Comprehensive Product Summary – Moxa NPort Server Lite DE‑301

---

### 1. Product Overview

Product Name: NPort Server Lite
Model: DE‑301
Series: NPort Server Lite Family
Article Number: DE‑301
Manufacturer: Moxa Technologies Co., Ltd.

The Moxa NPort Server Lite DE‑301 is a compact, single‑port Ethernet‑to‑RS‑232 device server designed to connect serial devices to TCP/IP networks. It provides a transparent bridge between legacy serial equipment and modern Ethernet infrastructures, enabling remote access, control, and data acquisition over LAN or WAN environments. The DE‑301 belongs to Moxa’s NPort family, which includes the NPort Express, NPort Server Lite, and NPort Server Pro series.

This model is engineered for industrial and commercial applications requiring reliable serial‑to‑Ethernet communication, offering a 10/100 Mb auto‑detect Ethernet interface, a DB9 female RS‑232 serial connector, and a compact form factor suitable for desktop or panel installation.

---

### 2. Key Features

- Ethernet‑to‑Serial Conversion: Converts RS‑232 serial data to Ethernet TCP/IP packets, allowing serial devices to be accessed over a network.
- Single RS‑232 Port: One DB9 female serial port supporting data rates from 50 bps to 230.4 kbps.
- Auto‑Detect Ethernet Interface: 10/100 Mb Ethernet port with RJ45 connector, supporting auto‑negotiation and full/half duplex operation.
- Embedded 16‑bit CPU and 512 KB RAM: Ensures stable performance and efficient data handling.
- Multiple Operation Modes: Supports Host‑Based/Driver Mode, Pair Connection Mode, TCP Server, TCP Client, and UDP Server/Client.
- Real COM and Real TTY Drivers: Provides transparent serial communication for Windows and Linux hosts.
- Data Packing and Delimiter Functions: Optimizes network efficiency by grouping serial data into packets based on delimiters or time intervals.
- Access Control: Restricts host access by IP address or port for enhanced network security.
- Firmware Upgradable: Supports remote firmware updates via the NPort Management Suite.
- Compact and Durable Design: Small footprint (155 × 105 × 33 mm) with robust construction for industrial environments.
- Power Supply: Operates from 230 VAC via included external power adapter.
- Easy Configuration: Supports configuration via NPort Management Suite, Telnet console, ARP command, or serial console.
- Cross‑Platform Support: Compatible with Windows 95/98/ME/NT/2000/XP and Linux systems.

---

### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model | DE‑301 |
| CPU | 16‑bit embedded processor |
| Memory | 512 KB RAM |
| Ethernet Interface | 10/100 Mb auto‑detect, RJ45 connector |
| Serial Interface | RS‑232, DB9 female |
| Serial Speed | 50 bps – 230.4 kbps |
| Serial Signals Supported | TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND |
| Dimensions (W × D × H) | 155 × 105 × 33 mm |
| Weight | Approx. 0.3 kg (typical) |
| Power Input | 230 VAC external power adapter |
| Operating Temperature | 0 °C – 55 °C (typical) |
| Storage Temperature | −20 °C – 85 °C |
| Humidity | 5 % – 95 % RH (non‑condensing) |
| Network Protocols Supported | TCP, UDP, IP, ICMP, ARP, DHCP, BOOTP |
| Default IP Address | 192.168.127.254 |
| Configuration Interfaces | NPort Management Suite, Telnet, ARP, Serial Console |
| Mounting Options | Desktop or panel mounting |
| Certifications | CE, FCC Class A (typical for Moxa industrial devices) |

---

### 4. Functionality

The DE‑301 functions as a device server, bridging serial and Ethernet communication. It encapsulates serial data into TCP/IP packets for transmission over Ethernet and decapsulates incoming network data back into serial form.

Primary Use Cases:
- Connecting legacy RS‑232 devices (PLC, barcode scanners, sensors, CNC controllers) to Ethernet networks.
- Remote monitoring and control of serial equipment via LAN/WAN.
- Extending serial communication distance beyond RS‑232’s 15 m limitation using Pair Connection Mode.
- Integrating serial devices into SCADA, MES, or industrial automation systems.

Operation Modes:
1. Host‑Based/Driver Mode: Creates virtual COM ports on the host PC using Moxa’s Real COM driver (Windows) or Real TTY driver (Linux). Applications communicate as if the device were locally attached.
2. Pair Connection Mode: Two DE‑301 units form a transparent serial tunnel over Ethernet, replacing long RS‑232 cables.
3. TCP Server Mode: The DE‑301 listens for incoming TCP connections from clients.
4. TCP Client Mode: The DE‑301 initiates a TCP connection to a remote server when serial data is received.
5. UDP Server/Client Mode: Enables fast, connectionless data transmission and multicast/broadcast communication.

Compatibility:
- Windows 95/98/ME/NT/2000/XP (Real COM driver)
- Linux (Real TTY driver)
- Compatible with Moxa PComm Lite Serial Control Library for custom application development.

