LINKOH 24-Port Gigabit Ethernet Managed PoE+ Switch with 4 SFP ( 2 Shared Combo)

LINKOH 24-Port Gigabit Ethernet Managed PoE+ Switch, 24 x PoE+ Ports with 4 x 1Gb SFP Uplinks( 2 Shared Combo)

Layer 2+ Full managed switch PoE supplies 24**10/100/1000M RJ45 ports and 4*1/10G uplink combo SFP slot ports, with 24port PoE with IEEE802.3 af/at standards, single port POE power up to 30W.

  • Support various PoE management function, including PoE shedule, PoE PD-alive etc
  • Support SFP DDM & cable diagnosis
  • Support G.8032 ERPS, self-covery time < 20 ms
  • Support 1588 V2.0, transparent clock
  • Support port aggregation
  • 4KV surge protection, 6KV contact/8KV air ESD protection


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SKU: LK7026GSM Category:

LK 7026GSM is a layer 2+ full managed switch PoE, which supplies 24**10/100/1000M RJ45 ports and 4*1G uplink  SFP slot ports ( 2 shared combo), with 24 port PoE with IEEE802.3 af/at standards, single port POE power output up to 30W.

Rich PoE Management Function
Being the managed PoE switches for CCTV surveillance, wireless and VoIP networks, LK 7026GSM features the following special PoE management functions:
■ PoE PD-alive check
■ Scheduled power rebooting
■ PoE schedule
■ PoE usage monitoring
■ Soft-reboot PoE Non-stop
■ PoE port power feeding priority

Smart PoE PD-Alive Check
LK 7026GSM managed PoE switch can be configured to monitor connected PD status in real time. Once the PD stops working and responding, LK 7026GSM will resume the PoE port power and bring the PD back to work. They will greatly enhance the network reliability through the PoE port resetting the PD’s power source and reducing administrator management burden.

Scheduled Power Rebooting
LK 7026GSM allow each of the connected PoE IP cameras or PoE wireless access points to reboot at a specified time each week. Therefore, they will reduce the chance of IP camera or AP crash resulting from buffer overflow.

PoE Schedule for Energy Saving
For energy saving and environmental protection purpose, LK 7026GSM can effectively control the power supply besides their capability of giving high watts power. The PoE schedule function helps to enable or disable PoE power feeding for each PoE port during specified time intervals and it is a powerful function to help SMBs or enterprises save power and money.

PoE Usage Monitoring
Via web interface, LK 7026GSM enable the administrator to monitor the status of the power usage of each connected PD in real time. Thus, they greatly enhance the management efficiency of the facilities.

Solution for IPv6 Networking
With the IPv6/IPv4 dual stack and other management functions, LK 7026GSM is the best choice for IP CCTV surveillance, VoIP and wireless solution providers to develop the IPv6 network. Meanwhile they help the SMBs to upgrade their network infrastructures to the IPv6 era without any extra investment.

Robust Layer 2 Features
LK 7026GSM can be programmed for advanced switch management functions, such as port aggregation, Q-in-Q VLAN, Spanning Tree Protocol, QoS, bandwidth control, ERPS IGMP/MLD snooping etc. The LK7000 series allows the operation of a high-speed trunk combining multiple ports.

Powerful Security Functions
LK 7026GSM provides a comprehensive access control list (ACL) for enforcing security to the edge. It can be used to restrict to network access by denying packets based on source and destination IP address, TCP/UDP port number or defined typical network applications. Its protection mechanism also comprises 802.1x Port-based and MAC-based user and device authentication. With the private VLAN function, communication between edge ports can be prevented to ensure user privacy.

Enhanced Security and Traffic Control
LK 7026GSM supports DHCP Snooping, IP Source Guard and Dynamic ARP Inspection functions to prevent IP snooping from attack and discard ARP packets with invalid MAC address. The network administrator can now construct highly-secure corporate networks with considerably less time and effort than before.

User-friendly Secure Management
For efficient management, LK 7026GSM is equipped with console, web and SNMP management interfaces. With management interface, LK 7026GSM offers an easy-to-use, platform independent management and configuration facility. LK 7026GSM supports SNMP and it can be managed via any management software based on the standard SNMP v1 or v2 Protocol. MeanwhileLK 7026GSM offers Cisco-like command via Telnet or console port and customer doesn’t need to learn new command from these switches. Moreover, LK 7026GSM offers the remotely secure management by supporting SSH, SSL and SNMP v3 connection where the packet content can be encrypted at each session.

Intelligent SFP DDM Function
LK 7026GSM support SFP-DDM (Digital Diagnostic Monitor) function that greatly helps network administrator to easily monitor real-time parameters of the SFP and SFP+ transceivers, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.


