (within -10 to 60°C) and protecting against power interruptions, crucial for infrastructure management.

Utility monitoringSCADARemote telemetryData acquisitionPower redundancyEnvironmental resilienceFiber backboneIndustrial control