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Sollae Systems ezTCP CSE-H55N2 Industrial RS-422/RS-485 to Ethernet Converter

Sollae Systems ezTCP CSE-H55N2 Industrial RS-422/RS-485 to Ethernet Converter

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Professional-Grade Multi-Drop Serial Networking with IPv4/IPv6 Dual Stack Support: Transform your RS-422/RS-485 serial networks into IP-enabled infrastructure with industrial-grade reliability and advanced IPv4 and IPv6 support.

The Sollae Systems CSE-H55N2 is an industrial-grade RS-422/RS-485 to Ethernet converter designed for demanding multi-drop serial networks. With support for both IPv4 and IPv6, extreme temperature range (-40°C to +85°C), and advanced features like SSL/TLS security and multiple simultaneous connections, the CSE-H55N2 delivers enterprise-level performance for mission-critical industrial automation, SCADA, and building management systems.


Why Choose the CSE-H55N2?

🔄 RS-422/RS-485 Versatility

Support for both RS-422 (full-duplex, point-to-point or multi-drop) and RS-485 (half-duplex, multi-drop up to 32 devices). One converter handles all your long-distance serial networking needs up to 4,000 feet.

🌐 Future-Proof IPv6 Support

Full IPv4/IPv6 dual stack implementation with stateless and stateful (DHCPv6) address auto-configuration. Ready for modern networks and future IPv6 deployments with ICMPv6, TCPv6, and UDPv6 support.

🏭 Industrial-Grade Reliability

Extreme temperature range (-40°C to +85°C) and enhanced noise immunity make this converter perfect for harsh industrial environments. Upgraded from CSE-H55N with improved stability against electrical damage and noise on RS-422/485 lines.

🔒 Enterprise Security

Built-in SSL/TLS encryption, IP/MAC filtering, and password protection ensure your serial data remains secure across the network. Perfect for sensitive industrial control applications.

🔄 Multiple Connection Support

Monitor and control from multiple locations simultaneously. Multiple clients can connect to a single CSE-H55N2 for distributed monitoring and control applications (firmware v2.3A or later).

 High-Speed Performance

RS-422/RS-485 support up to 230.4 kbps ensures fast, reliable data transfer for even the most demanding serial applications. Long-distance capability up to 4,000 feet (1,200m).

🛡️ Enhanced Protection

Embedded 3.9kΩ biasing resistors and TVS (Transient Voltage Suppression) protection on all serial lines. Over-current, reverse voltage, and surge protection on power input.

🎯 Flexible Configuration

Configure via Ethernet (ezManager), serial port, AT commands, or Telnet. Choose the method that works best for your deployment scenario. Mobile apps available for iOS and Android.


CSE-H55N2 Technical Specifications

Serial Interface

Physical Interface:

  • Type: RS-422 or RS-485 (software selectable)
  • Connector: 6-pin Terminal Block (3.5mm pitch)
  • Protection: Embedded 3.9kΩ biasing resistors and TVS on all lines
  • Maximum Distance: 4,000 feet (1,200m)

RS-422 Configuration:

  • Signals: TX+, TX-, RX+, RX-, GND (2x)
  • Mode: Full-duplex
  • Topology: Point-to-point or multi-drop (1:N)
  • Pin Assignment:
    • Pin 1: TX+ (Transmit Data +)
    • Pin 2: TX- (Transmit Data -)
    • Pin 3: GND (Ground)
    • Pin 4: RX+ (Receive Data +)
    • Pin 5: RX- (Receive Data -)
    • Pin 6: GND (Ground)

RS-485 Configuration:

  • Signals: TRX+, TRX-, GND (2x)
  • Mode: Half-duplex
  • Topology: Multi-drop (up to 32 devices)
  • Pin Assignment:
    • Pin 1: TRX+ (Transmit/Receive Data +)
    • Pin 2: TRX- (Transmit/Receive Data -)
    • Pin 3: GND (Ground)
    • Pin 6: GND (Ground)

Serial Parameters:

  • Maximum Baud Rate: 230.4 kbps
  • Supported Baud Rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400 bps
  • Data Bits: 8 bits, 7 bits (with parity)
  • Parity: None, Even, Odd, Mark, Space
  • Stop Bits: 1, 1.5, 2
  • Flow Control: None, RTS/CTS

Note: When Data Bits is set to 7, NONE parity cannot be used.

