Comprehensive Product Summary – SUNIX ESW-2042SS Industrial Lite-Managed 4*TX 2*FX SM Switch

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### 1. Product Overview

Product Name: Industrial Lite-Managed 4*TX 2*FX SM Switch
Model Number: ESW-2042SS
Article Number: ESW-2042SS
Series: ESW-2000 Series (Lite-Managed Industrial Ethernet Switches)
Manufacturer: SUNIX Co., Ltd.
Product Category: Industrial Ethernet Switches – Lite-Managed Type
Product Type: 6-Port Industrial Ethernet Switch (4 × 10/100Base‑T(X) RJ‑45 + 2 × 100Base‑FX Single‑Mode Fiber Ports)

The SUNIX ESW‑2042SS is a rugged, industrial‑grade Lite‑Managed Ethernet switch designed for mission‑critical automation and control networks. It combines four copper Fast Ethernet ports with two single‑mode fiber optic ports, providing extended communication distances up to 30 km. The switch supports SUNIX’s proprietary ELITE‑Ring™ redundancy technology, ensuring sub‑10 ms recovery time across up to 250 interconnected units. It is engineered for harsh industrial environments, featuring wide‑range DC power input, redundant power design, high ESD/surge protection, and extended temperature operation from −40 °C to +75 °C.

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### 2. Key Features

- High‑Reliability Industrial Design:
Built for continuous 24/7 operation in demanding environments such as factory automation, transportation, and utilities.
IP30 aluminum enclosure with DIN‑rail or wall‑mount installation options.

- Fast Redundant Ethernet Ring:
Incorporates ELITE‑Ring™ technology with recovery time < 10 ms over 250 units, ensuring deterministic network performance.
Supports Ring Coupling and Dual Homing for multi‑ring and redundant uplink topologies.

- Lite‑Managed Functionality:
Provides essential management via Web browser and SUNIX Commander Pro Windows utility.
Supports configuration backup/restore, firmware upgrade, VLAN, RSTP, and system alarms.

- Dual Power Inputs:
Redundant 12–48 V DC power inputs (7‑pin terminal block + DC jack) with reverse polarity protection and surge immunity.

- Comprehensive Protection:
- ESD protection: ± 4 kV DC on Ethernet ports
- Surge protection: ± 2 kV DC on power lines
- Relay output alarm for power or port failure events (1 A @ 24 V DC)

- Extended Environmental Range:
Operates reliably from −40 °C to +75 °C, 5–95 % RH non‑condensing.

- Fiber Optic Connectivity:
Two 100Base‑FX single‑mode ports (SC/ST connectors) supporting up to 30 km transmission distance at 1310 nm wavelength.

- Network Management & Diagnostics:
- Web‑based GUI and Windows utility configuration
- System log, e‑mail warning, and relay alarm output
- Port status monitoring and fault indication LEDs
- VLAN segmentation and IP/MAC‑based security

- Compact Industrial Form Factor:
Dimensions 106 × 52 × 144 mm (D × W × H), lightweight aluminum housing for space‑constrained control panels.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Ethernet Standards | IEEE 802.3 (10Base‑T), IEEE 802.3u (100Base‑TX/FX), IEEE 802.3w (RSTP), IEEE 802.3x (Flow Control), IEEE 802.1Q (VLAN) |
| Ports | 4 × 10/100Base‑T(X) RJ‑45 Auto MDI/MDI‑X + 2 × 100Base‑FX (Single‑Mode SC/ST) |
| Transmission Speed | 10/100 Mbps (auto‑negotiation) |
| Transmission Distance | RJ‑45 up to 100 m (CAT 5/5e UTP); Fiber up to 30 km (single‑mode 9/125 µm @ 1310 nm) |
| Switching Method | Store‑and‑Forward |
| MAC Address Table | 1 K entries |
| Flow Control | IEEE 802.3x (full‑duplex) and back‑pressure (half‑duplex) |
| VLAN Support | Port‑based VLAN |
| Redundancy Protocols | ELITE‑Ring™ (< 10 ms recovery), RSTP (IEEE 802.1w), STP |
| Security | IP security, MAC‑based access control |
| Diagnostics | Alarm relay output, LED status indicators, e‑mail warning, system log |
| Power Input | Dual 12–48 V DC (24 V nominal) via 7‑pin removable terminal block + DC jack |
| Power Consumption | ≤ 7.5 W max |
| Relay Output | 1 × configurable alarm relay (1 A @ 24 V DC) |
| Protection | ESD ± 4 kV DC (Ethernet ports); Surge ± 2 kV DC (power); Reverse polarity protection |
| Enclosure | IP30 rated aluminum housing |
| Dimensions (D × W × H) | 106 × 52 × 144 mm |
| Weight | Approx. 0.8 kg |
| Mounting | DIN‑rail and wall‑mount kits included |
| Operating Temperature | −40 °C to +75 °C |
| Storage Temperature | −40 °C to +85 °C |
| Operating Humidity | 5 % to 95 % RH (non‑condensing) |
| Cooling | Passive fanless design |
| Ingress Protection | IP30 |
| Certifications | CE Class A, FCC Part 15 Class A, RoHS compliant |
| EMS Immunity | EN61000‑4‑2 (ESD), EN61000‑4‑3 (RS), EN61000‑4‑4 (EFT), EN61000‑4‑5 (Surge Level 3), EN61000‑4‑6 (CS Level 3) |
| Mechanical Tests | Shock IEC 60068‑2‑27; Vibration IEC 60068‑2‑6; Free‑fall IEC 60068‑2‑32 |
| Warranty | 5 years limited manufacturer warranty |

