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Industrial Layer 2+ Full Management Gigabit PoE Switch with Advanced Surveillance Functions

SW-2421FM-250 is a 24-port Gigabit PoE+ Switch with ultra-high backplane capacity up to 52Gbps for large data transmission with built-in SFP cages, professional PoE port management with max. 30W output per port, max. PoE budget 250W and intelligent central switch management on DIGIEVER NVR.

SW-2421FM-250 is a 24-port Gigabit PoE+ Rack-mount Layer 2+ Full Management PoE Switch with 2 built-in SFP cages and 2 additional Gigabit uplink ports. The switch supports IEEE 802.3af/at PoE standard, with maximum 250 W PoE power budget, and support power device detection for easy deployment. The switch also provides industrial full management functions, such as Spanning Tree, QoS, IPv4 / IPv6 Multicast, SNMP, storm control, etc.  With reliable and easy-to-use surveillance ability, users can remotely restart network devices; create large numbers of VLANs for network efficiency, etc.  The switch is deeply integrated into DIGIEVER NVR, with intelligent central switch management.  In an intuitive web-based user interface, users can search and names switches quickly, and configure switch's IP, restart switch, toggle on/off PoE ports, and monitor PoE power consumption.

Switch diagram


Industrial Full Management PoE Switch


  • Spanning Tree (STP / RTSP / MSTP)
  • QoS (CoS / Rate Limitation / Priority Queue)
  • IPv4 / IPv6 Multicast
  • SNMP (v1/v2c/v3)
  • Up to 4K of VLAN group numbers
  • Storm Control (Broadcast / Multicast / Unicast)
  • Link Aggregation (IEEE802.3ad)
  • RADIUS/TACACS+ authorization


With industrial hardware design, DIGIEVER FM series PoE switch features full layer 2 network management functions to configure the switch, to monitor LAN traffic and to prioritize LAN traffic to ensure the most important surveillance data gets through.

Ideal for IT Network Management

  • QoS

Via advanced QoS feature, users are allowed to prioritize their network traffic by assigning a higher priority to critical traffic and ensure consistent network performance and can support delay-sensitive data, such as real-time surveillance video streaming.

  • VLAN

With up to 4K VLAN groups, FM series allow user to logically group devices together to isolate traffic between these groups even when the traffic is sent to the same physical switch.  The isolation of network traffic helps reduce unnecessary traffic to allow better network performance.

  • SNMP / Port Mirroring / Sampled Flow

SNMP (Simple Network Management Protocol) is designed to help network monitoring easier, and save IT staff tremendous time and resource.  In addition, Port mirroring helps to copy the switch network traffic and forward it to other port for trouble-shooting without taking network out of service.  Finally, with the use of Sampled Flow (sFlow) technology, a lot of network application in surveillance application, such as liveview and playback, can be monitored with a network analyzer to continuously monitor thousands of switch ports simultaneously.

Error-Proofing Network Installation

  • Spanning Tree

FM series also supports various Spanning Tree standards to provide redundant paths while preventing loops that are created by multiple active paths between switches.


  • Storm Control


All DIGIEVER FM / WS series features storm control, which can be used to limit or to set thresholds for different type of network traffic, such as Broadcast, Multicast, and Unicast. And this offers user the capabilities to detect and limit the disruptive effects of a broadcast storm caused by a bridging loop.

High Availability and Additional Security

  • Link aggregation

All DIGIEVER FM / WS series provides Link Aggregation technology, which can be used to increase bandwidth by combining multiple ports into one logical link.  Besides, it also brings automatic failover and failback, that is, the traffic from a failed link is automatically switched over to other working links, therefore, achieving high availability for your DIGIEVER devices.


For higher need of security, FM series also support both RADIUS and TACACS+ authentication.  With RADIUS / TACACS+ server, each individual user session is encrypted, preventing other user from acquiring private information. And the network permissions, such as firewall policy and QoS settings, can be assigned to a single user profile, based on user identity.


