Supports MRD-Ring® Ethernet ring; node recovery <5 ms, ring recovery <50 ms (typical)
Any two ports can form a self-healing ring; multiple independent rings supported
Layer-2 QoS rate limiting and traffic shaping enable tiered Ethernet bandwidth services
Full professional NMS and alarm tools with OPC support
The TNM4000 backbone industrial switch is a standard 19-inch rack-mount 4U 10-slot chassis with 7 service slots (4×1.0G, 2×2.5G, 1×10G) + 2 (1+1 redundant) power slots + 1 main-control slot (with 1 T4K-MGT-II module), supporting up to 72 service ports. All modules support online upgrade. All TNM4000 models share unified optics and OS software for a future-ready architecture and consistent operations that improve utilization. Patented MRD-Ring® self-healing ring technology uses hardware algorithms to ensure per-node recovery < 5 ms and ring recovery < 50 ms (typical). TNM4000 also supports standard xSTP and can form redundant topologies with third-party gear while keeping fast self-healing. High backplane capacity and multiple interface modules switch/route Layer-2 traffic efficiently; PTN-based modules support packet-switched services. The series offers high stability/reliability with local and remote monitoring of key parameters, and uses unique extended industrial-grade design for harsh and field environments.
The cable is connected, but the port will not come UP / the link is down. What should I check?
+What are the PoE power specifications?
+Which ring protocols are supported, and what is the self-healing time?
+How should I choose between Layer-2 and Layer-3 industrial switches?
+Can non-OEM SFP optical modules work normally?
+How do I restore factory settings if I forget the device login password?
+What are the power supply requirements for industrial switches?
+What are the operating temperature range and protection rating of industrial switches?
+The PAT300 series fully domestic DIN-rail unmanaged industrial switch uses fully domestic design with homegrown controllable chips and software for supply-chain and information security. Dual 9.6~60VDC inputs, DIN-rail mounting, industrial resin housing with corrosion-/oxidation resistance, IP40, high-level EMI/EMC tests and strict burn-in meet security-industry requirements.
Supports MRD-Ring® Ethernet ring; node recovery < 5 ms; ring recovery < 50 ms (typical)
Supports Any two ports can form a self-healing ring, and multiple independent self-healing rings
Built-in unified MicOSTM RTOS for all Meridian MRDTM switches
Provides packet-loss protection and fast recovery from network faults
Full aluminum alloy all-black TOM1000 series 10-port DIN-rail unmanaged industrial switch: 8×10/100/1000BaseT + 2×100/1000BaseX SFP (modules not included). IP40; operating temperature -40°C ~ +75°C; MTBF≥400,000 hours. Redundant dual isolated power (24~240VDC/100~240VAC). Power cord sold separately.
The TNM4000 managed Layer-2 industrial switch is fanless with redundant dual power inputs and supports redundant rings and RSTP/STP to improve system reliability and backbone availability.
Layer-2 QoS rate limiting and traffic shaping enable tiered Ethernet bandwidth services
Provides static/dynamic CPU resource allocation and limiting, with real-time monitoring of key parameters including CPU usage, RAM, supply voltage and motherboard voltage
MTX140 series uses redundant 12/24/48 VDC and 24VAC inputs with DIN-rail mounting and high-level EMC tests. Compact size with 100% burn-in testing for reliable operation.
