Home / Product Center / Industrial Ethernet / MIC Ethernet Switch / MIC Ethernet Switch / PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Indust...

PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch
PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch
PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch
PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch
PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch
PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch

PAT4000 Series All-Domestic 28-Port Rackmount Layer-2 Industrial Switch

Supports multiple redundant rings; any two ports can form a self-healing ring; multiple independent rings supported

Supports QoS (IEEE 802.1P/1Q and TOS/DiffServ)

Supports CLI, Telnet, Web management and SNMPv1/v2c/v3 NMS

IP40 protection rating

Get a Quote Claim Coupon Download
Download

Product Overview

MTX100 3-port unmanaged industrial switch, die-cast aluminum housing. 1 fixed fiber (MM, 5 km, ST) + 2×10/100BaseT. IP30, -40°C~+75°C. 12/24/48 VDC (9.6~60VDC) & 24VAC (18~30VAC) (Class 2 power only).

PAT4000 Series all-domestic 28-port rackmount Layer-2 industrial switch supports 16×GE copper + 8×FE/GE Combo + 4×FE/GE SFP—suited to large industrial networks.

PAT4000 Series all-domestic 28-port rackmount Layer-2 industrial switch supports IGMP Snooping, IEEE 802.1Q VLAN, port-based VLAN, QoS and port mirroring. Ethernet redundancy via RSTP/STP/MSTP improves reliability and backbone availability. Rugged aluminum alloy housing for industrial use with optional fiber.

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

Core CPU, switch chip and PHY use domestic chips, with a domestic-IP Linux OS

Supports multiple redundant rings; any two ports can form a self-healing ring; multiple independent rings

Provides packet-loss protection with fast recovery from network faults

Supports IGMP Snooping and GMRP

Supports port-based unicast MAC binding

Supports multiple multicast protocols with strong security

Supports broadcast storm control (enabled by default)

Supports QoS (IEEE 802.1P/1Q and TOS/DiffServ)

Supports CLI, Telnet, Web management and SNMPv1/v2c/v3 NMS

Supports RMON

Supports port mirroring

Redundant dual power input design

IP40 protection rating

Fanless, operating temperature -40°C to +85°C

Specifications

IEEE 802.3 CSMA/CD method and physical Layer specifications

IEEE 802.1p Priority Queuing

IEEE 802.1q VLAN tagging

IEEE 802.1d Spanning Tree Algorithm

IEEE 802.1w Rapid Spanning Tree

IEEE 802.1s Multiple Spanning Tree

IEEE 802.3ac VLAN Tagging

IEEE 802.1x Authentication

IEEE 802.3ad Link Aggregation

IEEE 802.3x Flow Control

IEEE 802.3 Ethernet

IEEE 802.3u Fast Ethernet

IEEE 802.3z Gigabit Ethernet

IEEE 802 Networks

RFC 768 UDP

RFC 791 IP

RFC 792 ICMP

RFC 793 TCP

RFC 826 ARP

RFC 854 Telnet Client & Server

RFC 862 Echo Protocol

RFC 863 Discard Protocol

RFC 867 Daytime Protocol

RFC 868 Time Protocol

RFC 1027 Using ARP to Implement Transparent Subnet Gateways

RFC 1059, 1119 NTPv1/2

RFC 1191 Path MTU Discovery

RFC 1851 The ESP Triple DES Transform ESP

RFC 1866 HTML HTML

RFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)

RFC 2068 HTTP

RFC 2138 RADIUS

RFC 2139 RADIUS Accounting

RFC 2236 IGMPv2

RFC 2474 DiffServ Precedence

RFC 2597 DiffServ Assured Forwarding

RFC 2598 DiffServ Expedited Forwarding

RFC 2644 Directed Broadcasts

RFC 2865 Remote Authentication Dial in User Service (RADIUS)

GMRP GARP

GVRP GARP

SSH2 Secure Shell 2

IGMP snooping IGMP

SNMPv3

  • Switching Performance -

    Backplane Bandwidth56Gbps
    Processor1.0G dual core
    Switching Technologystore-and-forward
    MAC Address Table8K
    Packet Buffer3 Mbits
    Switching Rate148,800 pps/FE port; 1,488,000 pps/GE port

  • Software Features-

    Management MethodsBrowser, serial, STD-17 MIB-II, STD-58 SMIv2, STD-59 RMON, STD-62 SNMPv3, SNMPv2c, SNMPv1, RFC2668 MAU, RFC2925 Ping MIB, MRD Private MIBs
    DiagnosticsIndicators, logs, relay, RMON, port mirroring, TRAP
    RedundancyRSTP, STP, MSTP, link aggregation
    time synchronizationNTP
    other4K VLANs, IPv4/IPv6 multicast, storm control, Jumbo Frame

  • Power Parameters+

    Terminals1 removable 5-PIN terminal
    Input voltage100~240VAC (50~60Hz) / 24~240VDC, dual input
    power≤50W
    overload current protectionsupport
    reverse polarity protectionsupport

  • Physical Performance+

    Mounting methodRackmount
    shellaluminum alloy housing
    Dimensions (W×H×D)442mm×43.8mm×335mm
    protection ratingIP40
    Weight≤2.7 Kg

  • Environmental Characteristics+

    Storage Temperature-40℃ ~ 85℃
    operating temperature-40℃ ~ 85℃
    humidity5% ~ 95%, non-condensing

  • Mechanical Characteristics+

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

  • 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)61000-4-9, Level 5

  • Industry Certification & Testing+

    Product SafetyCE.CB.IEC.IECEE
    IEC/EN62368-1
    FCC Part 15 Subpart B C lass A
    hazardous areaUL/cUL1604 Class 1 Div 2 (pending)
    transportation industryJT/T817-2011; NEMA-TS2 (pending)
    rail industryEN50121-4
    power industryIEC61850-3
    IEEE1613（C37.90.x）
    industrial control industryUL/cUL61010 (pending)
    shipbuilding industryGL (pending)

Dimensions

Dimensions

Accessories

modelProduct Specification
PAT4000-ISB28UU4GX8GC16GTAll-black Centauri 28-port standard 19-inch rackmount Layer-2 industrial switch: 16×10/100/1000BaseT + 8×100/1000Base(X/T) Combo + 4×100/1000BaseX SFP. 1 CLI, 1 relay. Redundant dual isolated power (24~240VDC/100~240VAC). Specs subject to change without notice. Tel: 86-21-58330762 Fax: 86-21-58330763

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

Top

Get a Quote

Leave your details and we will provide a quotation for this product.

Download

Leave your details. After successful submission, you can download the materials.