Layer-2 Aggregation Switch 16 Port SFP, 8 Port SFP/RJ45 combo, 4 port 10G SFP+ PD1-S21-9281-F


Layer-2 Aggregation Switch 16 Port SFP, 8 Port SFP/RJ45 combo, 4 port 10G SFP+ PD1-S21-9281-F

Model: PD1-S21-9281-F
Price: Contact for price



Product Characteristics

Innovative Virtual Cluster Switching Technique:
  • Innovative BVSS (Terrabit Networks Virtual Switch System): PD1-S21-9281-F virtualizes multiple physical devices into one. The performance, reliability and management of the virtual system are superior to the physical ones. Improved Performance: BVSS makes full use of each link in the physical devices, which avoids STP blocking the link and protects the original link to the maximum extent. High Reliability: Based on the advanced distribution mechanism and efficient cross-physical link aggregation link function, the logic control plane, service control plane and service data plane are separated. Thus, PD1-S21-9281-F can support continuous layer-3 routing forwarding, avoiding service interruption as a result of a single point of failure.Easy Management: BVSS realizes single IP management, greatly improving the networking efficiency and lowering the operating cost.
Industrial Ethernet Ring with Zero Delay and Zero Packet Loss:
  • Supports industry-level EAPS and their protection shift time is less than 50ms. Their high reliability is represented by the null packet loss, which has been proved by many years of application in the Grid, rail transportation and defense systems.
Telecom-Level Ethernet Switch:
  • Supports the telecom-level Ethernet-ring protection protocol with a protection shift time of less than 50ms, STP/RSTP/MSTP, backup of active and standby uplinks and LACP link aggregation to cater to the requirements of high reliability of carriers.
  • Support Ethernet standard 802.3u, 802.3x, 802.3ad, 802.1d, 802.1p, 802.1q, 802.1w, 802.1ad.
  • Support system status LED, port dynamic LED.
  • Provides the perfect Ethernet OAM mechanism to monitor the network running status in real time for rapid trouble locating and detection.
  • Supports powerful ACL functions to access and control L2-L7 data based on physical port, VLAN, MAC, IP and protocol port ID, and providing carriers flexible and various policy control methods.
  • Supports In-Service Software Upgrade (ISSU) to ensure the unremitting data forwarding during system upgrade.
  • Supports various L2 multicast functions, including IGMP-Snooping, fast-leave and trans-vlan multicast copy.
Versatile IPv6 Solutions:
  • Supports the IPv6 protocol suite, IPv6 neighbor discovery, ICMPv6, path MTU discovery, etc.
  • Supports Ping, Traceroute, Telnet, SSH, ACL and so like on the basis of IPv6, meeting IPv6 networks equipment management requirements and service control requirements.
Perfect Protection Mechanisms:
  • Equipment-level Protection: The advanced hardware infrastructure design realizes the level based packe schedule and packet protection prevents DoS-/TCP-related: SYN flood, UDP flood,broadcast stormor large traffic attacks,and supports level-based command line protection, endowing different levels of users with different management permissions. Supports perfect protection authentication mechanisms: IEEE8021xRadius andBDTacacst. Supports storm/multicast/unicast limit to ensure the normal running of equipment in harsh network conditions.
  • Supports a perfect ring detection mechanism to ensure the long-term stable running of network. Suppots port isolation within the same VLANDHCP-Snooping and IP plus MAC plus Port binding for ensuring user data Protection.

Technical Specifications


  • Port: 24 ports Gigabit SFP (8 port RJ45 combo), 4 10GE SFP+, 1 Console RJ45 Port


  • Switch Fabric: 256G bps
  • Switching Mode: Store-and-forward
  • MAC Address 16 K
  • Queue Buffer: 64 MB
  • Jumbo frame: 9K
  • Interface Vlan: 64
  • Routing Table: 512

Power Requirements:

  • Power Consumption: 45 W (max.)
  • Power input: AC 100 ~ 240 V; DC 36 ~ 72V
Physical Characteristics:
  • Dimensions (LxWxH) (mm): 440x280x44mm
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

Model Description
PD1-S21-9281-F 16-Port Gigabit SFP + 8-Port RJ45/SFP Combo + 4-Port 10G SFP+ L3-lite Stackable Managed Switch (single AC-220V power supply, with cooling fan, 1U, standard 19-inch rackmounted installation)