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Planet FGSD-1821P 16+2 Port PoE 802.3at 185W Network Switch

Planet FGSD-1821P 16+2 Port PoE 802.3at 185W Network Switch

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Planet logo Planet
  • 10/100 BASE-TX
  • 2 x Gigabit RJ45
  • 3 year guarantee

The Planet FGSD-1821P is a high-quality desktop switch that features 16 x 10/100BASE-TX Fast Ethernet ports, 2 extra Gigabit TP ports & 1 x 1000BASE (Read more)

Was: £141.12
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Product Code16345
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The Planet FGSD-1821P is a high-quality desktop switch that features 16 x 10/100BASE-TX Fast Ethernet ports, 2 extra Gigabit TP ports and 1 x 1000BASE-X SFP combo interface ideally suitable for centralized power management. With a total of 185 watts of PoE budget, it features high-performance Gigabit uplink and IEEE 802.3at PoE+ (up to 32W) capabilities.

The FGSD-1821P provides two extra Gigabit TP ports and one 1000BASE-X SFP combo interface that enable the network administrators to increase their network bandwidth to relieve traffic congestion when the two 10/100/1000BASE-T or one 1000BASE-X uplink port are used to connect devices, such as NVR, video streaming server, NAS and more. With the combo design, the administrators can easily connect network devices no matter how large the network expansion is.


  • 16 10/100BASE-TX RJ45 ports with IEEE 802.3at PoE+ injector function (ports 1~16)
  • 2 10/100/1000BASE-T Gigabit RJ45 ports interfaces (ports 17~18)
  • 1 1000BASE-X SFP interface (port 17)
  • Complies with IEEE 802.3at Power over Ethernet Plus end-span PSE
  • Up to 16 ports of IEEE 802.3af/802.3at devices powered (ports 1~16)
  • Supports PoE power up to 32 watts for each PoE port, with a total PoE budget of 185W
  • Each port supports 55 DC power to PoE powered device
  • Auto detects powered device (PD)
  • Supports PD alive function
  • Circuit protection prevents power interference between ports
  • Remote power feeding up to 100m in standard mode with 250m in extend mode
  • Hardware-based 10/100Mbps and 10/100/1000Mbps auto-negotiation and auto MDI/MDI-X
  • Supports IEEE802.3x flow control in full-duplex mode and backpressure in half-duplex mode
  • Integrates address look-up engine, supporting 16K absolute MAC addresses
  • 16K jumbo frame supports 1000Mbps speed
  • Hardware-based DIP switch for Standard, VLAN or Extend mode selection
    • VLAN mode: Ports 1 to 16 cannot communicate with each other, but can communicate with the uplink ports 17 to 18 and SFP port 17
    • Extend mode: Ports 1 to 8 have data rate of 10Mbps. The farthest transmission distance is up to 250 meters and all ports can communicate with each other
  • VLAN mode is to isolate ports to prevent broadcast storm and defend DHCP spoofing
  • Automatic address learning and address aging
  • Supports Energy-Efficient Ethernet (EEE) function (IEEE 802.3az)
  • 11-inch desktop size, 1U height
  • LED indicators for system power, per port PoE ready and PoE activity, speed, link/act
  • 1 silent fan to provide stable and efficient power performance
  • Supports contact discharge of ±6KV DC and air distance discharge of ±8KV DC for Ethernet ESD protection
  • Supports ±6KV surge immunity


Hardware Specifications
Power over Ethernet
Standards Conformance
Fast Ethernet Copper Ports 16 x 10/100BASE-TX RJ45 auto-MDI/MDI-X ports
Gigabit Ethernet Copper Ports 2 x 10/100/1000BASE-T RJ45 auto-MDI/MDI-X ports
(Port-17 shared with SFP port)
SFP Ports 1 x 1000BASE-SX/LX/BX SFP interface (shared with Port-17)
DIP Switch Selectable operation mode
- Standard
- Extend
Dimensions (W x D x H) 280 x 180 x 44 mm (1U height)
Enclosure Metal
Weight 1800g
Power Requirements 100~240V AC, 50/60Hz, 5A max.
Power Consumption/Dissipation Max. 207 watts/706 BTU
Thermal Fan 1
ESD Protection Contact discharge of ±6KV DC,
Air discharge of ±8KV DC
Surge Protection Differential Mode ±4KV, Common Mode ±6KV
Installation Desktop or rack-mount installation
LED Indicators System
Power (Green)
PoE Max. (Green)
10/100/1000T RJ45 Interfaces
10/100/1000 LNK / ACT (Green)
PoE-in-Use (Amber)
1000X SFP Interfaces
1000 LNK / ACT (Green)
Switch Architecture Store-and-Forward
Switch Fabric 7.2Gbps/non-blocking
Switch Throughput@64bytes 5.36Mpps
MAC Address Table 16K entries
Jumbo Frame 16K bytes
Flow Control IEEE 802.3x pause frame for full duplex; back pressure for half duplex
PoE Standard IEEE 802.3at Power over Ethernet Plus/PSE
PoE Injector Ports 16
PoE Power Supply Type End-span: 1/2 (+), 3/6 (-)
PoE Power Output Per port 55V DC, 600mA. max. 32 watts
PoE Power Budget 185 watts
Number of PDs, 7 watts 16
Number of PDs, 15.4 watts 12
Number of PDs, 30 watts 6
Regulatory Compliance FCC Part 15 Class A, CE
Standards Compliance IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
IEEE 802.3ab Gigabit 1000BASE-T
IEEE 802.3z Gigabit SX/LX
IEEE 802.3x flow control and back pressure
IEEE 802.3af Power over Ethernet
IEEE 802.3at Power over Ethernet Plus
IEEE 802.3az Energy-Efficient Ethernet
Operating Temperature: 0 ~ 50 degrees C
Relative Humidity: 5~ 95% (non-condensing)
Storage Temperature: -10 ~ 70 degrees C
Relative Humidity: 5 ~ 95% (non-condensing)
-- No videos available --
  Planet FGSD-1821P datasheet
  Planet FGSD-1821P user manual
Planet website
Planet support site

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