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24-Port Layer 2 Managed Gigabit PoE+ Switch with 4 Gigabit Combo Ports, 400W (GS2028PS4-400W)

● 24 Gigabit POE Ports, 4 Gigabit Combo Ports, 1 Console Port
● Compatible with IEEE802.3at and IEEE802.3af
● Ethernet port supports 10/100/1000M adaptive and POE functions
● Fanless design, Natural Cooling, 1U Rack Mount
● Support WEB, TELNET, CLI, SSH, SNMP, RMON management
● Support POE Power Management
● Lightning Protection Surge



Model   GS2028PS4
Interface 24 * 10/100/1000M POE Ports 4 * Gigabit SFP/TP Combo Ports 1 * Console Port
Network Protocols IEEE 802.3

IEEE 802.3u

IEEE 802.3ab/ad/az/af/at

IEEE 802.3x

IEEE 802.1q

IEEE 802.1p, QoS

IGMP Snooping

PoE Parameters PoE Standard: IEEE802.3at (30W) and IEEE802.3af (15.4w)
PoE compatibility: IEEE 802.3af/at adaptive
POE port output: DC48-55V
Power Pin Assignment: Power over spare pairs 1/2( ) and 3/6 (-)
Port Lightning Protection General Mode 6KV,

Differential Mode 4KV,


Network Transmission Medium 10BASE-T: Cat3, 4, 5 UTP (≤ 100 m)

100BASE-TX: UTP (≤100 m) above Cat5

1000BASE-TX: UTP (≤100 m) above Cat5

Optical Multimode fiber: 1310nm, 2Km

Single-mode fiber: 1310nm, 20/40 Km

1550nm, 60/80/100/120Km

The LED indicator SYS, PWR, Link (lines 2, 4) / Act (lines 1, 3)
Power Supply Machine input voltage: AC110-240V

Output: DC52V 5.76A

Total power: 300W

Physical Dimension Product size (L×W×H): 445mm × 285mm × 45mm

Package size (L×WxH): 470mm × 350mm × 120mm

Working Environment Operating Temperature: -20° ~ 55 °C

Storage Temperature: -40 ° ~ 85 °C

Operating Humidity: 10% ~ 95%, non-condensing

Working height: up to 10,000 feet (3,000 meters)

Storage height: up to 10,000 feet (3,000 meters)

Technical Indicators
Bandwidth 56Gbps (non-blocking)
Packet Forwarding rate 41.66Mpps
Packet Buffer Memory 4M
Memory Capacity 128MB
Flash Capacity 16MB
Jumbo frame 9.6Kbytes
VLANs 4096
Forwarding Mode Store-And-Forward
Layer 2 Software Function
Port Management Enable/Disable Port
Speed, Duplex, MTU Setting
Port Information Check
Port Mirroring Supports both side-way ports mirroring
Port Speed Limit Supports port-based input/output bandwidth management
Port Isolation Support the downlink port isolation and can communicate with the uplink port
Storm Suppression Supports unknown unicast, multicast, unknown multicast

broadcast type storm suppression

Storm suppression based on bandwidth regulation and storm filtering

Link Aggregation Support static manual aggregation

Support LACP dynamic aggregation

VLAN Access
Support port, protocol, MAC-based VLAN partitioning
Support GVRP dynamic VLAN registration
Voice VLAN
MAC Support static addition, deletion
MAC addresses learning limit
Support dynamic aging time setting
Spanning tree Support STP spanning tree protocol

Supports RSTP Rapid Spanning Tree Protocol

Supports MSTP Rapid Spanning Tree Protocol

Multicast Support static addition, deletion


Support MLD-Snooping
Support v1/2/3 dynamic multicast monitor
Extended Function
ACL Based on source MAC, destination MAC, protocol type, source IP, destination IP, L4 port
QoS Based on 802.1p (COS) classification
Based on the DSCP classification
Classification based on source IP, destination IP and port number
Support SP, WRR scheduling strategy
Support flow rate limit CAR
LLDP Support LLDP link discovery protocol
User settings Add/delete users
Log User login, operation, status, events
Anti-attack DOS defense
Support CPU protection and limits the rate of sending CPU packets
ARP binding (IP, MAC, PORT binding)
Certification Support 802.1x port authentication
Support AAA certification
Network diagnosis Support ping, telnet, trace
System Management Device reset, configuration save/restore, upgrade management, time setting, etc.
Management function
CLI Support serial port command line management
SSH Support SSHv1/2 remote management
TELNET Support telnet remote management
WEB Support Layer 2 settings, Layer 2 and Layer 3 monitor
Support trap: ColdStart, WarmStart, LinkDown, LinkUp
RMON Support RMON v1
POE Support PoE power supply
Other functions Support DHCP Snooping, Option82
Support dynamic ARP detection
Support TACACS certification
Support DNS certification
Support port security settings
Support MVR protocol
Support cable detection VCT function
Support UDLD protocol
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