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PD1-S31-9281 (20 Port 10/100/1000 L3 Manage Switch, 4 Combo Ports, 2 Expansion 10G Modules)

SKU: PD1-S31-9281


Danh mục: Switch,
Nhãn hàng: Switch




Excellent Performance:

  • 256 Gbps switch fabric, at least extend to 4 GSFP/TX Combo ports.
  • Hardware routing, wire-speed L2 switching, packet forwarding rate: 131Mpps.
  • Giga optical fiber supports up to 80 km long distance transfer, direct connection to MAN backbone networks.

Security and reliability:

  • Quota system for connected hosts per port.
  • IEEE 802.1x port-based user authentication.
  • Ethernet port trunking provides more bandwidth and system redundancy.
  • Powerful ACL supports L2-L4 data filtering.

Easy maintenance:

  • Supports device stacking through cluster. technology. Central management with unified IP address saves IP addresses.
  • Management via CONSOLE port, Web, SNMP, etc.
  • BootRom and other software upgrade through TFTP/FTP.
  • Support DHCP and relay, provide dynamic IP address assignment.
  • Support SFP standard interface, protect your investment.
  • Redundant power supply.

Powerful traffic and broadcast control:

  • Automatically detect and restrain broadcast storm, support IGMP datagram snooping, effectively restrict broadcast flooding.
  • Full- and half- duplex traffic control.
  • Ethernet port bit rate quota.
  • Advanced buffer management supports 802.1p, with 4 dispatching queues per port mapping the 8 priority queues in 802.1p.
  • IP multicast and QoS support.
  • Jumbo frame.

Multiple routing polices:

  • Static routing.
  • Support RIP v1/v2, OSPF v2, and many other dynamic routing protocols.
  • Support PIM-SM, PIM-DM and many other multicast routing protocols.

Technical Specifications



  • IEEE 802.1D (STP), IEEE 802.1w (RSTP), IEEE 802.1s MSTP 
  • IEEE 802.1x port-based user authentication
  • Port Security
  • Hardware support for IP ACL, MAC ACL, VLAN ACL
  • Hardware support for port-based user authentica-tion by combinations and bandings of port, IP add-ress, and MAC address
  • Web user authentication
  • Remote authentication through RADIUS
  • User privilege classification and password protection
  • DHCP snooping, DHCP option82, IP Source Guard


  • Port: 24 10/100/1000M TX, 4 GSFP/TX Combo, 4 10GE/GE autoadaptation SFP+ ports, 1 Console Port


  • Switch Fabric: 256G bps
  • Switching Mode: Store-and-forward
  • MAC Address Table Size: 16 K
  • Queue Buffer: 64 MB
  • Jumbo frame: 9612
  • VLAN: Port-based VLAN, 802.1Q tag VLAN, Super VLAN, Private VLAN, GVRP dynamic VLAN configuration, VLAN Stacking (QinQ)
  • Traffic Control: Back pressure at half-duplex, 802.3x at full-duplex, CAR support, 100M port: 1M step size; 1000M port: 8M step size
  • Storm Control: Stop sending at threshold to restrict broadcast/multicast/unicast storms
  • Multicast Control: IGMP snooping
  • Multicast Protocol: IGMP v1/v2/v3, PIM-SM, PIM-DM
  • Port Trunking: Up to 32 groups with up to 8 ports per group, dynamic LACP or static aggregation
  • Port Mirroring: Supported. Can be based on flow classification
  • Clustering: Up to 32, manageable through single IP
  • Unicast: Static, RIP v1/v2, OSPF v2, BGP v4
  • Policy-based Routing: IP-based routing policies
  • Redundant Routing: VRRP
  • Proxy: Proxy ARP
  • DHCP: DHCP Server/Client/Relay
  • NAT: Static or dynamic NAT
  • QoS: 
    • Head Of Line(HOL) blocking prevention mechanism
    • 4 dispatching queues per port, mapping the 8 priority queues in 802.1p
    • WRR, SP, and FIFO queuing algorithms
    • Best Effort Service
    • Differentiated Service 
    • Strict Priority 
    • Weighted Round Robin 
    • First Come First Serve
    • TOS re-tagging, RTS
  • Network Management:
    • SNMP v1/v2, RMON(Group 1, 2, 3, 9), Telnet 
    • Command Line Interface(CLI), Web interface
    • Support PRODIGY network management tools suite: Prodigy Director, NTP, SSH, LLDP

Power Requirements:

  • Power Consumption: 40 W (max.)
  • Power input: AC 100 ~ 240 V

Physical Characteristics:

  • Dimensions (LxWxH) (mm): 442x316x44mm

Environmental Limits:

  • Operating Temperature: 0 ~ 50°C
  • Non-operating Temperature: -20 ~ 70°C
  • Humidity: 5 ~ 95% (no condensing)

Optional Accessories:

  • For Optional Fiber Module, please refer to Spectrum Terrabit Transceiver.


Ordering Information
PD1-S21-7281-PoE Ethernet PoE switch with 24 gigabit TX ports and 4 10G gigabit optical ports (1 console port, 24 gigabit PoE TX ports, 4 gigabit optical ports (SFP), an AC220V power source, 370W PoE power consumption, fan-based heat cooling, 1U, 19-inch rack-mounted installation) Download