User's Manual
12
 Hardware
  12/19-inch desktop size, 1U height, rack mountable
  2-inch color LCD with smart management functions
  LED indicators for system power, per port PoE ready and PoE activity, speed, 
Link/Act
  1/3 silent fans to provide stable and ecient power performance
  Supports Energy-Ecient Ethernet (EEE) function (IEEE 802.3az)
  Supports  contact  discharge  of  ±6KV  DC  and  air  discharge  of  ±8KV  DC  for 
Ethernet ESD protection
  Supports ±6KV surge immunity
1.4 Specications
Model GSD-1222VHP GSW-1820VHP GSW-2620VHP
Hardware Specications
802.3af/at PoE 
Injector Port
8 16 24
10/100/1000BASE-T 
MDI/MDIX Ports
8 16 24
10/100/1000BASE-T 
MDI/MDIX Ports
2 --
1000BASE-X SFP/
mini-GBIC Slots
2
Switch Architecture Store-and-Forward
Switch Fabric
24Gbps/
non-blocking
36Gbps/
non-blocking
52Gbps/
non-blocking
Switch 
Throughput@64 
bytes
18Mpps@64 bytes 26.8Mpps@64 
bytes
38.7Mpps@64 
bytes
MAC Address Table 8K entries
Maximum Frame 
Size
9216 bytes
Flow Control
IEEE 802.3x pause frame for full duplex; back pressure for 
half duplex