Fanless-40oC to +85oCoperating ambient temperature
MTBF reaches 800,000 hours
TNM4000 backbone industrial switch
IEEE 802.3 CSMA/CD method and physical Layer
specifications CSMA/CD method and physical layer specifications
IEEE 802.1p Priority Queuing Priority Queuing
IEEE 802.1q VLAN tagging VLAN Tagging
IEEE 802.1d Spanning Tree Algorithm Spanning Tree Protocol
IEEE 802.1w Rapid Spanning Tree Rapid Spanning Tree Protocol
IEEE 802.1s Multiple Spanning Tree Multiple Spanning Tree Protocol
IEEE 802.3ac VLAN Tagging VLAN Tagging
IEEE 802.1x Authentication Authentication
IEEE 802.3ad Link Aggregation Link Aggregation
IEEE 802.3x Flow Control Flow Control
IEEE 802.3 Ethernet Ethernet
IEEE 802.3u Fast Ethernet Fast Ethernet
IEEE 802.3z Gigabit Ethernet Gigabit Ethernet
IEEE 802 Networks Networks
RFC 768 UDP User Datagram Protocol
RFC 791 IP Internet Protocol
RFC 792 ICMP Internet Control Message Protocol
RFC 793 TCP Transmission Control Protocol
RFC 826 ARP Address Resolution Protocol
RFC 854 Telnet Client & Server Telnet Client & Server
RFC 904 Exterior Gateway Protocol Formal Specifi- cation Exterior Gateway Protocol
RFC 1027 Using ARP to Implement Transparent Subnet Gateways Proxy ARP
RFC 1058 RIP Routing Information Protocol
RFC 1059, 1119 NTPv1/2 Network Time Protocol v1 and v2
RFC 1112 IGMP Host Extensions for IP Multicasting
RFC 1191 Path MTU Discovery Path MTU Discovery
RFC 1256 ICMP Router discovery protocol ICMP Router Discovery Protocol
RFC 1267 A Border Gateway Protocol 3 (BGP-3) Border Gateway Protocol
RFC 1388 RIP Version 2 Carrying Additional Infor- mation Routing Information Protocolv2
RFC 1519 CIDR (Classless Inter-domain Routing)Classless Inter-Domain Routing
RFC 1542 Bootstrap Extensions & DHCP DHCP relay agent
RFC 1587 OSPF NSSA OSPF
The TNM4000 rack-mount 28-port Layer-2 industrial switch is widely used in transportation, energy and industrial control. All models share a unified OS for a future-oriented standardized architecture that improves utilization through consistent operations. Beyond stable, reliable, secure high-performance services, it offers flow analysis, policy-based QoS and controllable multicast optimization, with high bandwidth, VLAN support and easy maintenance for large industrial networks.
RFC 1812 Requirements for IP Version 4 Routers Requirements for IP Version 4 Routers
RFC 1851 The ESP Triple DES Transform ESP Triple DES Transform
Gigabit multi-mode SFP (850nm), LC, max 550 m; MRD-MGIGA-GSX Gigabit multi-mode SFP (1310nm), LC, max 2 km
RFC 1994 PPP Challenge Handshake Authen- tication Protocol (CHAP)
RFC 2068 HTTP Hypertext Transfer Protocol
RFC 213 DHCP Server DHCP Server
RFC 2138 RADIUS Remote Authentication Dial-In User Service
RFC 2139 RADIUS Accounting RADIUS Accounting
RFC 2236 IGMPv2 IGMPv2
RFC 2328 OSPF V2 OSPF v2
RFC 2338 VRRP Virtual Router Redundancy Protocol
RFC 2362 PIM-SM/DM PIM Sparse/Dense Mode
RFC 2370 The OSPF Opaque LSA Option OSPF Opaque LSA Option
RFC 2474 DiffServ Precedence
RFC 2475 DiffServ Core and Edge Router Func- tions
RFC 2597 DiffServ Assured Forwarding