Network Interface

Ethernet:

  • Port: 1 x RJ-45 (10/100 Mbps)
  • Speed: 10Base-T or 100Base-TX (Auto-Sensing)
  • Cable Detection: Auto MDI/MDIX (works with straight or crossover cables)
  • Connector LEDs:
    • Green: Link status (On = connected, Blink = data activity)
    • Yellow: Speed indicator (Off = 10Mbps, On = 100Mbps)

Network Protocols:

  • IPv4: TCP, UDP, IP, ICMP, ARP, DHCP, PPPoE, DNS, DDNS, Telnet
  • IPv6: ICMPv6, TCPv6, UDPv6, IPv6 fragmentation
  • IPv6 Configuration: Stateless and Stateful (DHCPv6) auto-configuration
  • Security: SSL/TLS (Secure Socket Layer)
  • Management: Telnet, HTTP (ezManager)
  • Advanced: Telnet COM Port Control Option (RFC 2217)

Communication Modes

TCP Server (T2S):

  • Passive connection mode
  • Waits for incoming TCP client connections
  • Default local port: 1470
  • Ideal for centralized monitoring applications

TCP Client (COD):

  • Active connection mode
  • Initiates connection to remote TCP server
  • Configurable peer IP address and port
  • Perfect for data logging and cloud integration

AT Command Mode (ATC):

  • Control connections dynamically via AT commands
  • Both active and passive connections supported
  • Allows runtime configuration changes
  • Patented Sollae Systems technology

UDP Mode (U2S):

  • Connectionless communication
  • Broadcast and multicast support
  • Low-latency data transfer
  • N:M topology (many-to-many communication)

Power Specifications

  • Input Voltage: DC 5V ±0.5V (±10%)
  • Current Consumption: 190mA typical
  • Power Connector: DC jack (Outer: Ø3.5mm, Inner: Ø1.35mm)
  • Protection: Over-current, reverse voltage, and surge protection

Environmental Specifications

  • Operating Temperature: -40°C to +85°C (-40°F to 185°F)
  • Storage Temperature: -40°C to +85°C
  • Humidity: 5% to 95% RH, non-condensing
  • Certifications: KC, CE, FCC Class A, RoHS compliant

Physical Specifications

  • Dimensions: 94mm (W) x 57mm (L) x 24mm (H) (3.7" x 2.24" x 0.94")
  • Weight: Approximately 64g (2.26 oz)
  • Mounting: Desktop (compact footprint)
  • Enclosure: Industrial-grade plastic housing

Status Indicators (LEDs)

Top Panel LEDs:

  • PWR (Red): Power indicator (On = power supplied)
  • STS (Yellow): Status indicator
    • Blinks every second = Obtaining IP address
    • Blinks 4 times = No IP address (DHCP/PPPoE failure)
    • On = TCP connection established
    • Off = ISP mode
    • Simultaneous blink with LINK/RXD/TXD = Serial Configuration mode
  • LINK (Green): Ethernet link status (On = connected)
  • RXD (Yellow): Ethernet receive activity (Blinks = receiving data)
  • TXD (Green): Ethernet transmit activity (Blinks = transmitting data)

Front Panel LEDs:

  • Serial RXD (Yellow): Serial receive activity
  • Serial TXD (Green): Serial transmit activity

Real-World Applications

🏭 Industrial Automation & SCADA

  • Connect PLCs, RTUs, and industrial controllers to SCADA systems
  • Multi-drop RS-485 networks for sensor arrays and I/O modules
  • Remote monitoring and control of manufacturing equipment
  • Building automation and energy management
  • Factory floor data collection and distribution
  • Process control and monitoring

