The Advantech EKI-1526 is an industrial-grade 16-port RS-232/422/485 serial device server featuring a 1U rack-mount design and dual Ethernet redundancy. Il connecte de manière transparente les appareils série traditionnels au réseau Ethernet pour la gestion à distance et l'acquisition de données.. Ses principaux avantages incluent des types de ports série configurables par logiciel, large plage de températures de fonctionnement, protection ESD élevée, et prise en charge riche du protocole de communication. Il est largement appliqué dans l'automatisation industrielle, transport intelligent, energy management and other fields.
- Définition du segment du modèle (Standard Nomenclature)
| Segment | Standard Code | Signification | Description détaillée |
| EKI | EKI | Advantech Industrial Ethernet Communication Product Line | Embedded Ethernet Interface, focusing on industrial network communication equipment |
| 1526 | 1526 | Product Series Number | 16-port serial device server (1528 is the 8-port version) |
| Suffix Code | N / je / TI / VCC, etc.. | Extension des fonctions / Power Type | • N: Gigabit Ethernet |
| • I: Version grande température (-40°C~70°C) | |||
| • TI: Wide-temperature + DC power supply | |||
| • VDC: DC power supply (12-48VCC) | |||
| • CE: Compliant with EU CE certification | |||
| Version | V2 | Hardware Revision | 2nd-generation hardware with upgraded performance, supporting baud rate up to 976.5 kbps |
- Core Specification Parameters (Official Data)
| Catégorie | Paramètre | Modèle standard (EKI-1526) | Wide-Temp Model (EKI-1526I) | Remarques |
| Basic Characteristics | Type de produit | 16-Port Serial Device Server | Identique à gauche | 1U rackmount, SECC metal casing, IP30 protection |
| Dimensions (L×H×P) | 438×43.6×259.2 mm | Identique à gauche | Standard 19-inch rack mounting | |
| Poids | 3.1 kilos | Identique à gauche | Excluding packaging | |
| Température de fonctionnement | -10°C ~ 60°C | -40°C ~ 70°C | Température de stockage: -40°C ~ 80°C | |
| Humidité | 5%~95 % d'humidité relative, sans condensation | Identique à gauche | Adaptable to humid industrial environments | |
| MTBF | >60,000 heures | Identique à gauche | Conception haute fiabilité | |
| Interface réseau | Port Quantity | 2 × RJ45 | Identique à gauche | LAN redundancy supported, auto MDI/MDIX |
| Vitesse | 10/100 Mbit/s (EKI-1526) | Identique à gauche | Dual independent MAC addresses, network redundancy | |
| 10/100/1000 Mbit/s (EKI-1526N) | ||||
| Isolation Protection | Intégré 1.5 kV magnetic isolation | Identique à gauche | Anti-electromagnetic interference, improved stability | |
| Serial Communication | Port Quantity | 16 ports | Identique à gauche | Software configurable serial mode |
| Type d'interface | DB9 (RJ45 optional) | Identique à gauche | Supports RS-232/422/485 switching | |
| Baud Rate | 50~921.6 kbps (Standard) | Identique à gauche | Custom baud rate supported | |
| 50~976.5 kbps (V2 Version) | ||||
| Data Bits | 5, 6, 7, 8 | Identique à gauche | Flexible compatibility with various serial devices | |
| Parity | Aucun / Odd / Even / Mark / Space | Identique à gauche | Full compatibility with industrial protocols | |
| Stop Bits | 1, 1.5, 2 | Identique à gauche | Meets communication requirements of different devices | |
| Protection | 15KV ESD full-serial protection | Identique à gauche | Industrial-grade anti-static design | |
| RS-485 Feature | Automatic data flow control, 2/4-wire support | Identique à gauche | No manual TX/RX direction switching required | |