RFC 2598 DiffServ Expedited Forwarding
RFC 2644 Directed Broadcasts Directed Broadcasts
RFC 3046 DHCP Relay Agent Information Option DHCP Relay Agent Information Option
RFC 3222 Forwarding Information Base (FIB) Forwarding Information Base
GMRP GARP Multicast Registration Protocol
GVRP GARP VLAN Registration Protocol
SSH2 Secure Shell 2
IGMP snooping IGMP snooping
SNMPv1/v2/v3 SNMPv1/v2/v3
TNM4000 backbone industrial switch
| Backplane bandwidth | 304Gbps |
| Processor | MIPS32 |
| Switching Technology | ASIC-based store-and-forward |
| MAC address table | 16K |
| Buffer | 2MB |
| switching rate | 148,800 pps/FE port; 1,488,000 pps/GE port |
| Management Methods | Browser, Serial, STD-17 MIB-II, STD-58 SMIv2, STD-59 RMON, STD-62 SNMPv3， SNMPv2c， SNMPv1， RFC2668 MAU， RFC2925 Ping MIB， MRD Private MIBs |
| Diagnostics | LEDs, log files, relay, RMON, port mirroring, TRAP |
| Redundancy | MRD-Ring® , MSTP, RSTP, link aggregation |
| time synchronization | NTP， SNTP |
| Other | IPv4/IPv6 multicast , storm control, MC/BC protection, Supports Jumbo Frame |
| MTBF | Over 800,000 hours |
| storage temperature | -40℃ ~ 85℃ |
| Operating temperature | -40℃ ~ 85℃ |
| Humidity | 5% ~ 95%, non-condensing |
| Dimensions (W×H×D) | 440mm×177mm×343mm |
| protection rating | IP30 |
| Weight | 12 kg (max) |
| Vibration | IEC 60068-2-6 |
| Shock | IEC 60068-2-27 |
| free fall | IEC 60068-2-31 |
| PCB | Compliant with IPC standards TNM4000 backbone industrial switch |
| EMI radiation | FCC 47 CFR Part 15 Class A EN55032 Class A EN55035 Class A |
| EMC | IEC(EN)61000-4-2, Level 4 IEC(EN)61000-4-4, Level 4 IEC(EN)61000-4-5, Level 4 IEC(EN)61000-4-11, Level 4 IEC(EN)61000-4-12, Level 4 |
| Product Safety | CE.CB.IEC.IECEE IEC/EN60950-1 FCC Part 15 Subpart B Class A |
| hazardous area | UL/cUL1604 Class 1 Div 2 (certification in progress) |
| transportation industry | JT/T817-2011; NEMA-TS2 (certification in progress) |
| rail industry | EN50121-4 |
| power industry | IEC61850-3 IEEE1613（C37.90.x） |
| industrial control industry | UL/cUL61010 |
| shipbuilding industry | GL (certification in progress) TNM4000 backbone industrial switch |
| Model | Product Specification |
| TNM4000 | Chassis model description |
| TNM4000-F-Chassis | Full aluminum alloy fanless TNM4000 backbone Layer-3 routing industrial switch chassis; corrosion-/oxidation-resistant and never rusts. Standard 19-inch rack-mount 4U 10-slot structure. 8 service slots (1 main-control slot with 1 T4K-MGT-II main-control module, 4×1.0G slots, 2×2.5G slots, 1×10G slot) + 2 (1+1 redundant) power slots; up to 72 service ports. Operating temperature -40~85°C; MTBF over 800,000 hours; EMC meets industrial Level-4; CE, FCC, UL61010 industrial safety certifications; IP30. Management module: T4K-MGT-II TNM4000 backbone switch Type-II main board — management interfaces include 1 Ethernet + 1 CLI + 1 alarm relay + 1 clock interface, plus 1 USB and 1 SD slot for ACA. Port modules: T4K-LM-I-I 1.0G slot module, 8 Gigabit copper, hot-swap and online upgrade; T4K-LM-II-I 2.5G slot module, 8×1.0G/2.5G SFP, hot-swap and