Name: TP-Link TL-WR842N Wireless N Router - INOSAKI
SKU: TL-WR842N
Price: 22.89 USD
Availability: InStock

Technical Overview

300Mbps wireless router with 5 IPSec VPN tunnels, USB 2.0 sharing, dual 5dBi antennas, and 4 Fast Ethernet ports for secure remote industrial endpoints.

Key Features

300Mbps Wireless Speed: High transmission rate ensures lag-free telemetry, communication, and web traffic [1.2.3].
IPSec VPN Tunnels: Supports up to 5 concurrent site-to-site VPN tunnels using the IKE protocol with AES, DES, and 3DES encryption.
Multi-Function USB 2.0 Port: Enables network-wide printer, FTP server, media server, and localized storage sharing.
Isolated Guest Network: Securely partitions external user access to protect corporate and internal system data.
MIMO & CCA Technologies: Enhances signal reception reliability and automatically avoids wireless channel conflicts.
IP-Based Quality of Service (QoS): Empowers network administrators to allocate specific bandwidth thresholds to connected nodes.
WPS & Security Button: Instant wireless encryption pairing with a dedicated physical button.

Technical Specification Matrix

Parameter	Value
Wireless Standards	IEEE 802.11n, IEEE 802.11g, IEEE 802.11b [1.2.3]
Frequency	2.4 GHz to 2.4835 GHz
Signal Rate	Up to 300 Mbps (802.11n)
Ethernet Ports	4x 10/100Mbps LAN Ports, 1x 10/100Mbps WAN Port
USB Port	1x USB 2.0 Port
Antenna Configuration	2x 5dBi Fixed Omni-Directional Antennas
VPN Tunnels Capacity	5 IPSec VPN Tunnels
VPN Encryption Algorithms	DES, 3DES, AES
VPN Authentication	MD5, SHA1
Power Input	12VDC / 1.0A External Power Supply
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Operating Humidity	10% to 90% non-condensing
Storage Humidity	5% to 90% non-condensing
Compliance Certifications	CE, FCC, RoHS
Physical Weight (kg)	0.5
Dimensions L x W x H (cm)	13.4 x 19.2 x 3.3

Industrial Applications

1. Secure Site-to-Site PLC and SCADA Integration

Utilizes the 5 hardware-accelerated IPSec VPN tunnels with AES encryption to bridge remote PLC controllers or local SCADA systems at decentralized sub-stations back to a centralized industrial control room over a standard broadband line.

Problem Solved

Eliminates the exorbitant cost of dedicated lease-line telemetries while maintaining strict, encrypted data integrity and security for critical automation controls.

IPSec VPNAES EncryptionPLC SubstationWAN RoutingSite-to-Site Tunneling

2. Local Telemetry Backup via Shared Network Storage

Leverages the multi-functional USB 2.0 port mapped as a localized FTP or Samba server to allow local network-enabled data loggers or sensors to stream and archive backup datasets onto a connected industrial USB drive.

Problem Solved

Provides an inexpensive, localized redundant database in the event of primary fiber network disconnects, safeguarding environmental or performance metrics.

USB 2.0 StorageFTP ServerSamba SharingTelemetry BackupRedundancy

3. Isolated Wi-Fi Test-Bench for Factory Commissioning

Employs the isolated Guest Network and IP-based Quality of Service (QoS) controls to create a secure, bandwidth-throttled wireless sandbox specifically for newly built or untrusted machines undergoing factory testing.

Problem Solved

Prevents unauthorized network communication from unfinished machine firmware to the enterprise backplane, eliminating the risk of virus spread or network floods during commissioning.

Guest Network IsolationIP-Based QoSMIMO TechnologyNetwork SandboxCommissioning