---

### 5. Components & Accessories

Included Items:
- NPort Server Lite DE‑301 main unit
- External 230 VAC power adapter
- Quick installation guide and documentation
- Software CD containing NPort Management Suite and drivers

Connectors:
- Ethernet: RJ45 (10/100 Mb auto‑detect)
- Serial: DB9 female (RS‑232)
- Power: Barrel‑type DC input jack (via external adapter)

Optional Accessories:
- DIN‑rail or wall‑mounting kits (depending on installation requirements)
- Serial cables (DB9 male‑to‑female or custom pinouts)
- Replacement power adapters

---

### 6. Installation & Setup

Requirements:
- Ethernet network with available IP address (static or DHCP)
- Windows or Linux host for configuration
- Administrative access for driver installation

Initial Configuration Methods:
1. NPort Management Suite (Recommended):
- Windows‑based GUI for discovering, configuring, and managing NPorts.
- Supports broadcast search, IP assignment, firmware upgrade, and configuration import/export.
2. ARP Command:
- Associates the NPort’s MAC address with a new IP address using the `arp -s` command.
3. Telnet Console:
- Access via Telnet to configure network parameters and operation modes.
4. Serial Console:
- For models with console ports (not applicable to DE‑301), configuration via RS‑232 terminal emulator.

Factory Default Settings:
- IP Address: 192.168.127.254
- Netmask: 255.255.255.0
- Gateway: 0.0.0.0

Mounting Options:
- Desktop placement or panel mounting using optional brackets.

Software Installation:
- Install NPort Management Suite using `Dssetup.exe`.
- Components include Configurator, Real COM Installer, NPort Monitor, and Batch Configurator.

Driver Setup:
- Use Real COM Installer to map virtual COM ports on the host PC.
- COM numbers can be reassigned and saved for persistent configuration.

---

### 7. Performance & Capabilities

- Serial Data Rate: 50 bps – 230.4 kbps
- Ethernet Throughput: 10/100 Mb auto‑negotiation
- Latency: Low‑latency serial‑to‑Ethernet conversion suitable for real‑time control applications.
- Data Packing: Configurable by delimiter (hex value) or time interval (1–65535 ms) to optimize network efficiency.
- TCP Alive Check: Adjustable (1–99 minutes) to maintain or close idle connections.
- Force Transmit Timer: Ensures timely data transmission even with low data volumes.
- Connection Reliability: Automatic reconnection and watchdog mechanisms maintain stable communication.
- Access Control: Up to multiple host IPs can be granted or restricted per port or per device.
- Scalability: Supports up to 128 ports per Windows 95/98/ME host and 256 ports per Windows NT/2000/XP host when multiple NPorts are installed.

Limitations:
- Single RS‑232 port (no RS‑422/485 support).
- No hardware serial console (configuration via Ethernet only).
- Designed for moderate industrial environments (not ruggedized for extreme conditions).

---

### 8. Standards & Compliance

Network Standards:
- IEEE 802.3 10Base‑T
- IEEE 802.3u 100Base‑TX

Protocols Supported:
- TCP, UDP, IP, ICMP, ARP, DHCP, BOOTP, Telnet

Software Compatibility:
- Windows 95/98/ME/NT/2000/XP (Real COM driver)
- Linux (Real TTY driver)

Regulatory Compliance (typical for Moxa industrial devices):
- CE (EMC Directive)
- FCC Part 15 Class A
- RoHS compliant

Industry Standards:
- Supports standard RS‑232 signaling and pin assignments.
- Conforms to Ethernet and TCP/IP interoperability standards.

---

### 9. Additional Information

Warranty:
Standard Moxa warranty (typically 3 years) covering defects in materials and workmanship.

Technical Support:
- Email: support@moxa.com.tw
- Website: [https://www.moxa.com](https://www.moxa.com)
Provides driver downloads, firmware updates, manuals, and FAQs.

Maintenance:
- Periodic firmware updates via NPort Management Suite.
- Configuration backup and restore using export/import functions.
- Regular inspection of power supply and network connections recommended.

Firmware Upgrade:
- Performed through Configurator utility using *.ROM files.
- Supports batch upgrade for multiple devices of the same model.

Software Utilities Overview:
- Configurator: GUI for configuration, firmware upgrade, and access control.
- Real COM Installer: Maps and manages virtual COM ports on Windows hosts.
- NPort Monitor: Monitors port status and activity.
- Batch Configurator (npbc.exe / npbc.tgz): Command‑line tool for mass configuration under Windows or Linux.

Security & Access Control:
- Password protection for configuration access.
- IP‑based access control lists (ACLs) for host authorization.

Maintenance & Updates:
- Firmware and driver updates available from Moxa’s website.
- Configuration export/import simplifies deployment across multiple units.

---

### Summary

The Moxa NPort Server Lite DE‑301 is a robust, single‑port Ethernet‑to‑RS‑232 device server engineered to integrate serial devices into modern Ethernet networks. With its 16‑bit CPU, 512 KB RAM, and support for multiple communication modes, it provides flexible connectivity for industrial automation, building management, and remote monitoring systems.

Its comprehensive software suite—NPort Management Suite—simplifies installation, configuration, and maintenance, while Real COM and Real TTY drivers ensure seamless integration with existing serial applications. The DE‑301’s compact design, reliable performance, and extensive configuration options make it an ideal solution for bridging legacy serial equipment to IP‑based infrastructures.

---

End of Product Summary – Moxa NPort Server Lite DE‑301