Cisco CBS350-48P-4G 48-Port Gigabit PoE Managed Switch
The Cisco CBS350-48P-4G is a 48-Port Gigabit PoE+ Managed Switch that delivers enterprise-grade performance, intelligent management, and robust security. With 48 PoE/PoE+ ports, 4 Gigabit SFP uplinks, and a 382W PoE power budget, it’s ideal for powering wireless access points, IP cameras, and VoIP phones across professional business networks.
| CBS350-48P-4G Specification | |
| Feature | Description |
| Capacity in Millions of Packets per Second (mpps) (64-byte packets) | 77.38 |
| Switching Capacity in Gigabits per Second (Gbps) | 104.0 |
| Total System Ports | 52 x Gigabit Ethernet |
| RJ-45 Ports | 48 x Gigabit Ethernet |
| Combo Ports (RJ45 + Small form-factor pluggable [SFP]) | 4 x SFP |
| Packet Buffer | 3 MB |
| Unit dimensions (W x D x H) | 445 x 350 x 44 mm (17.5 x 13.78 x 1.73 in) |
| Layer 3 | |
| IPv4 routing | Wirespeed routing of IPv4 packetsUp to 990 static routes and up to 128 IP interfaces |
| IPv6 routing | Wirespeed routing of IPv6 packets |
| Layer 3 Interface | Configuration of Layer 3 interface on physical port, Link Aggregation (LAG), VLAN interface, or loopback interface |
| Classless Interdomain Routing (CIDR) | Support for classless interdomain routing |
| RIP v2 | Support for Routing Information Protocol version 2 for dynamic routing |
| Policy-Based Routing (PBR) | Flexible routing control to direct packets to different next hop based on IPv4 or IPv6 Access Control List (ACL) |
| DHCP Server | Switch functions as an IPv4 DHCP server serving IP addresses for multiple DHCP pools/scopesSupport for DHCP options |
| DHCP relay at Layer 3 | Relay of DHCP traffic across IP domains |
| User Datagram Protocol (UDP) relay | Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BOOTP)/DHCP packets |
| Quality of Service | |
| Priority levels | 8 hardware queues |
| Scheduling | Strict priority and Weighted Round-Robin (WRR) |
| Rate limiting | Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based; 2R3C policing |
| Congestion avoidance | A TCP congestion avoidance algorithm is required to minimize and prevent global TCP loss synchronization |
| iSCSI traffic optimization | A mechanism for giving priority to iSCSI traffic over other types of traffic |
| Green (power efficiency) | |
| Energy Detect | Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link up |
| Cable length detection | Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables. |
| EEE Compliant (802.3az) | Supports IEEE 802.3az on all copper Gigabit Ethernet ports |
| Disable port LEDs | LEDs can be manually turned off to save on energy |
| Time-based port operation | Link up or down based on user-defined schedule (when the port is administratively up) |
| Time-based PoE | PoE power can be on or off based on user-defined schedule to save energy |
| General | |
| Jumbo frames | Frame sizes up to 9K bytes. The default MTU is 2K bytes |
| MAC table | 16K addresses |
| Hardware | |
| USB slot | USB Type-A slot on the front panel of the switch for easy file and image management |
| Buttons | Reset button |
| Cabling type | Unshielded Twisted Pair (UTP) Category 5e or better for 1000BASE-T |
| LEDs | System, Link/Act, PoE, Speed |
| Flash | 256 MB |
| CPU | 800 MHz ARM |
| DRAM | 512 MB |
| Environmental | |
| Storage temperature | -13° to 158°F (-25° to 70°C) |
| Operating humidity | 10% to 90%, relative, noncondensing |
| Storage humidity | 10% to 90%, relative, noncondensing |
| Warranty | Limited lifetime with next business day advance replacement (where available) |
| Package Contents | |
| ● Cisco Business 350 Series Managed Switch● Power Cord (Power adapter for select 8-port and 16-port SKUs) ● Mounting Kit ● Quick Start Guide | |
| Minimum Requirements | |
| ● Web browser: Chrome, Firefox, Edge, Safari● Category 5e Ethernet network cable ● TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installed | |
Table 1 shows the Quick Specs.
| Product Code | CBS350-48P-4G |
| Capacity in Millions of Packets per Second (mpps) (64-byte packets) | 77.38 |
| Switching Capacity in Gigabits per Second (Gbps) | 104.0 |
| Total System Ports | 52 x Gigabit Ethernet |
| RJ-45 Ports | 48 x Gigabit Ethernet |
| Combo Ports (RJ45 + Small form-factor pluggable [SFP]) | 4 x SFP |
| Packet Buffer | 3 MB |
-Advanced Layer 3 Traffic Management
The Cisco Business 350 Series Switches enable a more advanced set of traffic management capabilities to help growing businesses organize their networks more effectively and efficiently. For example, the switches provide dynamic Layer 3 routing, allowing you to segment your network into workgroups and communicate across VLANs without degrading application performance..
Supported Modules
Table 2 shows the Supported SFP/SFP+ modules of Cisco Business 350 Series Managed Switches.
| SKU | Media | Speed | Maximum distance |
| MGBSX1 | Multimode fiber | 1000 Mbps | 500 m |
| MGBLX1 | Single-mode fiber | 1000 Mbps | 10 km |
| MGBLH1 | Single-mode fiber | 1000 Mbps | 40 km |
| MGBT1 | UTP cat 5e | 1000 Mbps | 100 m |
| GLC-SX-MMD | Multimode fiber | 1000 Mbps | 550 m |
| GLC-LH-SMD | Single-mode fiber | 1000 Mbps | 10 km |
| GLC-BX-U | Single-mode fiber | 1000 Mbps | 10 km |
| GLC-BX-D | Single-mode fiber | 1000 Mbps | 10 km |
| GLC-TE | UTP cat 5e | 1000 Mbps | 100 m |
| SFP-H10GB-CU1M | Copper coax | 10 Gig | 1 m |
| SFP-H10GB-CU3M | Copper coax | 10 Gig | 3 m |
| SFP-H10GB-CU5M | Copper coax | 10 Gig | 5 m |
| SFP-10G-SR | Multimode fiber | 10 Gig | 26 m – 400 m |
| SFP-10G-LR | Single-mode fiber | 10 Gig | 10 km |
| SFP-10G-SR-S | Multimode fiber | 10 Gig | 26 m – 400 m |
| SFP-10G-LR-S | Single-mode fiber | 10 Gig | 10 km |
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