Professional PoE Management


  • High scalability with diverse selection of PoE ports: 8, 16, 24
  • Up to 430W high PoE power budget
  • IEEE 802.3 af/at standard compatible
  • Adjustable voltage PoE (Max. 30W per port)
  • Power device detection for easy deployment
  • Enable/Disable separately


Both FM/WS series offer complete product line for 8, 16, and 24 ports PoE Switch with various PoE budgets.  Up to 430W high PoE power budget ensures high power capacity and high availability for mission critical PoE applications.  Both FM/WS series are IEEE 802.3 af/at standard compatible, and provide up to 30 Watt per port to power PTZ cameras.  With a comprehensive product line of 8, 16, 24-port, SFP/Gigabit uplink ports, as well as power device auto detection, both FM/WS series offers the flexibility for diverse surveillance deployments.


Reliable and Easy-to-Use Surveillance Ability


  • Ultra-high backplane capacity for large data transmission
  • Built-in SFP cages with optional SFP transceivers
  • Remotely restart network devices from PoE port management
  • Up to 30W per port to power PTZ camera
  • Dual firmware image to ensure stable operation


All DIGIEVER switches in both FM / WS series feature superior hardware and software design to fulfill the need for large-scale surveillance project.  In terms of large data transmission, both FM / WS series support ultra-high backplane capacity (up to 52 Gbps ) as well as built-in SFP cages with optional SFP transceivers for fiber transmission. 

To enhance surveillance management efficiency, user now can easily restart network devices remotely from PoE port management.  IEEE 802.3 af/at Standard is also supported in both FM / WS series, up to 30W per port to power PTZ camera.  Finally, the dual firmware image design ensures stable operation for any surveillance environment.


Intelligent Central Switch Management on DIGIVER NVR


  • Compatible to DIGIEVER NVR with simple installation
  • Intuitive web-based configuration
  • Friendly configuration to monitor PoE power consumption
  • On/off control for each PoE port
  • Complete port overview to display camera’s IP address


Both FM / WS series are deeply integrated into DIGIEVER NVR.  Users can easily configure lots of surveillance-related functions in one unified configuration UI on DIGIEVER NVR.  Not only the simple installation for network setup, Both FM / WS series offer advanced troubleshooting and traffic monitoring functions to help users to clarify and troubleshoot any kind of connection or device issue.  It’s the best PoE solution for all your DIGIEIVER devices.


