Front View
Rear View
28 Port Gigabit Layer 3 Managed Network Switch (24 Port GbE, 4 SFP)
RG-NBS51-24G4S
Product Summary
The RG-NBS51-24G4S is a 28-port Layer 3 cloud-managed switch designed for high-performance commercial and enterprise networks. It features 24 Gigabit Ethernet ports, four Gigabit SFP uplinks and a 56 Gbps switching capacity. Advanced IPv4/IPv6 routing, VLAN, QoS and security features provide efficient, protected network management. With 6kV surge protection and lifetime-free Ruijie Cloud management, it delivers reliable performance and convenient remote administration.
View More Networking and Data
5-Year Manufacturer’s Warranty
For full terms & conditions, please see – Ruijie Warranty T&Cs.
Features and Benefits
- 24 Gigabit Ethernet ports provide fast, reliable connectivity for computers, servers, cameras and other network devices.
- Four Gigabit SFP uplinks enable flexible fibre connections between switches, buildings and network infrastructure.
- 56 Gbps switching capacity and a 41.66 Mpps forwarding rate deliver smooth performance across high-traffic networks.
- Advanced Layer 3 features, including IPv4/IPv6 static routing, OSPF and DHCP services, simplify larger network deployments.
- VLAN, QoS, ACL, port isolation and 6kV surge protection help improve network performance, security and reliability.
- Lifetime-free Ruijie Cloud management enables convenient remote configuration, monitoring and maintenance through the Ruijie Reyee App.
Specifications
Hardware Specifications
Port Specifications
| Total number of RJ45 ports | 24 |
| Total number of optical ports | 4 |
| Number of 1GE combo ports | No |
| Number of 1GE SFP ports | 4 |
| Number of 10GE SFP+ ports | No |
| Number of 10/100BASE-T ports | No |
| Number of 10/100/1000BASE-T ports | 24 |
| Number of 10/100/1000/2500BASE-T ports | No |
| Number of 100/1000/2.5G/5G/10GBASE-T ports | No |
| Module slots | No |
| Reset button | 1 |
| DIP switch | No |
Power Supply and Consumption
| Power input | 220 V AC power supply: • Rated input voltage: 100 V AC to 240 V AC, 50/60 Hz • Maximum input voltage: 90 V AC to 264 V AC, 47 Hz to 63 Hz • Maximum input current: 1.5 A |
| Maximum power consumption | 28.028 W |
| Power output | No |
| Power supply | Fixed power supply |
System Specifications
| RAM | 512 MB |
| Flash memory | 256 MB |
| Forwarding rate | 41.66 Mpps |
| Switching capacity | 56 Gbps(bit/s) |
Dimensions and Weight
| Casing | Metal |
| Product dimensions (W x D x H) | 440 mm x 207.5 mm x 43.6 mm (17.32 in. x 8.17 in. x 1.72 in.) |
| Weight | 2.9 kg (6.39 lbs) (without packaging materials) |
| Shipping weight | 4.02 kg (8.86 lbs) |
Environment and Reliability
| Hot swapping of fan modules | No |
| Fan | 1 x fixed fan |
| Cooling | Air cooling, left-to-rear airflow |
| Acoustic noise | 25°C (77°F): 45 dB |
| Mounting options | Rack |
| Hot swapping of cables | Service ports support hot swapping of cables. |
| MTBF | 400,000 hours |
| Operating temperature | 0°C to +50°C (32°F to 122°F) |
| Storage temperature | −40°C to +70°C (−40°F to +158°F) |
| Operating humidity | 10% RH to 90% RH (non-condensing) |
| Storage humidity | 5% RH to 95% RH (non-condensing) |
| Altitude | Operating altitude: −500 m to +5,000 m (−1,640.42 ft. to +16,404.20 ft.) Storage altitude: −500 m to +5,000 m (−1,640.42 ft. to +16,404.20 ft.) |
| Corrosion class | No |
| ESD protection | Contact discharge: 6 kV Air discharge: 8 kV |
| Surge protection | Service port: ±6 kV for common mode Power connector: ±6 kV for both common mode and differential mode |
Certification and Regulatory Compliance
| EMC | EN 55032 EN 61000-3-2 EN 61000-3-3 EN 55035 EN 300 386 |
| Safety compliance | IEC 62368-1 |
| Certification | CE, FCC |
Software Specifications
Authentication
| RADIUS | Yes |
| 802.1X authentication | Yes |