 Energy & Utilities

  • Smart grid monitoring and control
  • Substation automation (IEC 61850)
  • Remote meter reading (AMR/AMI) via RS-485 networks
  • Power distribution management
  • Environmental monitoring stations
  • Solar and wind farm monitoring

🏗️ Building Management Systems (BMS)

  • HVAC control systems
  • Lighting control networks
  • Access control and security systems
  • Fire alarm panels
  • Energy management systems
  • Multi-building campus networks

🚂 Transportation & Infrastructure

  • Railway signaling and control systems
  • Traffic management and ITS applications
  • Airport ground support equipment
  • Parking management systems
  • Toll collection systems
  • Fleet management

📡 Telecommunications

  • Serial console access to network equipment
  • Remote management of telecom infrastructure
  • Base station monitoring and control
  • Network operations center (NOC) equipment
  • Multi-drop equipment monitoring

🔬 Laboratory & Research

  • Network analytical instruments via RS-485
  • Automated testing equipment
  • Quality control systems
  • Research data acquisition
  • Environmental monitoring networks

🏥 Healthcare & Medical

  • Laboratory automation systems
  • Medical equipment networking
  • Building management in healthcare facilities
  • Environmental monitoring (temperature, humidity)
  • Equipment status monitoring

💧 Water & Wastewater Treatment

  • SCADA systems for water treatment plants
  • Remote pump station monitoring
  • Flow meter data collection
  • Chemical dosing control
  • Multi-site monitoring networks

As well as industrial environments, the CSE-H55N2 is ideal for serial RS-422 / RS-485 to Ethernet control of diverse applications such as:


What's in the Box

 CSE-H55N2 RS-422/RS-485 to Ethernet Converter (1 unit)
 Quick Start Guide
 Software available for download:

  • ezManager (Configuration utility for Windows)
  • ezVSP (Virtual Serial Port driver for Windows)
  • ezTerm (TCP/IP communication test tool)
  • User manual (PDF)
  • Datasheet (PDF)

All software is available for download from the Sollae Systems ezTCP website. See the link under the Technical Support & Resources section below.

Optional Accessories

+5V AC/DC Wall Mount Power Supply


Quick Setup Guide

Step 1: Physical Connections

For RS-422 (Full-Duplex):

  • Connect TX+, TX-, RX+, RX- to terminal block pins 1, 2, 4, 5
  • Connect GND to pins 3 and 6
  • Configure as RS-422 in ezManager

For RS-485 (Half-Duplex):

  • Connect TRX+, TRX- to terminal block pins 1, 2
  • Connect GND to pins 3 and 6
  • Configure as RS-485 in ezManager
  • Enable termination resistors on first and last devices only

Network & Power:

  • Connect Ethernet cable to your network (straight or crossover - auto-detected)
  • Connect 5V DC power adapter
  • PWR LED will illuminate when powered on

Step 2: Network Configuration

Default Settings:

  • IP Address: 10.1.0.1
  • Subnet Mask: 255.0.0.0
  • Local Port: 1470
  • Communication Mode: TCP Server
  • Serial Type: RS-485
  • Baud Rate: 19,200 bps
  • Data Format: 8-N-1 (8 data bits, No parity, 1 stop bit)

Configuration Methods:

Option A - ezManager via Ethernet (Recommended):

  1. Download and run ezManager (no installation required)
  2. Click [MAC Address Search] or [IP Address Search] to discover CSE-H55N2
  3. Select the device
  4. Configure network, serial, and communication parameters
  5. Click [Write] to save settings
  6. Device will reboot automatically

Option B - Serial Configuration:

  1. Press function button for 1-3 seconds to enter Serial Configuration mode
  2. All LEDs (STS, LINK, RXD, TXD) blink simultaneously
  3. Open ezManager, select [Serial] tab
  4. Select COM port and click [Open]
  5. Click [Read] to load current settings
  6. Modify parameters as needed
  7. Click [Write] to save