  • 10/100/1000M RJ45 POE Ports
  • 24
  • 10/100/1000M RJ45 Uplink Port (exclusive)
  • 2
  • 100/1000Base-X SFP
  • 2
  • 10/100/1000M RJ45 Uplink Port (inclusive)
  • 0
  • Command Line Port
  • 1
  • Performance
  • Buffer Memory
  • 4Mbits
  • MAC Address Table Size
  • 8K records
  • Backplane Capacity
  • 52Gbps
  • Forwarding Rate
  • 38.688Mpps
  • Jumbo Frame Size
  • 9.6KB
  • PoE
  • IEEE 802.3 af/at Standard Compatible
  • Yes
  • Number of PoE Out Ports
  • 24
  • Max. Power Budget (PoE ports)
  • 250W
  • Max. PoE Output Power per Port (Adjustable)
  • 30W
  • External/Internal Power
  • Internal Power
  • Power Device(PD) Auto Detection
  • Yes
  • Power Device(PD) Alive Check
  • Yes
  • Enable/Disable PoE Per Port
  • Yes
  • Overloading Protection
  • Yes
  • Priority Setting Per Port
  • Yes
  • Power Level Setting Per Port
  • Yes
  • Lay 2 Features
  • Auto-negotiation
  • Yes
  • Auto MDI/MDIX
  • Yes
  • Flow Control
  • Yes
  • Spanning Tree
  • Link Aggregation (Trunking)
  • Yes
  • Max. LACP Link Aggregation Group
  • 13
  • Max. Port per Link Aggregation Group
  • 8
  • IGMP Snooping (IPv4 Multi-cast)
  • Yes
  • IPv6 MLD Snooping (IPv6 Multi-cast)
  • Yes
  • VLAN
  • VLAN Group (Port-based)
  • 4095
  • VLAN Group (Tag-based)
  • 4095
  • Protocol-based VLAN
  • Yes
  • Voice VLAN
  • Yes
  • Multicast VLAN
    Registration (MVR)
  • Yes
  • QoS Features
  • Number of priority queue
  • 9
  • CoS
  • Yes
  • Rate Limiting
  • Yes
  • Priority Queue Scheduling
  • Yes
  • Security
  • RADIUS Authentication
  • Yes
  • Yes
  • SSL
  • Yes
  • SSH
  • Yes
  • Port security
  • Yes
  • IP Source Guard
  • Yes
  • Storm Control
  • Yes
  • Yes
  • Loop Detection
  • Yes
  • Management
  • Command Line Interface
  • Yes
  • Web Based Management
  • Yes
  • Firmware Upgrade via HTTP
  • Yes
  • Dual Firmware Images
  • Yes
  • Configuration Download/Upload
  • Yes
  • Ping
  • Yes
  • LLDP (Link Layer Discovery Protocol )
  • Yes
  • NTP
  • Yes
  • Port Mirroring
  • Yes
  • SNMP(v1/v2c/v3)
  • Yes
  • RMON(Remote Network Monitoring)
  • Yes
  • DHCP
  • DHCP Server, DHCP Client, DHCP
  • UPnP
  • Yes
  • S-Flow (Sampled Flow)
  • Yes
  • General
  • Power Input
  • 100~240 VAC
  • Dimension (H*W*D)
  • 44 x 440 x 331 mm
  • LED
  • Power, PoE, Link/Act, SFP
  • Operating Temperature
  • 0~45°C
  • Storage Temperature
  • -20~80°C
  • Operating Humidity
  • 5~90% (non-condensing)
  • Net Weight
  • 4.5 kg
  • Mounting
  • Rack Mount
  • Certification
  • Packaging (1CTN/?BOX)
  • 3 Box
  • Package Dimension (H*W*D)
  • 54 x 32 x 44 cm
  • Carton Gross Weight
  • 18.7 kg
  • Box Gross Weight
  • 6.23 kg
  • Standard
  • IEEE 802.3 - 10BaseT
  • Yes
  • IEEE 802.3u - 100BaseTX
  • Yes
  • IEEE 802.3ab - 1000BaseT
  • Yes
  • IEEE 802.3z 1000 Base-SX/LX
  • Yes
  • IEEE 802.3af Power over Ethernet (PoE)
  • Yes
  • IEEE 802.3at Power over Ethernet (PoE+)
  • Yes
  • IEEE 802.3az - Energy Efficient Ethernet (EEE)
  • Yes
  • IEEE 802.3x - Flow Control
  • Yes
  • IEEE 802.1Q - VLAN
  • Yes
  • IEEE802.1v - Protocol VLAN
  • Yes
  • IEEE 802.1p - Class of Service
  • Yes
  • IEEE 802.1D - Spanning Tree
  • Yes
  • IEEE 802.1w - Rapid Spanning Tree
  • Yes
  • IEEE 802.1s - Multiple Spanning Tree
  • Yes
  • IEEE 802.3ad - Link Aggregation Control Protocol (LACP)
  • Yes
  • IEEE 802.1AB - LLDP (Link Layer Discovery Protocol)
  • Yes
  • IEEE 802.1X - Access Control
  • Yes
  • IEEE 802.3az - EEE (Energy-Efficient Ethernet)
  • No
    • SW-2421FM-250
    • Power Cord
      Power Cord
    • CD-ROM
    • Command Line Cable
      Command Line Cable
    • Screws x 8
      Screws x 8
    • Rack Mount Kit
      Rack Mount Kit
    • All designs and specifications are subject to change without prior notice.
    • SFP Transceiver ST-LCS10
      SFP Transceiver ST-LCS10
    • SFP Transceiver ST-LCM
      SFP Transceiver ST-LCM
    • All designs and specifications are subject to change without prior notice.

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  • Description
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  • Download
  • Notes
  • Comparison
  • DIGIEVER PoE Switch Comparison Table
  • 459.25 KB
  • 2017/05/10

  • Type
  • Description
  • File Size
  • Download
  • Notes
  • Datasheet
  • DIGIEVER IP Video Surveillance Solution
  • 205.26 MB
  • 2022/09/30
  • Datasheet
  • DIGIEVER全方位網路影像監控系統 全系列產品型錄
  • 36.37 MB
  • 2017/12/28
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