4-port 10/100BASE-T PoE + 2-port 100BASE-T Uplink Industrial 250m PoE Switch
Industrial 250m PoE Switch Overview
The LNK-GYT420P Series is a 250-metre long-range industrial Power over Ethernet switch
featuring four 10/100Base-TX Power over Ethernet ports (30 watts per port) and two 100-Mbit/s uplink ports.
This switch delivers power and data over a single RJ-45 cable to IP cameras, wireless access points,
and other power-over-Ethernet devices. This product has been designed for use in surveillance
and industrial networks. It provides fast packet forwarding, high bandwidth, and stable transmission for crisp,
uninterrupted video streams.
The product incorporates built-in surge protection and static defence circuits, thereby ensuring reliable operation
in harsh environments. The advanced features of this product include one-key VLAN mode, QoS prioritisation,
broadcast storm control and network security protection, making it perfect for Ethernet video surveillance
and industrial IoT deployments.
Industrial 250m PoE Switch Features
- Transmission distance up to 250 m, ideal for flexible deployment in wireless AP and surveillance projects
- Provides 10 Mbps bandwidth at 250 m when connecting IP cameras
- 4 × 10/100Base-TX PoE ports + 2 × 100M uplink Ethernet ports
- 10/100 Mbps RJ45 ports support full/half-duplex, auto-negotiation, and Auto MDI/MDIX
- Compatible with IEEE 802.3at (30W) and IEEE 802.3af (15.4W) PoE standards
- IEEE 802.3x flow control for reliable data transmission
- 6KV surge protection on all ports for enhanced lightning resistance
- Redundant power input design for improved reliability
- Supports both wall-mount and DIN-rail installation
- Wide operating temperature range: -40°C to 80°C (-40°F to 176°F), suitable for harsh industrial environments
Industrial 250m PoE Switch Technical Indexes
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Product Name
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Unmanaged 6 ports Industrial 250m PoE Switch
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Product Model
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LNK-GYT420P
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Interface
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4 x 10/100M copper RJ-45 ports, 2 x 100M RJ45 uplink port
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Network Protocols
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IEEE802.3 10Base-T
IEEE802.3u 100Base-TX
IEEE802.3x flow control and back pressure
IEEE802.1d Spanning Tree Protocol
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Other parameters
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PoE Specification
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PoE Standard: Supports both IEEE802.3af and IEEE802.3at
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Single PoE Port Power Output:
Max. 15.4 watts (IEEE 802.3af)
Max. 30 watts (IEEE 802.3at)
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PoE port Auto detect AF/AT devices
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PoE Port Output Voltage: DC48V
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Power Pin Assignment:1/2+;3/6-
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Network Media
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10BASE-T: Cat3,4,5 UTP(≤100 meter)
100BASE-TX: Cat5 or later UTP(≤100 meter)
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Performance Specification
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Bandwidth: 1.2Gbps
Packet Buffer Memory:1M
Packet Forwarding Rate:1488000pps/port
Address Table: 2K
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Forwarding Mode
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Store-And-Forward
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 LED Display
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PWR
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Power supply indicator(Red)
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Lighting:Powered
No Lighting:No Power
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SW
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DIP indicator(Green)
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1
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2
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Indicate
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Mode
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off
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off
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No light
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Standard
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on
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off
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Lighting
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VLAN
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off
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on
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Slow flash
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Extend
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1-6
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RJ-45 ACT indicator(Green)
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Lighting:Connecting
Flashing:Data Transmitt
Un-light:Disconnect
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Power Supply
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Input Voltage: DC48V (48～55V)
Type of input: 4 pins terminal block(redundancy V1+V1-,V2+V2-)
No-load consumption: MAX 5W@ DC52V0.1A
Full-load consumption: MAX 65W@ DC52V1.25A (802.3af)
Full-load consumption: MAX 104W@ DC52V2A (802.3af+)
Full-load consumption: MAX 130W@ DC52V2.5A (802.3at)
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Working Environment
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Working temperature: -40～80℃
Storage temperature: -40～85℃
Relative Humidity: 5%~95 %( no condensation)
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Industry Standard
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EMI: FCC Part 15, CISPR (EN55022) class A
EMS: EN61000-4-2 (ESD)
EN61000-4-4 (EFT)
EN61000-4-5 (Surge)
Shock: IEC 60068-2-27
Free fall: IEC 60068-2-32
Vibration: IEC 60068-2-6
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Mechanical Structure
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Shell: IP30 protect grade, metal shell
Installation: DIN-Rail or Wall mounts
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Certification
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CE mark, commercial
FCC Part 15 Class B
VCCI Class B
EN 55022 (CISPR 22), Class B
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MTBF
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300,000 hours
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Warranty
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5 years
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Dimension
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119*87*28 mm without package
175*130*55 mm with package
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Industrial 250m PoE Switch Ordering Information
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Model
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Description
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LNK-GYT420P
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4-Port 10/100Base-T PoE(up to 250m) + 2-Port 100Base-T Ethernet Switch
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Mounting Options
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► Default DIN-Rail Bracket installed
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Power Options
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►120W/2.5A 48VDC DIN-Rail Power Supply. Open Wire for Terminal Block.
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► Power Supply is to be purchased separately.
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Industrial 250m PoE Switch Application
After-Sales and Warranty Policy
It is composed of online customer service and telephone customer service, providing product consultation,
remote technical support, maintenance and acceptance services.
Service Policy: Three-month replacement and three-year warranty.
Replacement: Within three months of purchasing a series of products, after testing the product failure
by technicians and man-made damage caused by non-natural disasters, the purchaser can directly
go to the purchasing point to replace the same type of products.Or a product of comparable performance.
If there is no trouble in product testing, the original sample will be returned.
Warranty: Man-made damage caused by non-natural disasters, our company's free warranty period is 1 year.
[The following circumstances do not fall within the scope of replacement and free maintenance]
1.Damage caused by operation and maintenance not in accordance with the instructions in the product manual.
2.Damage caused by human factors, such as inappropriate voltage input, water intake and breakage.
3.Damage to products caused by natural disasters, such as lightning, earthquakes, fires, etc.
3.Unauthorized alteration of the inherent settings or repair without the company's permission.
4.Products beyond the scope of free maintenance.
5.Damage caused by transportation, loading and unloading during repairs sent by customers.
6.The product bar code or model on the product warranty card does not conform to the product itself.
7.Failure or damage caused by other non-product problems such as design, technology, manufacturing and quality.
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