| Système d'alimentation | AC Input | 100~240 VAC, 50~60 Hz | Identique à gauche | Consommation d'énergie: 5.6W, 0.3A@110V, 0.2A@220V |
| DC Input | 12~48 VDC | Identique à gauche | Wide voltage input for industrial power supply | |
| Protection | Surtension / Over-current / Reverse polarity protection | Identique à gauche | Industrial-grade power protection design | |
| Software Functions | Operation Modes | Virtual COM, TCP Server/Client, UDP, Modbus Gateway | Identique à gauche | Multi-protocol conversion capability |
| Configuration Methods | Web Browser, Telnet, Windows Utility, Serial Console | Identique à gauche | Flexible for different management scenarios | |
| Network Protocols | IPv4/IPv6, DHCP, DNS, SNMP MIB-II | Identique à gauche | Complete network management support | |
| Security Features | Password protection, IP filtering, SSL/TLS (V2 version) | Identique à gauche | Ensure secure data transmission | |
| Certifications | Conformité | CE, FCC, UL, Class I Div 2 | Identique à gauche | Compliant with global industrial safety standards |
- Liste des accessoires (Officiellement recommandé)
| Nom de l'accessoire | Fonction | Recommended Qty | Remarques |
| Rack Mount Kit | Standard 19-inch rack mounting brackets | 1 set per unit | Standard included |
| Power Cord | AC version: IEC C13 power cable | 1 pc per unit | Select according to power type |
| DC version: Phoenix terminal power cable | |||
| Serial Cable | DB9-RJ45 adapter cable / DB9 straight-through cable | 1 pc per port | For serial device connection |
| Ethernet Cable | Cat5e/Cat6 network cable (1-2m) | 2 pcs per unit | For dual Ethernet port connection |
| Configuration Software | Advantech Device Manager | 1 set | Available via CD or official website |
| Manuel d'utilisation | Paper / electronic operation guide | 1 copy | Includes quick configuration steps |
| Warranty Card | 5-year warranty certificate | 1 copy | Standard warranty for Advantech industrial products |
- Concurrent & Liste de remplacement multi-marques (Directly Compatible)
| Marque | Modèle | Paramètres clés | Compatibilité / Différence | Recommandation de remplacement |
| Advantech Same Series | EKI-1526N | 16-port, Gigabit Ethernet, IP30 | Higher network speed, identical other specs | Choose for high-speed network transmission |
| Advantech Same Series | EKI-1526I | 16-port, température large (-40°C~70°C) | Extended operating temperature range | De plein air / harsh environment applications |
| Advantech Same Series | EKI-1528 | 8-port, same other parameters | Half port count, taille plus petite | Scenarios with fewer serial devices |
| MOXA | NPort 5616-8-DT | 16-port, RS-232/422/485, dual LAN | Similar protocol support, more mature configuration software | Users familiar with MOXA ecosystem |
| Siemens | SCALANCE XB-200 Series | Industrial switch + serial server module | High integration, seamless connection with Siemens PLC | Priority for Siemens automation systems |
| Contact Phénix | FL SWITCH 2208 + PSI-MODEM | Changer + serial gateway combination | Conception modulaire, strong scalability | Scenarios requiring flexible port expansion |
| Alternative nationale | ZLG GCOM80-2NET | 16-port, température large, full isolation | 30%-50% Prix inférieur, fully compatible functions | Projets sensibles aux coûts & localization demands |
- Lignes directrices de sélection & Solutions alternatives
Selection Mnemonic
> 16 serial ports with dual LAN, software switch for multi-RS mode;
> I for wide temp, N for gigabit, AC/DC power as required.