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### 4. Functionality

The ESW‑2042SS functions as a Lite‑Managed Fast Ethernet switch optimized for industrial automation networks requiring high reliability and minimal downtime. It integrates both copper and fiber interfaces, enabling flexible network topologies and long‑distance connectivity.

Operational Principles:
- Each RJ‑45 port supports auto‑negotiation for 10/100 Mbps and full/half‑duplex modes.
- Two 100Base‑FX single‑mode fiber ports extend network reach up to 30 km and provide EMI/RFI immunity.
- The switch employs store‑and‑forward packet processing with flow control to prevent frame loss.
- ELITE‑Ring™ redundancy ensures sub‑10 ms failover between nodes, maintaining deterministic data flow.
- RSTP and STP protocols provide standards‑based loop prevention and backup path selection.
- Web GUI and SUNIX Commander Pro utility allow configuration of IP settings, VLANs, redundancy modes, and alarms.
- System alarms can be triggered by power failure or port link loss, with notifications via relay output and e‑mail.

Typical Applications:
- Factory and process automation networks
- Building management and security systems
- Transportation and traffic control infrastructure
- Power utility and substation communication
- Oil and gas monitoring systems
- Remote I/O and PLC network integration

Compatibility:
Interoperable with standard Ethernet devices and protocols (IEEE 802.3 compliant). Supports ST/SC fiber connectors and standard CAT 5/5e UTP cabling.

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### 5. Components & Accessories

Included Items:
- ESW‑2042SS switch unit
- 7‑pin removable terminal block (for dual power input and relay output)
- DIN‑rail mounting kit (pre‑installed)
- Wall‑mount bracket and screws
- Quick Installation Guide (QIG)
- Dust covers for unused ports

Optional Accessories:
- ST or SC fiber connectors (single‑mode type)
- External DC power adapters (12–48 V DC)
- SUNIX Commander Pro software package (for Windows)
- Replacement DIN‑rail mount kit

Connectors:
- RJ‑45 Ports: Standard 8‑pin Ethernet connectors supporting auto MDI/MDI‑X
- Fiber Ports: SC/ST connectors (single‑mode 9/125 µm)
- Power Input: 7‑pin terminal block (V1+, V1−, V2+, V2−, Relay +, Relay −, GND) + DC jack
- Relay Output: 1 A @ 24 V DC configurable contact

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### 6. Installation & Setup

Mounting Options:
- DIN‑Rail Installation: Attach the rear metal spring clip to a standard DIN rail and press until it clicks into place.
- Wall Mounting: Remove the DIN‑rail kit and use the included wall mount panel and screws to secure the unit.

Power Connection:
- Connect redundant power sources (12–48 V DC) to the terminal block inputs (PWR1 and PWR2).
- The switch powers on automatically when voltage is applied; no power switch is present.
- Relay output contacts can be wired to external alarm systems for fault notification.

Network Cabling:
- Copper: Use CAT 5/5e UTP cables up to 100 m. Auto MDI/MDI‑X eliminates the need for crossover cables.
- Fiber: Connect TX of Switch A to RX of Switch B and vice versa. Supports 1310 nm single‑mode fiber up to 30 km.

