Core CPU, switch chip and PHY use domestic chips with a domestic-IP Linux OS
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
Supports power SV sample-frame switching delay accumulation; accuracy better than 200 ns
Patriot PAT Series indigenous controllable dual-100% 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. Dual 100% localization (100% domestic component types and quantities, excluding Taiwan).
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?
+Core CPU, switch chip and PHY use domestic chips, with a domestic-IP Linux OS
Supports MRD-Ring® Ethernet ring; per-node recovery <5 ms, ring recovery <50 ms (typical)
Any two ports can form a self-healing ring; multiple independent rings supported
Comply with DL/T 860 (IEC 61850) modeling and communication methods
Supports power SV sample-frame switching delay accumulation, accuracy better than 200 ns
Supports traffic-control thresholds for SV & GOOSE frames
Provides MMS port with time sync and status reporting
Supports port-based unicast MAC binding
Supports broadcast storm control (enabled by default)
Supports default priority override for power frames (GOOSE, GSE, SV)
Supports CSD offline configuration
Provides packet-loss protection with fast recovery from network faults
Supports multiple multicast protocols with strong security
Layer-2 QoS rate limiting and traffic shaping enable tiered Ethernet bandwidth services
Static/dynamic CPU allocation and limits; real-time monitoring of CPU utilization, memory usage, device temperature, etc.
Supports CLI, Telnet, Web management and SNMPv1/v2c/v3 NMS
IP40 protection rating
Redundant dual power input design
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 802.1x Authentication
IEEE 802.3ac VLAN Tagging
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 1027 Using ARP to Implement Transparent Subnet Gateways
RFC 1059,1119 NTPv1/2
RFC 1112 IGMP IP
RFC 1191 Path MTU Discovery
RFC 1542 Bootstrap Extensions & DHCP DHCP
RFC 1851 The ESP Triple DES Transform ESP
RFC 1866 HTML HTML
RFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)
RFC 2068 HTTP
RFC 213 DHCP Server DHCP
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 User Service (RADIUS)
RFC 3046 DHCP Relay Agent Information Option DHCP
RFC 3222 Forwarding Information Base (FIB)
GMRP GARP
GVRP GARP
SSH2 Secure Shell 2
IGMP snooping IGMP
SNMPv3
| Backplane Bandwidth | 136Gbps |
| Processor | 1.0G dual core |
| Switching Technology | store-and-forward |
| MAC Address Table | 196K |
| Packet Buffer | 9MB |
| 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 | Indicators, logs, relay, RMON, port mirroring, TRAP |
| Redundancy | MSTP, RSTP, link aggregation |
| time synchronization | NTP ，SNTP |
| other | IPv4/IPv6 multicast, storm control, MC/BC protection, Jumbo Frame |
| Terminals | 1 removable 5-PIN terminal |
| Input voltage | 100~240VAC (50~60Hz) & 100~240VDC, dual input |
| Power consumption | ≤40W |
| overload current protection | support |
| reverse polarity protection | support |
| Dimensions (W×H×D) | 440mm×43.8mm×300mm |
| shell | aluminum alloy housing |
| Mounting method | Rackmount |
| protection rating | IP40 |
| Weight | ≤4.0kg |
| MTBF | ≥20,000H |
| Storage Temperature | -40°C ~ +85°C |
| Operating temperature | -40°C ~ +70°C |
| humidity | 5% ~ 95% (non-condensing) |
| vibration | GB/T 15153.2-2000 |
| impact | GB/T 15153.2-2000 |
| free fall | GB/T 15153.2-2000 |
| circuit board | Compliant with IPC standards |
| EMI radiation | FCC 47 CFR Part 15 Class A EN55032 Class A EN55035 Class A |
| EMC | GB/T 17626.2, Level 4 GB/T 17626.3, Level 3 GB/T 17626.4, Level 4 GB/T 17626.5, Level 4 GB/T 17626.6, Level 3 GB/T 17626.8, Level 5 GB/T 17626.9, Level 5 GB/T 17626.10, Level 5 GB/T 17626.18, Level 3 GB/T 17626.16, Level 4 GB/T 17626.29 ，0% ，100ms GB/T 17626.11, 0%, 250 cycles Q/CSG 1204005.67.7-2014 |
| model | Product Specification |
| MRD-PAT4GP2-N-F16G4 | Rackmount 20-port 1U CSG indigenous controllable Four-Unified switch (with delay accumulation): 16×100BaseX SFP + 4×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4GP3-N-G16 | Rackmount 16-port 1U CSG indigenous controllable Four-Unified switch (with delay accumulation): 16×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-Z-E24G4 | Rackmount 28-port 1U SGCC indigenous controllable Four-Unified switch: 24×10/100BaseT + 4×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-G-F16G4 | Rackmount 20-port 1U SGCC indigenous controllable Four-Unified switch (no delay accumulation): 16×100BaseX SFP + 4×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-G-G16 | Rackmount 16-port 1U SGCC indigenous controllable Four-Unified switch (no delay accumulation): 16×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-Z-G24G4 | Rackmount 28-port 1U CSG indigenous controllable automation switch: 24×10/100/1000BaseT + 4×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-Z-G16G4 | SDS300 Series DIN-rail unmanaged PoE industrial switch uses 48~54VDC redundant dual power, DIN-rail, up to 30W per PoE port. Rugged aluminum housing, IP40, high-level EMI/EMC, strict burn-in—meeting industry stability and durability requirements. |
| MRD-PAT4G-Z-G16G2 | Rackmount 18-port 1U CSG indigenous controllable automation switch: 2×10/100/1000BaseT + 16×100/1000BaseX SFP, 1 CLI/MGT combo, 1 relay, dual 100-240V. Includes brackets, monitoring cable and power cord. |
| MRD-PAT4G-Z-F16G2 | SRS2000 Series rackmount unmanaged PoE industrial switch uses 48~54VDC redundant dual power, rackmount, up to 30W per PoE port. Rugged aluminum housing, IP40, high-level EMI/EMC, strict burn-in—meeting industry stability and durability requirements. |
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