Considérations clés en matière de sélection (5 Dimensions)
- Port Quantity Matching
16 serial devices: Choose standard EKI-1526
8 serial devices: Choose EKI-1528 (8-port version)
Plus que 16 serial ports: Daisy-chain multiple units or select EKI-1548 (32-port)
- Operating Environment Adaptation
Environnement industriel standard (-10°C~60°C): EKI-1526 standard version
Extreme environment (-40°C~70°C): Choose EKI-1526I wide-temperature model
De plein air / environnement humide: Add IP67 protective enclosure
- Network Requirement Evaluation
100Mbps network: EKI-1526 standard
Gigabit / high-speed data transmission: Choose EKI-1526N
Network redundancy & haute fiabilité: Dual LAN auto-switching as standard
- Power Supply Selection
Room / computer room: EKI-1526 (AC power)
Industrial field / no commercial AC: EKI-1526T-VDC (12-48VCC)
Unstable power grid: Add UPS power protection
- Function Expansion Requirements
Security encryption: Choose V2 version (supports SSL/TLS)
Modbus Gateway: Standard built-in, no extra license required
Remote management: Supports SNMP, integrable with industrial network management system
Solutions alternatives recommandées (3 Scenarios)
| Scénario d'application | Solution recommandée | Avantages |
| Optimisation des coûts | Domestic alternatives (ZLG GCOM80-2NET, Kyland KIEN Series) | 30%-50% réduction des coûts, function compatible, meets localization requirements |
| Protocol Upgrade | EKI-1526 + Advantech Protocol Converter | Add OPC UA, PROFINET and other industrial protocol conversion |
| Intégration des fonctions | EKI-1526V2 + Advantech Edge Computing Module | All-in-one serial data collection + informatique de pointe + cloud platform access |
- Air Freight Compliance & Certification CE (International Trade)
- Air Freight Compliance
No built-in lithium battery / super capacitor: Classified as ordinary industrial electronic equipment, no special air freight restrictions
Transport Category: Classe 9 miscellaneous dangerous goods (non-dangerous in actual transport)
HS Code: 85176239 (Industrial network communication equipment)
Packaging Standard: Compliant with ISTA 3A to avoid transport damage
- CE Certification Information
Compliant Directives: 2014/30/EU (CEM), 2011/65/EU (RoHS), 2014/35/EU (LVD)
Test Standards: DANS 55011 (Industrial EMI), DANS 61000-6-2 ( Industrial immunity)
Certification Number: Available on Advantech official website by entering the full model number
- Application Cases & Industry Adaptation
Cas d'application typiques
- Smart Factory: Connect 16 PLCs/sensors; adopt dual Ethernet redundancy for production line data acquisition; support Modbus TCP/RTU protocol conversion and seamless MES system connection.
- Smart Grid: Network 16 serial substation devices (protection relays, compteurs d'énergie); wide-temperature model adapts to outdoor conditions; dual LAN ensures reliable data transmission.
- Transport ferroviaire: 16-channel sensor data collection for train carriages; DC power adapts to vehicle system; high ESD protection against complex electromagnetic environments.
- Industrie pétrochimique: Remote monitoring of 16 instrument data in refineries; Class I Div 2 certification meets hazardous area requirements; support remote configuration and fault diagnosis.
Industry Adaptation Guide
| Industrie | Adaptation Advantages | Configuration recommandée |
| Automatisation industrielle | Multi-serial centralized management, flexible protocol conversion | EKI-1526N + Virtual COM Software + Industrial Switch |
| Énergie & Pouvoir | Wide-temperature design, haute fiabilité, dual LAN redundancy | EKI-1526I + DC Power + Module de protection contre la foudre |
| Transport ferroviaire | Vehicle power compatible, résistant aux vibrations, enhanced EMC | EKI-1526TI-VDC + Shockproof Mounting Bracket |
| Pétrochimique | Explosion-proof certification, remote management, faible consommation d'énergie | EKI-1526I + Safety Isolator + Alimentation redondante |
The Advantech EKI-1526 is a highly reliable and flexible industrial-grade serial device server. With its 16-port high-density design, software-configurable serial modes, and dual LAN redundancy, it perfectly meets the network transformation demands of serial devices in industrial sites. Supporting multiple operation modes including Virtual COM, TCP/UDP and Modbus Gateway, it can be seamlessly integrated into mainstream industrial automation systems to realize remote management and data acquisition of traditional serial equipment. Its wide-temperature versions and multiple power options further extend its applicability in extreme environments and special scenarios.