| Port-based 802.1X authentication | Yes |
| MAC address-based 802.1X authentication | Yes |
| Guest VLAN | Yes |
Basic Configurations
| PoE watchdog | No |
| Online upgrade | Yes |
Ethernet Switching
| Maximum number of VLANs | 4094 |
| Maximum number of MAC address entries | 16000 |
| Interface flow control | Yes |
| MAC address-based VLAN | No |
| IP subnet – based VLAN assignment | No |
| IEEE 802.1Q VLAN | Yes |
| Basic QinQ | No |
| VLAN configuration supported on LAN ports | Yes |
| Voice VLAN | Yes |
| STP (IEEE 802.1d) | Yes |
| RSTP (IEEE 802.1w) | Yes |
| MSTP (IEEE 802.1s) | Yes |
| LLDP | Yes |
| LLDP-MED | Yes |
| Static MAC address | Yes |
| MAC address filtering | Yes |
| Static aggregation | Yes |
| LACP | Yes |
| Inbound or outbound rate limiting based on interface traffic | Yes |
Gateway Features
| 802.1p priority-based traffic classification | Yes |
| DSCP priority-based traffic classification | Yes |
| Egress queues based on 802.1p and DSCP priorities | Yes |
| SP | Yes |
| WRR | Yes |
| SP+WRR | Yes |
| Global QoS | Yes |
Interface
| Jumbo frame length (MTU) | 9216 bytes (interface configuration mode) |
| EEE | Yes |
| Cable test | Yes |
IP Routing
| Maximum number of IPv4 static routes | 500 |
| IPv6 routing table size (network route) | 128 |
| Maximum number of IPv6 static routes | 128 |
| IPv4 static route | Yes |
| IPv6 static route | Yes |
| OSPFv2 | Yes |
| OSPFv3 | Yes |
IP Service
| Maximum number of ARP entries | 2000 |
| IPv4 routing table size (host route) | 6000 |
| ARP | Yes |
| IPv4 ping | Yes |
| IPv4 traceroute | Yes |
| IPv6 | Yes |
| ICMPv6 | Yes |
| IPv6 ping | Yes |
| IPv6 traceroute | Yes |
| DNS client | Yes |
| DNSv6 client | Yes |
| DHCP relay | Yes |
| DHCP server | Yes |
| DHCP client | Yes |
Multicast
| IGMPv1 snooping | Yes |
| IGMPv2 snooping | Yes |
| Basic IGMPv3 snooping | Yes |
| Full IGMPv3 snooping | Yes |
| IGMP filtering | Yes |
| IGMPv1, v2, and v3 | Yes |
Network Management and Monitoring
| Port mirroring | Yes |
| Mirroring | Yes |
| HTTP login | Yes |
| HTTPS login | Yes |
| RLOG | Yes |
| SON | Yes |
| Syslog | Yes |
| Client auto-discovery | Yes |
| PoE service failure | No |
| PoE power overload | No |
| SSH | No |
| Camera detection | Yes |
| Loop alarm | Yes |
| MAC address entries | Yes |
| IP address pool conflicts | Yes |
| Full ARP table | Yes |
| eWeb management | Yes |
| Ruijie Cloud management | Yes |
| Ruijie Reyee App management | Yes |
| SNMPv1, v2c, and v3 | Yes |
Reliability
| System dual backup | Yes (Only supported on devices with a factory-installed software version of ReyeeOS 2.320 or later) |
| Enabling dual backup for the partition Uboot (based on a single flash memory) | Yes |
| Load balancing | No |
| ERPS | Yes |
Security
| Maximum number of ACEs | Number of ACEs in the inbound direction of an interface: 1900 Number of ACEs in the outbound direction of an interface: 0 |
| Port isolation | Yes |
| Broadcast storm control | Yes |
| Multicast storm control | Yes |
| Unknown unicast storm control | Yes |
| DHCP snooping | Yes |
| Standard ACL | Yes |
| Extended MAC ACL | Yes |
| Extended IP ACL | Yes |
| IPv6 ACL | Yes |
| IP-MAC-port binding | Yes |
| ARP anti-spoofing | Yes |
| IP source guard | Yes |
| CPU Protection Policy | Yes |
System Performance Capacity
| Recommended camera limit | 200 W H265: 350 400 W H265: 170 |
Package Contents
Device
| Device | 1 |
Accessories
| Rubber pad | 4 |
| Power cord retention clip | 1 |
| Screw | 8 M4 x 8 mm cross recessed countersunk head screws |
| Grounding cable | 1 x 1 m (3.28 ft.) |
| Power cord | 1 x 1.5 m (4.92 ft.) |
| Rack-mount bracket | 2 |
Manual
| User Manual | 1 |
| Warranty Card | 1 |
Downloads
Product Image Product Image (Back) Brochure Full Product CatalogueView and download User Documents and Manuals directly from Reyee under the 'Resources' tab.