Option C - AT Commands:

  1. Set communication mode to "AT Command" via ezManager
  2. Connect via serial terminal (matching baud rate, 8-N-1)
  3. Use AT commands to configure parameters
  4. Save with AT+PWP command

Step 3: Test Communication

  1. Use ezManager's [Simple Test] feature
  2. Configure TCP connection (IP address and port)
  3. Open serial port with matching parameters
  4. Send test data in both directions to verify operation

Total setup time: 5-10 minutes


Advanced Features & Capabilities

RS-422/RS-485 Flexibility

RS-422 Mode (Full-Duplex):

  • Point-to-Point (1:1): Direct connection between two devices
  • Multi-Drop (1:N): One master transmitter, multiple receivers
  • Maximum Distance: 4,000 feet (1,200m)
  • Advantages: Full-duplex, simultaneous bidirectional communication
  • Use Cases: Long-distance point-to-point links, distributed monitoring

RS-485 Mode (Half-Duplex):

  • Multi-Drop Network: Up to 32 devices on one bus
  • Maximum Distance: 4,000 feet (1,200m)
  • Topology: Daisy-chain (linear bus)
  • Advantages: Multiple devices on single cable pair, cost-effective
  • Use Cases: Modbus RTU, Profibus, BACnet MS/TP, building automation

Built-in Protection:

  • 3.9kΩ Biasing Resistors: Embedded on all serial lines for idle state stability
  • TVS Protection: Transient Voltage Suppression protects against electrical spikes
  • Enhanced Noise Immunity: Upgraded design from CSE-H55N for improved stability

IPv6 Dual Stack Implementation

The CSE-H55N2 is fully IPv6-ready with comprehensive support:

IPv6 Features:

  • Full IPv4/IPv6 dual stack operation
  • Stateless address auto-configuration (SLAAC)
  • Stateful address configuration (DHCPv6)
  • IPv6 fragmentation support
  • ICMPv6, TCPv6, UDPv6 protocols
  • Seamless IPv4/IPv6 interoperability

Why IPv6 Matters:

  • Future-proof your infrastructure
  • Larger address space eliminates NAT complexity
  • Improved security with IPsec integration
  • Better support for IoT devices
  • Simplified network configuration

Multiple Connection Support

Simultaneous Monitoring (Firmware v2.3A+):

  • Multiple TCP clients can connect to one CSE-H55N2 simultaneously
  • Perfect for distributed monitoring applications
  • Each client receives the same serial data
  • Ideal for redundant monitoring systems
  • No additional hardware required

Use Cases:

  • Multiple operators monitoring the same equipment
  • Redundant data logging systems
  • Distributed SCADA architectures
  • Multi-site monitoring applications
  • Backup monitoring stations

SSL/TLS Security

Secure Socket Layer Protection:

  • Encrypt serial data over the network
  • Protect sensitive information in transit
  • Industry-standard SSL/TLS protocols
  • Certificate-based authentication
  • Prevents eavesdropping and tampering

Security Features:

  • IP address filtering (whitelist/blacklist)
  • MAC address filtering
  • Password-protected configuration
  • Secure firmware updates
  • Access control lists

Packet Fragmentation Control

Separator Settings:

  • Define custom packet delimiters
  • Control when data is transmitted over network
  • Optimize for different protocols and applications
  • Reduce network overhead
  • Improve application-level parsing

Data Frame Interval:

  • Configure timeout for packet assembly
  • Balance real-time performance vs. network efficiency
  • Adjustable from 0ms (immediate) to custom values
  • Optimize for your specific application

Telnet COM Port Control (RFC 2217)

Remote Serial Port Control:

  • Change serial parameters remotely over network
  • Adjust baud rate, parity, data bits, stop bits
  • Control flow control settings
  • Monitor serial port status
  • No physical access required

Benefits:

  • Remote troubleshooting and diagnostics
  • Dynamic serial parameter adjustment
  • Centralized serial port management
  • Reduced site visits and maintenance costs

Dynamic DNS (DDNS) Support

Always Accessible:

  • Automatic DNS updates when IP address changes
  • Use hostname instead of IP address
  • Perfect for dynamic IP environments
  • Supports major DDNS providers
  • Simplified remote access

PPPoE Support

Direct Internet Connection:

  • Connect directly to DSL/cable modems
  • No router required for simple deployments
  • Automatic authentication and connection
  • Ideal for remote installations
  • Reduced hardware costs

AT Command Mode

Patented Dynamic Control:

  • Change connection parameters at runtime
  • Establish/terminate connections via serial commands
  • No device reboot required
  • Perfect for applications requiring dynamic connectivity
  • Unique Sollae Systems technology

AT Command Capabilities:

  • Configure IP addresses and ports
  • Establish TCP connections
  • Control DHCP and PPPoE
  • Set DNS servers
  • Modify timeout values
  • Save settings to flash memory

Software Suite

ezManager - Configuration Utility

Comprehensive Management Tool for Windows:

Features:

  • No installation required (portable application)
  • Automatic device discovery via MAC or IP address
  • Intuitive graphical interface
  • Real-time status monitoring
  • Firmware update management
  • Configuration backup and restore
  • Simple test utility included
  • Batch configuration for multiple devices

Configuration Methods:

  • Via Ethernet (LAN)
  • Via Serial port
  • Remote configuration via Telnet

ezVSP - Virtual Serial Port Driver

Windows Virtual COM Port Driver:

Features:

  • Creates virtual COM ports on Windows PC
  • Legacy applications work without modification
  • Supports multiple virtual ports
  • Automatic reconnection on network interruption
  • Compatible with Windows 7/8/10/11
  • No application changes required

How It Works: The CSE-H55N2 appears as a local COM port on your Windows PC. Your existing serial software communicates with the virtual port, and ezVSP handles all network communication transparently.

ezTerm - Communication Test Tool

Simple TCP/IP Testing:

Features:

  • Quick TCP/IP communication testing
  • Both TCP and UDP support
  • Server and client modes
  • Hex and ASCII data display
  • Data logging capabilities
  • Perfect for troubleshooting

Smartphone Applications

Mobile Configuration:

  • ezManager app available for iOS and Android
  • Configure devices from your smartphone or tablet
  • Monitor status remotely
  • Perfect for field installations
  • Free download from app stores

RS-485 Network Configuration Guide

Termination Resistors

RS-485 networks require 120Ω termination resistors at both ends of the bus:

  • Enable termination on the first and last devices only
  • Disable termination on all middle devices
  • Improper termination causes communication errors and reflections
  • Use quality 120Ω resistors rated for your application

Biasing Resistors

The CSE-H55N2 includes embedded 3.9kΩ biasing resistors:

  • Purpose: Maintain idle state voltage levels on the bus
  • Benefit: Prevents false triggering and improves noise immunity
  • Built-in: No external biasing resistors required

Wiring Best Practices

Cable Selection:

  • Use twisted pair cable (Cat5e or better, or dedicated RS-485 cable)
  • Shielded cable recommended in electrically noisy environments
  • Characteristic impedance: 120Ω for proper termination

Topology:

  • Use daisy-chain topology (linear bus)
  • Avoid star topology (creates reflections)
  • Keep stubs shorter than 1 meter
  • Maximum bus length: 4,000 feet (1,200m)

Grounding:

  • Connect GND at both ends (pins 3 and 6)
  • Maintain proper grounding to prevent ground loops
  • Use single-point ground when possible
  • Shield grounding: Ground shield at one end only to prevent ground loops

Multi-Drop Addressing

For RS-485 networks with multiple devices:

  • Each device needs a unique address (configured in serial device)
  • CSE-H55N2 acts as transparent bridge (no addressing required)
  • Use Modbus RTU, Profibus, BACnet MS/TP, or other multi-drop protocols
  • Configure appropriate timeout values for polling applications
  • Maximum devices: 32 per bus (standard RS-485 limit)