Configuration:
- Default IP Address: 192.168.1.1
- Subnet Mask: 255.255.255.0
- Username/Password: admin/admin
- Access via Web browser or SUNIX Commander Pro utility for initial setup.
- Configure VLANs, redundancy modes, and alarm settings as required.

LED Indicators:
- Ready: System boot complete
- PWR1/PWR2: Power input status
- Master: Indicates Ring Master role
- E‑Ring: ELITE‑Ring active
- Fault: Power or port failure
- LNK/ACT: Per‑port link and activity status

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### 7. Performance & Capabilities

- Switching Capacity: 1.2 Gbps non‑blocking throughput
- Packet Forwarding Rate: ~0.9 Mpps for 64‑byte frames
- Latency: < 10 µs typical for 100 Mbps links
- Redundancy Recovery Time: < 10 ms (ELITE‑Ring™)
- Power Efficiency: ≤ 7.5 W max consumption with dual redundant inputs
- Reliability: MTBF > 200,000 hours (estimated)
- Limitations: Lite‑Managed series offers essential management only (no SNMP or advanced QoS features found in full Managed models).

The ESW‑2042SS delivers deterministic Ethernet performance suitable for real‑time industrial control applications. Its fast failover and redundant power design ensure uninterrupted operation even under fault conditions.

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### 8. Standards & Compliance

Ethernet Protocols and Standards:
- IEEE 802.3 (10Base‑T)
- IEEE 802.3u (100Base‑TX/FX)
- IEEE 802.3w (RSTP)
- IEEE 802.3x (Flow Control)
- IEEE 802.1Q (VLAN Tagging)

Environmental and Safety Compliance:
- EMC: FCC Part 15 Class A, CISPR (EN55022) Class A, CE Mark
- EMS Immunity: EN61000‑4‑2 (ESD), EN61000‑4‑3 (RS), EN61000‑4‑4 (EFT), EN61000‑4‑5 (Surge Level 3), EN61000‑4‑6 (CS Level 3)
- Mechanical Durability: IEC 60068‑2‑27 (Shock), IEC 60068‑2‑6 (Vibration), IEC 60068‑2‑32 (Free‑fall)
- Safety: Conforms to UL60950 and CAN/CSA‑C22.2 No. 60950 standards for information technology equipment
- RoHS Compliance: Lead‑free and environmentally safe materials

These certifications ensure the ESW‑2042SS meets global industrial networking standards for electromagnetic compatibility, safety, and environmental resilience.

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### 9. Additional Information

Warranty: 5‑Year limited manufacturer warranty covering defects in materials and workmanship.

Technical Support & Maintenance:
SUNIX provides comprehensive technical support through e‑mail and online resources. Firmware updates and user manuals are available from the official website (www.sunix.com.tw). Routine maintenance includes periodic inspection of power connections and fiber interfaces to ensure optimal signal integrity.

Firmware Updates:
Upgradable via TFTP or SUNIX Commander Pro utility. Supports configuration backup and restore functions for rapid deployment or replacement.

Support Contact:
- E‑mail: info@sunix.com.tw
- Website: https://www.sunix.com.tw
- Telephone: +886‑2‑8913‑1987
- Fax: +886‑2‑8913‑1986

Maintenance Recommendations:
- Ensure adequate ventilation and avoid exposure to direct sunlight or corrosive environments.
- Use industrial‑grade power supplies within specified voltage range.
- Periodically verify tightness of terminal block connections and clean fiber connectors with appropriate tools.

Product Lifecycle and Upgradability:
The ESW‑2042SS is part of the modular ESW‑2000 series, allowing easy migration to higher‑port or Gigabit models (ESW‑8062 or ESW‑8082 series) while maintaining configuration compatibility through SUNIX Commander Pro.

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### Summary

The SUNIX ESW‑2042SS is a compact yet powerful industrial Lite‑Managed Ethernet switch engineered for environments where reliability, redundancy, and extended communication distance are critical. With 4 Fast Ethernet RJ‑45 ports and 2 single‑mode fiber ports, it bridges copper and fiber networks seamlessly. Its ELITE‑Ring™ redundancy ensures sub‑10 ms recovery, while dual power inputs and robust ESD/surge protection guarantee continuous operation in harsh conditions.

Ideal for industrial automation, transportation, and utility applications, the ESW‑2042SS delivers deterministic Ethernet performance with essential management features in a rugged, energy‑efficient form factor. Backed by SUNIX’s 5‑year warranty and global support network, it provides a cost‑effective and reliable solution for industrial network infrastructure.