Model LK7026GSM
Copper Ports 22-10/100/1000BASE-T RJ45 auto-MDI/MDI-X ports
Combo Interfaces 2x 100/1000BASE-X SFP interface shared with port-23 and port-24;

Supports 100/1000Mbps dual mode and DDM

Fiber Ports 2-100/1000BASE-X SFP interfaces, supports 100/1000Mbps dual mode
PoE Ports 1~24-802.3af/802.3at PoE Injector Ports
Console Ports 1 x RS-232-to-RJ45 serial port (115200, 8, N, 1)
Switch Architecture Store-and-Forward
Switch Fabric 52Gbps/non-blocking
Throughput 38.69Mpps @64 bytes
Address Table 8K entries
Share Data Buffer 4  Mb
Jumbo Frame 9600 Bytes
Flash Memory 128Mb
Flow Control IEEE 802.3x pause frame for full-duplex

Back pressure for half-duplex

Reset Button >2 sec.: Factory default and reset
Power Supply 100~240V AC, 50/60Hz, 4A (max.)
Power Consumption Max. 400 watts/1122 BTU
PoE Standards IEEE 802.3af Power over Ethernet/PSE

IEEE 802.3at Power over Ethernet Plus/PSE

PoE Power Supply Type Per Port 52V DC, 300mA. Max. 15.4 watts (IEEE 802.3af)

Per Port 52V DC, 600mA. Max. 30 watts (IEEE 802.3at)

LED Indicators Power: Green

Solid on- power work normal, off- power disconnected

System: Green

Blink -work normally, solid on- soft work abnormal, fast Blink – soft        upgrade

PoE: Yellow

Solid on- PoE work normally, Off- PoE doesn’t work, Blink – PoE overload


10/100/1000T RJ45 Interfaces (Port 1 to Port24): 1000 LNK/ACT (Green)

Blink – port connected with data transmission; Solid on- port connected without data transmission

100/1000Mbps SFP Interfaces (Port 22 to Port 24): Green

Blink – port connected with data transmission; Solid on- port connected without data transmission

EMC Surge Immunity: 4KV Per: IEC61000-4-5

ESD Protection:ESD Level 4 Per: IEC61000-4-2

EFT Level 4 Per: IEC61000-4-4

Dimension 440x290x44.5mm
Weight 4.5kg
Working Temperature -10 ℃to 45℃
Storage Temperature  -20℃ to 70 ℃
MTBF 50,000hrs


Layer 2 functions

Port configuration Auto-negotiation

Flow Control

Port Mirror:   TX/RX/BOTH;   Many-to-1 monitor

CPU Mirror

Traffic statistics

Link Aggregation Static link aggregation

LACP(Dynamic Trunk/Static Trunk)

Algorith based on Source/Destination MAC

Algorithm based on Source/Destination IP

MAC Table Aging Time

Static MAC address

Dynamic MAC address management

VLAN 4094 Active VLANs

4094 VID

802.1Q Tag VLAN


Protocol VLAN


Voice VLAN

802.1ad Q-in-Q tunneling

Private VLAN (Protected port)



L2, L3 e L4

Time-based ACL




User-Defined ACL


Spanning tree 802.1D Spanning Tree Protocol (STP)

802.1w Rapid Spanning Tree Protocol (RSTP)

802.1s Multiple Spanning Tree Protocol (MSTP)

Loop Guard

Root Guard


BPDU Guard

BPDU Filter

Ring Protection <20ms G.8032 ERPS Ring

Fast Ring

Multicast 256 groups

IGMP v1/v2/v3 Snooping, Fast Leave

MLD Snooping

Multicast VLAN

IGMP filter


Multicast Routing

QOS 8 mapping IDs to 8 level priority queues

CoS port-based

CoS 802.1p-based

CoS DSCP-based

Scheduling algorithms SP, WRR, SP+WRR

Storm Control (Broadcast, Multicast, Unknown Unicast)

Bandwidth control per port

SWRR, DWRR for Scheduling

Flow Redirect



Rate Limiting(Ingress/Egress)

Stri Priority

Security Features Port Security

MAC address filter

ARP Association (Manual, ARP scanning, DHCP snooping)

ARP Protection



DoS (Denial of Service)

Classification of packages based on: End.MAC, IP End, TCP / UDP Ports,

Protocol Type;

802.1x Authentication (port-based e MAC-based)

TACACS/TACACS+ Authentication

RADIUS Authentication

DHCP Filter

Guest VLAN



Restriction of WEB access based on: IP Address, And. MAC and Port;

Port Isolation

Loopback detection

Management SNMP v1/v2c/v3 with Full Private MIBs

RMON 4 groups


CLI (Telnet, Console, SSHv1/v2)

Firmware upgrade via console/web/TFTP

Configuration Backup/Reload

Dual Firmware


Configuration Export/Import

CDP Aware

OAM (IEEE802.3ah)

CFM (IEEE802.1ag)


Telnet client



Support IEEE1588v2 transparent clock
Other Features DNS Client

DHCP Relay

DHCP Client

DHCP Snooping

DHCP Option 66

DHCP Option 67

DHCP Option 82




PoE management Total PoE power budget control

Per port PoE function enable/disable

PoE admin-mode control

PoE port power feeding priority

Per PoE port power limitation

PD classification detection

PD alive check

PoE schedule

Soft-reboot PoE Non-stop

Maintenance Cable Diagnostics


SFP DDM (Digital Diagnostics Monitoring)

Thermal protection

System log (Local and Remote)

Memory and CPU Monitoring

Tracert/ tracert 6


 Layer 3 functions


Static Routing IPv4 Unicast: Static Routing(Software Base)

IPv6 Unicast: Static Routing(Software Base)

IPV6 IPv6 neighbor discovery (ND)

Path maximum transmission unit (MTU) discovery

Internet Control Message Protocol (ICMP) version 6





Interface IPV6


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