Full EKI-1526 Series Model List
- 16-Port Main Models
| Modèle complet | LAN Speed | Operating Temp | Alimentation | Fonctionnalités principales |
| EKI-1526 | 10/100Mbit/s | -10℃~60℃ | C.A. 220 V | Standard 16-port RS232/422/485 |
| EKI-1526I | 10/100Mbit/s | -40℃~70℃ | C.A. 220 V | Industrial wide-temperature version |
| EKI-1526N | 10/100/1000Mbit/s | -10℃~60℃ | C.A. 220 V | Standard + Dual Gigabit LAN |
| EKI-1526NI | 10/100/1000Mbit/s | -40℃~70℃ | C.A. 220 V | Wide-temperature + Dual Gigabit |
| EKI-1526-VDC | 10/100Mbit/s | -10℃~60℃ | 12~48VDC | DC power version |
| EKI-1526I-VDC | 10/100Mbit/s | -40℃~70℃ | 12~48VDC | Wide-temperature + DC power |
| EKI-1526N-VDC | 10/1000Mbit/s | -10℃~60℃ | 12~48VDC | Gigabit + DC power |
| EKI-1526V2 | 10/100Mbit/s | Standard Temp | CA | V2 hardware, higher baud rate + SSL encryption |
- Modèles de séries associés (8/32-Port Alternative)
| Modèle | Serial Ports | Positionnement | Direct Replacement Scenario |
| EKI-1528 | 8 Ports | Small-site application | ≤8 serial devices, space & cost saving |
| EKI-1548 | 32 Ports | High-density cabinet | Sur 16 serial ports, one unit replaces two EKI-1526 |
Unified Model Suffix Definition
No Suffix: Standard temperature -10~60℃, 100Mbps LAN, AC220V power
je: Industrial wide-temperature -40℃~70℃
N: Network upgraded to Dual Gigabit Ethernet
VCC: Supports 12~48VDC wide-range DC input
TI: Wide-temperature + industrial vehicle-grade DC adaptation
V2: 2nd-gen hardware, max baud rate 976.5kbps, SSL/TLS encryption supported
Quick Hardware Wiring Steps
- Power on the device: AC for mains power / DC for 12-48V DC input
- Network port: LAN1/LAN2 connect to switch or PC, dual LAN redundancy supported
- Port série: DB9 connects to RS232/485/422 devices; mode switch via web page
- Power indicator: PWR steady on = normal; LINK flashing = network communication active
Basic Web Configuration Steps
- Set PC IP to the same segment: 192.168.1.x
- Enter default IP in browser: 192.168.1.1
- Default username / password: `admin / admin`
- Paramètres de base:
Modify device IP, subnet mask, gateway
Global serial config: unified baud rate / bits de données / parité / stop bits
Serial mode: select Virtual COM / TCP Server / TCP Client / Modbus Gateway as required
3 Common Application Configuration Guides
- Virtual COM Mode (Le plus courant)
Application: Legacy serial software / SCADA software used as local COM port
- Set serial mode to Virtual COM in web page
- Install Advantech Device Manager on PC
- Search device → bind serial ports → auto assign COM3~COM20
- Use the corresponding COM number directly in SCADA or application software
- Modbus Gateway Mode (For PLC & Meters)
Application: Convert Modbus RTU to Modbus TCP for serial instruments over Ethernet
- Set serial mode to Modbus Gateway in web page
- Configure serial parameters: 9600/8N1 to match instrument
- Set slave address and polling interval
- Host access via Modbus TCP using device IP + port number
- Dual LAN Redundancy Configuration (Dual Link Anti-Disconnection)
Application: Critical production lines, power grid, unattended computer rooms
- Enter Network → Redundancy in web interface
- Enable Dual LAN Redundancy
- Connect LAN1 and LAN2 to different switches respectively
- Automatic seamless switchover and no data loss if any network cable fails
Quick Troubleshooting
- Cannot access web page: Set PC IP to 192.168.1.xxx, disable firewall
- Serial communication failure: Switch RS232/485/422 mode in web page, verify baud rate and parity
- Virtual COM offline: Upgrade driver, set static device IP, avoid DHCP dynamic IP
- Dual LAN no switchover: Confirm redundancy is enabled; ensure two switches are not in the same loop
Advantech EKI-1526 Dual LAN Redundancy Full Configuration Guide
The EKI-1526 supports Master-Backup dual LAN redundancy with switchover time <1 deuxième. After enabling via Web UI, it automatically detects link faults and performs seamless failover to ensure uninterrupted industrial communication.