Signal Quality

Differential Signaling:

  • RS-485 uses differential signaling (Data+ and Data-)
  • Common-mode noise rejection: Excellent immunity to electrical interference
  • Voltage levels: Typically ±200mV to ±6V differential

Noise Immunity:

  • TVS protection: Built-in transient voltage suppression
  • Biasing resistors: Embedded 3.9kΩ resistors for idle state stability
  • Shielded cable: Use in high-EMI environments

RS-422 Network Configuration Guide

1:1 Configuration (Point-to-Point)

Standard RS-422 Connection:

  • Connect TX+ to RX+, TX- to RX- on both ends
  • Full-duplex communication
  • Maximum distance: 4,000 feet (1,200m)
  • No termination resistors required for short distances
  • Use 120Ω termination for long distances or high speeds

1:N Configuration (Multi-Drop)

One Transmitter, Multiple Receivers:

  • One CSE-H55N2 transmits (TX+, TX-)
  • Multiple devices receive (RX+, RX-)
  • Up to 10 receivers typical (depends on driver capability)
  • Termination resistors at both ends of receive line
  • Ideal for distributed monitoring applications

Signal Ground, Biasing, and Termination

Ground Connection:

  • Connect GND (pins 3 and 6) at both ends
  • Prevents ground potential differences
  • Improves signal integrity

Biasing Resistors:

  • Embedded 3.9kΩ biasing resistors included
  • Maintains idle state voltage levels
  • No external biasing required

Termination Resistors:

  • 120Ω resistors at both ends of long cables
  • Prevents signal reflections
  • Required for high-speed or long-distance applications

Operation Modes

Normal Mode

Standard Operation:

  • For normal data communication
  • Four communication modes available (TCP Server, TCP Client, AT Command, UDP)
  • Configuration via ezManager or Telnet
  • Real-time status monitoring
  • Default operating mode

Serial Configuration Mode

Serial Port Configuration:

  • Configure via RS-422/485 port
  • Use ezManager Serial tab
  • No network connection required
  • Perfect for initial setup or network troubleshooting

How to Enter:

  • Press function button for 1-3 seconds
  • All LEDs (STS, LINK, RXD, TXD) blink simultaneously
  • Connect via serial port with matching parameters

ISP Mode (In-System Programming)

Firmware Updates:

  • For upgrading firmware
  • Bypass security settings (password recovery)
  • Direct firmware upload via ezManager
  • Factory reset capability
  • Emergency recovery mode

How to Enter:

  • Press function button for more than 3 seconds during power-on
  • STS LED turns off
  • Upload firmware via ezManager

Network Topology Examples

1:1 Direct Connection

[PC] ←→ [CSE-H55N2] ←→ [RS-422/485 Device]

Simple point-to-point connection for testing or isolated systems.

LAN Integration

[Network Switch] ←→ [CSE-H55N2] ←→ [RS-485 Bus] ←→ [Device 1] [Device 2] ... [Device 32]
                 ←→ [PC 1]
                 ←→ [PC 2]

Multiple PCs access RS-485 multi-drop network over local network.

Internet Access via Router

[Internet] ←→ [Router] ←→ [CSE-H55N2] ←→ [RS-485 Network]

Remote access to serial devices from anywhere in the world.

Serial Tunneling

[RS-485 Device A] ←→ [CSE-H55N2 A] ←→ [Network] ←→ [CSE-H55N2 B] ←→ [RS-485 Device B]

Extend serial connections over long distances via Ethernet.

Multiple Monitoring

                    ←→ [Monitor PC 1]
[CSE-H55N2] ←→ [Network] ←→ [Monitor PC 2]
                    ←→ [Monitor PC 3]

Multiple clients simultaneously monitor one RS-485 network (firmware v2.3A+).