online upgrade; T4K-LM-II-II 2.5G slot module, 8 Gigabit copper + 8 GE/FE combo SFP, hot-swap and online upgrade; T4K-LM-III-IV 10G slot module, 8×1.0G/2.5G/10G SFP+, hot-swap and online upgrade. Power module: T4K-120W-HV 100-240VAC 120W wide-temp passive-cooling industrial PSU. Blank panel: T4K-PAN-BLK TNM4000 slot blank with single-rib pure-copper shielding. SFP/XFP optics: MRD-SFP-GLX FE single-mode SFP (1310nm), LC, max 20 km; MRD-SFP-GEX FE single-mode SFP (1310nm), LC, max 40 km; MRD-SFP-GZX FE single-mode SFP (1550nm), LC, max 80 km |
| MRD-SFP-GSX-850 | FE multi-mode SFP (850nm), LC, max 2 km; MRD-SFP-GSX FE multi-mode SFP (1310nm), LC, max 2 km |
| MRD-SFP-GLX-13 | BiDi FE single-mode SFP (1310nm Tx/1550nm Rx), LC, max 20 km |
| MRD-SFP-GLX-15 | BiDi FE single-mode SFP (1550nm Tx/1310nm Rx), LC, max 20 km |
| MRD-SFP-GEX-13 | BiDi FE single-mode SFP (1310nm Tx/1550nm Rx), LC, max 40 km |
| MRD-SFP-GEX-15 | BiDi FE single-mode SFP (1550nm Tx/1310nm Rx), LC, max 40 km; MRD-MGIGA-GLX Gigabit single-mode SFP (1310nm), LC, max 20 km; MRD-MGIGA-GEX Gigabit single-mode SFP (1310nm), LC, max 40 km; MRD-MGIGA-GZX Gigabit single-mode SFP (1550nm), LC, max 80 km |
| MRD-MGIGA-GSX-850 | Gigabit multi-mode SFP (850nm), LC, max 550 m; MRD-MGIGA-GSX Gigabit multi-mode SFP (1310nm), LC, max 2 km |
| MRD-MGIGA-GLX-13 | BiDi Gigabit single-mode SFP (1310nm Tx/1550nm Rx), LC, max 20 km |
| MRD-MGIGA-GLX-15 | BiDi Gigabit single-mode SFP (1550nm Tx/1310nm Rx), LC, max 20 km |
| MRD-MGIGA-GEX-13 | BiDi Gigabit single-mode SFP (1310nm Tx/1550nm Rx), LC, max 40 km |
| MRD-MGIGA-GEX-15 | BiDi Gigabit single-mode SFP (1550nm Tx/1310nm Rx), LC, max 40 km. TNM4000 backbone industrial switch optional accessories (continued). SFP/XFP port module description |
| MRD-G25-GLX | 2.5Gbpssingle-mode SFP (1310nm), LC connector, max distance 20 km |
| MRD-G25-GEX | 2.5Gbpssingle-mode SFP (1310nm), LC connector, max distance 40 km |
| MRD-G25-GZX | 2.5Gbpssingle-mode SFP (1550nm), LC connector, max distance 80 km |
| MRD-G25-GSX-850 | 2.5Gbpsmulti-mode SFP (850nm), LC connector, max distance 300 m |
| MRD-10GLS-LC | 10G single-mode SFP+ (1310nm), LC connector, max distance10 km |
| MRD-10GRS-LC | 10G single-mode SFP+ (1310nm), LC connector, max distance20 km |
| MRD-10GES-LC | 10G single-mode SFP+ (1550nm), LC connector, max distance40 km |
| MRD-10GZS-LC | 10G single-mode SFP+ (1550nm), LC connector, max distance80 km |
| MRD-10GSS-LC-850 | All-black full aluminum alloy 28-port industrial switch: 16×10/100/1000BaseT + 8×100/1000Base(X/T) Combo + 4×100/1000/10000BaseX SFP, rack-mount. IP30; operating temperature -40°C ~ +75°C. Redundant dual isolated power (100~240VAC). One power cord included. |
| PCORDAC-CN-15 | The TCC4100 railway onboard IP54/IP67 switch offers high stability/reliability with local/remote monitoring of key parameters. Unique extended industrial-grade design suits harsh and field environments. |
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Zip: 201203
Email: sales@mrdcom.net
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