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SDS300 Series Din-Rail Unmanaged PoE Industrial Switch

SDS300 Series Din-Rail Unmanaged PoE Industrial Switch

Backplane bandwidth up to 52 Gbps

Rust-free aluminum alloy housing with hex socket screws

Wire-speed forwarding and auto MDI/MDI-X on all ports; long-distance transmission supported

Supports IEEE 802.3af/at PoE

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Product Overview

SDS300 Series DIN-rail Unmanaged PoE Industrial Switch

SDS300 Series DIN-rail unmanaged PoE industrial switch supports up to 4×FE/GE SFP + 8×PoE Gigabit copper, designed for harsh industrial environments as a cost-effective Ethernet solution. Operating temperature -40°C~+75°C.

MTX Series 4-port unmanaged PoE industrial switch, die-cast aluminum housing. 2×100/1000BaseX SFP + 2×10/100/1000BaseT PoE. IP30, -40°C~+75°C. DC isolated input 48~54VDC (Class 2 power only).

Certifications

Contact

FAQ

  • The cable is connected, but the port will not come UP / the link is down. What should I check?

    +

    1) Confirm an industrial-grade cable and proper RJ45 crimping. 2) Check speed/duplex settings; set both ends to auto-negotiation. 3) Check whether the port is administratively shut down, in the wrong VLAN, or restricted by port security.

  • What are the PoE power specifications?

    +

    Standard PoE and PoE+ are supported, with max per-port power of 15.4 W and 30 W respectively. Total system power budget must be calculated during selection to avoid insufficient supply when too many PDs are connected.

  • Which ring protocols are supported, and what is the self-healing time?

    +

    Mainstream industrial ring protocols such as ERPS (G.8032), RSTP/STP, MRP, and PRP are supported. ERPS typical self-healing is ≤50 ms; traditional RSTP is second-level. It is recommended to use one ring protocol consistently across the network.

  • How should I choose between Layer-2 and Layer-3 industrial switches?

    +

    Layer-2 switches: basic features such as VLAN, ring networks, and port mirroring; suited to access layers and same-subnet networking with strong cost performance. Layer-3 switches: add static routing, OSPF, DHCP relay, multicast, and other routing features—choose these when cross-subnet communication or core/aggregation networks are required.

  • Can non-OEM SFP optical modules work normally?

    +

    The device is compatible with generic IEEE 802.3 SFP modules. Non-OEM modules can usually be recognized, but some brands may have compatibility issues. OEM modules are recommended.

  • How do I restore factory settings if I forget the device login password?

    +

    1) Hardware reset: press and hold the RESET button for 5–10 seconds; the device reboots to factory defaults. 2) Software reset: use the vendor NMS to restore factory settings remotely. All custom configurations will be cleared after restore.

  • What are the power supply requirements for industrial switches?

    +

    DC models support 18–60 VDC or 9.6–60 VDC; AC models support 100–240 VAC, with dual redundant power inputs. Phoenix terminal wiring; reverse-polarity protection is built in so normal reverse connection will not damage the device.

  • What are the operating temperature range and protection rating of industrial switches?

    +

    All-metal aluminum alloy housing. Operating temperature is -40°C to +75°C; premium wide-temperature models reach -40°C to +85°C. Typical enclosure rating is IP40.

Features

All Gigabit ports

Backplane bandwidth up to 52Gbps

Wide and diverse power input options

Rust-free aluminum alloy housing with hex socket screws

Wire-speed forwarding and auto MDI/MDI-X on all ports; long-distance capable

Supports IEEE 802.3af/at PoE

Surge protection: power ±4 kV, Ethernet ±4 kV

Compact, easy to install, plug-and-play

Fanless design; wide-temperature quiet operation

MTBF ≥ 300,000h

Specifications

  • Switching Performance-

    Backplane bandwidth14Gbps (6-port models)
    20Gbps (10-port models)
    52Gbps (12-port models)
    Switching Technologystore-and-forward
    MAC Address Table2K (6-port models)
    4K (10-port models)
    8K (12-port models)
    packet buffer size2Mbit (6-port models)
    2Mbit (10-port models)
    4.1 Mbit (12-port models)
    switching rate148,800 pps/FE port; 1,488,000 pps/GE port

  • Power Parameters+

    Power Connection1 removable 5-PIN terminal
    Input voltage48~54 VDC, dual input
    overload current protectionsupport
    reverse polarity protectionsupport
    Power consumption≤15 W (excluding PD)

  • Physical Characteristics+

    Mounting methodDin-Rail mounting
    shellaluminum alloy housing
    protection ratingIP40
    Dimensions (W×H×D)42mm × 110mm × 105mm (6-port models)
    42mm × 140mm × 110mm (10/12-port models)
    Weight<0.6kg

  • Mechanical Characteristics+

    vibrationIEC 60068-2-6
    impactIEC 60068-2-27
    free fallIEC 60068-2-31
    circuit boardCompliant with IPC standards

  • Temperature Characteristics+

    Storage Temperature-40°C ~ +85°C
    Operating temperature-40°C ~ +75°C
    humidity5% ~ 95% (non-condensing)

  • Electromagnetic Characteristics+

    EMI radiationFCC 47 CFR Part 15 Class A
    EN55032 Class A
    EN55035 Class A
    EMCIEC(EN)61000-4-2, Level 4
    IEC(EN)61000-4-4, Level 4
    IEC(EN)61000-4-5, Level 4
    IEC(EN)61000-4-6, Level 3
    IEC(EN)61000-4-8, Level 5

  • Industry Certification & Testing+

    Product SafetyEN 62368-1
    EMCEN 55032
    EN 55035
    EN I EC61000-3-2
    EN 61000-3-3
    FCC Part 15 Subpart B C lass A
    otherMPS test report, telecom network access license, RoHS

Dimensions

DimensionsDimensionsDimensions

Accessories

modelProduct Specification
SDS300-A6P2040TPPAT4000 Series 28-port controllable Patriot Layer-2 power industrial switch is self-developed by MRD (Shanghai Boying) on domestic CPU, switch chip, PHY, OS and software—secure and controllable from PHY to core software. Uses 100% domestic parts with 100% localization.
SDS300-A10P2080TPPAT4000 Series indigenous controllable Patriot rackmount full Layer-3 industrial switch is self-developed by MRD (Shanghai Boying) on domestic CPU, switch chip, PHY, OS and software—secure and controllable from PHY to core software. Uses 100% domestic parts with 100% localization.
SDS300-A12P4080TPAll-aluminum 6-port unmanaged PoE industrial switch: 2×100/1000BaseX SFP (no SFP module) + 4×10/100/1000BaseT PoE, DIN-rail. IP40, -40°C~+75°C. Redundant dual power (48~54VDC). Power cord ordered separately.

Hotline: 86-21-58330762

Zip: 201203

Email: sales@mrdcom.net

Address: No.123 Curie Road, China (Shanghai) Pilot Free Trade Zone

Copyright 2026 MRD Co LTD . All Rights Reserved Shanghai ICP No.12035199

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