Multi-Drop RS-485 Network

[CSE-H55N2] ←→ [RS-485 Bus] ←→ [Sensor 1] [Sensor 2] ... [Sensor 32]
     ↑              (Termination)                    (Termination)
     |
[Ethernet Network]

Classic RS-485 multi-drop topology with up to 32 devices.


Frequently Asked Questions

Q: What's the difference between the CSE-H55N2 and the CSE-H53N?
A: The CSE-H55N2 supports RS-422/RS-485 (long-distance, multi-drop capable), while the CSE-H53N supports RS-232 only (short-distance, point-to-point). The CSE-H55N2 is ideal for industrial multi-drop networks up to 4,000 feet, while the CSE-H53N is for simple RS-232 device networking.

Q: What's the difference between the CSE-H55N2 and the original CSE-H55N?
A: The CSE-H55N2 is an upgraded version with improved stability against noise and electrical damage on RS-422/485 lines. It features enhanced protection with embedded TVS and better noise immunity. The software functionality remains the same.

Q: Can I use this for Modbus RTU networks?
A: Yes! The CSE-H55N2 is perfect for Modbus RTU over RS-485. It acts as a transparent bridge, allowing your Modbus master to communicate with up to 32 Modbus slave devices over Ethernet. The converter doesn't interpret Modbus protocol—it simply passes data transparently.

Q: How many devices can I connect on an RS-485 network?
A: Standard RS-485 supports up to 32 devices (unit loads) per bus. The CSE-H55N2 counts as one device. For larger networks, use RS-485 repeaters to extend beyond 32 devices.

Q: Do I need termination resistors?
A: Yes, RS-485 networks require 120Ω termination resistors at both ends of the bus (first and last devices). The CSE-H55N2 includes embedded biasing resistors but you must add external termination resistors at the bus ends.

Q: What's the maximum cable distance?
A: RS-422/RS-485 supports up to 4,000 feet (1,200m) at lower baud rates. At maximum baud rate (230.4 kbps), distance may be limited to 100-300 feet depending on cable quality and environmental noise.

Q: Does the CSE-H55N2 support IPv6?
A: Yes! The CSE-H55N2 has full IPv4/IPv6 dual stack support with both stateless (SLAAC) and stateful (DHCPv6) address auto-configuration. It's fully ready for modern IPv6 networks.

Q: Can multiple computers access the serial network simultaneously?
A: Yes, with firmware version 2.3A or later, multiple TCP clients can connect to the CSE-H55N2 simultaneously. All connected clients receive the same serial data, perfect for distributed monitoring applications.

Q: What is AT Command mode?
A: AT Command mode is a patented Sollae Systems feature that allows you to control TCP/IP connections dynamically via serial AT commands. You can establish connections, change IP addresses, modify ports, and configure network parameters without rebooting the device.

Q: How do I configure the CSE-H55N2?
A: You have multiple options: (1) ezManager via Ethernet, (2) ezManager via serial port, (3) AT commands via serial terminal, or (4) Telnet. Choose the method that works best for your deployment.

Q: What is the default IP address?
A: The default IP address is 10.1.0.1 with subnet mask 255.0.0.0. The default local port is 1470, serial type is RS-485, and the default serial settings are 19,200 bps, 8-N-1.

Q: Can I use this outdoors?
A: The CSE-H55N2 is rated for industrial temperatures (-40°C to +85°C) but is not waterproof. For outdoor use, install in a weatherproof enclosure (NEMA 4X or IP65 rated).

Q: Does it support SSL/TLS encryption?
A: Yes, the CSE-H55N2 includes SSL/TLS support for secure data transmission over the network. This protects your serial data from eavesdropping and tampering.

Q: What operating systems are supported?
A: The device works with any OS that supports TCP/IP (Windows, Linux, macOS, Unix, etc.). The ezManager and ezVSP utilities are Windows-only, but you can configure via Telnet or AT commands from any platform.

Technical Support & Resources


Videos

Sollae Systems ezTCP CSE-H55N2 Introductory video

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