- Dual LAN Redundancy Working Principle
The EKI-1526 is equipped with two independent Ethernet ports (LAN1/LAN2) and independent MAC addresses:
Master Port: Carries all network traffic under normal operation
Backup Port: Monitors master port status in real time and takes over only when master port fails
Switchover Mechanism: Automatically switches to backup port upon LAN link down (cable disconnection / switch failure), switchover time <1 second with no data loss
Restore Mechanism: After master port recovers, configurable for auto switch back or remain on backup port
- Hardware Connection Preparation
Recommended Topologies (Avoid Single Point of Failure)
| Connection Mode | Description | Scénario d'application |
| Dual Switch Redundancy | LAN1 to Switch A, LAN2 to Switch B; both switches connect to core network | Critical production lines, unattended rooms; prevent single switch failure |
| Single Switch Dual Port | LAN1/LAN2 connect to different ports of the same switch | Budget limited; only protect against single port / cable failure |
| Dual Network Segmentation | LAN1 for production network, LAN2 for management network; service & management isolated | Security scenarios requiring network isolation |
Hardware Wiring Steps
- Power off the device, connect serial devices and power supply
- Connect LAN1/LAN2 to switches (dual switches recommended)
- Power on; check indicators: PWR steady on, both LAN LINK lights flashing normally
- Detailed Web Configuration Steps
- Basic Network Settings (Mandatory)
- Set PC static IP: 192.168.1.x (same segment as device default)
- Browser access default IP: 192.168.1.1, login: `admin/admin`
- Go to Ethernet Configuration → Ethernet 1: Set master port IP, subnet mask, gateway
- Go to Ethernet Configuration → Ethernet 2: Set backup port IP (same segment recommended, par exemple. 192.168.1.2), subnet mask, gateway
- Click Save, device auto restarts (à propos 1 minute)
- Enable Dual LAN Redundancy (Core Config)
- Log in Web UI again after reboot
- Enter Network → Redundancy
- Check Enable Dual LAN Redundancy
- Select Redundancy Mode:
Master-Backup (Défaut): LAN1 as master, LAN2 as backup, auto failover upon fault
Load Balance: Both ports work simultaneously for traffic sharing (supported by partial firmware)
- Set Switch Back Mode:
Auto: Automatically switch back to master after recovery (Défaut)
Manuel: Stay on backup port; manual switch required after master recovery
- Set Detection Interval: Défaut 1 deuxième, adjustable 500ms~10s (1s recommended)
- Click Save, redundancy takes effect immediately
- Configuration avancée (Facultatif)
| Paramètre | Valeur recommandée | Description |
| Heartbeat Packet | Enable | Enable heartbeat detection for higher fault accuracy |
| Heartbeat Interval | 100MS | Heartbeat sending interval; shorter = faster detection |
| Failover Count | 3 | Switch only after 3 consecutive failures to avoid false switching |
| Link Down Detection | Enable | Physical layer link detection (cable disconnection etc.) |
- Redundancy Function Test
- Link Fault Test
- Normal status: Web Status → Network Status shows LAN1 Active, LAN2 Standby
- Unplug LAN1 cable:
Device indicator: LAN1 off, LAN2 steady on
Web status updates: LAN2 becomes Active, switchover <1s
Verify serial communication via Virtual COM / Modbus-TCP, no interruption
- Reconnect LAN1 cable:
Auto Mode: LAN1 resumes Active, LAN2 becomes Standby
Mode manuel: Remain on LAN2; manual switch required in Web UI
- Switch Failure Test
- Power off the switch connected to master port
- Device switches to backup port within 1 deuxième
- Restore master switch power and verify switchback works normally
- Dépannage courant
| Phénomène de défaut | Cause possible | Solution |
| Cannot enable redundancy | Firmware version too old | Upgrade to latest firmware from official website |
| Communication interrupted after switchover | Wrong backup port IP | Ensure master & backup ports same segment with consistent gateway |
| Frequent false switching | Detection interval too short | Extend interval to 2s, set Failover Count to 5 |
| No auto switch back after master recovery | Switch Back Mode set to Manual | Change to Auto or switch manually in Web |
| Both LAN ports down | Network configuration conflict | Check duplicate IP and subnet mask settings |
- Configuration Mnemonic
> Three steps for dual LAN redundancy: set IP first, enable redundancy second;
> Dual switches avoid single point; always verify failover after config.
- Hardware Selection: Critical sites choose dual switches; ordinary sites choose single switch dual port
- IP Planning: Master and backup ports recommended same network segment for easy management & switchover
- Mode Selection: Industrial control prioritizes Master-Backup; data collection can use Load Balance
- Switchback Policy: Unattended sites select Auto; manual intervention sites select Manual
- Test Validation: Perform link failover test after configuration to ensure reliable redundancy in actual faults
EKI-1526 dual LAN redundancy can be quickly configured via Web interface. The core is enabling redundancy and correctly setting master/backup IP and switchover policy. Cooperating with dual-switch topology, it effectively eliminates single-point faults in industrial networks and ensures high reliability of serial device communication. Full functional verification is recommended after deployment.
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