UOTEK UT-6405CA 5-Port 100M Unmanaged Industrial Ethernet Switch User Manual

1. Introduction

The UOTEK UT-6405CA is a robust 5-port 100M unmanaged Ethernet switch designed for industrial applications. It ensures reliable data transmission and features a compact design with support for industrial standard DIN-rail mounting, making it easy to integrate into various industrial network environments. This manual provides detailed instructions for the installation, operation, and maintenance of the UT-6405CA switch.

UOTEK UT-6405CA 5-Port Industrial Ethernet Switch, top-down view showing 5 RJ45 ports and power terminal. — Figure 1: UOTEK UT-6405CA Industrial Ethernet Switch (Top-down view)

2. Key Features

High-quality optoelectronic integration module for excellent optical and electrical characteristics.
Ensures reliable data transmission and extended operational lifespan.
Supports full-duplex or half-duplex mode with auto-negotiation capability.
10/100Mbps auto-adaptation for network speed.
Fully automatic cross-recognition of network ports (Auto MDI/MDI-X), eliminating manual switching.
Plug and play functionality for easy setup.
Ultra-wide operating temperature range: -40℃ to 75℃.
Ultra-wide voltage input: 12/24/48VDC (10.8~52.8VDC), with reverse connection protection.
DC input positive and reverse protection to prevent instrument burnout.
Industrial standard DIN-rail mounting for easy installation.

3. Technical Specifications

Table 1: UT-6405CA Technical Specifications
Category	Specification
Standards	IEEE 802.3 10Base-T, IEEE 802.3u 100Base-TX
Ports	5 x 10/100Base-TX RJ45 ports, auto-detect, full/half Duplex MDI/MDI-X Adaptive
LED Indicators	PWR (Power Light), Network Indicators (for each port)
Power Requirement	Input Voltage: 12/24/48VDC (10.8~52.8VDC) Power Consumption: 50mA@24Vmax Interface Terminal: 1 pluggable 3-pin terminal block Overload protection: Yes Reverse polarity protection: Yes
Switching Performance	Forwarding rate: 148810pps Transmission Mode: Store-and-Forward MAC address space: 2K Cache Space: 768Kb Backplane Bandwidth: 1G
Mechanical Characteristics	Enclosure: IP40 Mounting: DIN-Rail Dimension (WxHxD): 100mm x 80mm x 27.5mm Weight: 560g
Working Environment	Operating Temperature: -40℃ to 75℃ Storage Temperature: -40℃ to 85℃ Relative Humidity: 0~95% (non-condensing)
Industry Standard Compliance	EMI: FCC Part 15 Subpart B class A, EN55022 class A EMS: IEC(EN)61000-4-2(ESD), IEC(EN)61000-4-3(RS), IEC(EN)61000-4-4(EFT), IEC(EN)61000-4-5(Surge), IEC(EN)61000-4-6(CS), IEC(EN)61000-4-8 Shock: IEC 60068-2-27 Freefall: IEC 60068-2-32 Vibration: IEC 60068-2-6

4. Package Contents

The standard package for the UOTEK UT-6405CA includes:

1 x UOTEK UT-6405CA 5-Port Industrial Ethernet Switch
DIN-rail mounting kit (pre-attached or included)
User Manual (this document)

Please inspect the package contents upon receipt to ensure all items are present and undamaged. If any items are missing or damaged, please contact your vendor immediately.

5. Installation

5.1 Safety Precautions

Ensure the power supply is disconnected before installation or maintenance.
Install the device in a well-ventilated area to prevent overheating.
Avoid exposing the device to moisture, dust, or extreme temperatures.
Use appropriate tools and follow safety guidelines for electrical installations.

5.2 DIN-Rail Mounting

The UT-6405CA is designed for easy DIN-rail mounting. The DIN-rail clip is typically pre-attached to the rear of the device.

Align the top of the DIN-rail clip with the top edge of the DIN-rail.
Push the device downwards until the clip snaps securely onto the DIN-rail.
Ensure the device is firmly attached and does not wobble.

UOTEK UT-6405CA Industrial Ethernet Switch, side view showing DIN-rail mounting bracket. — Figure 2: DIN-rail Mounting Bracket

5.3 Power Connection

The UT-6405CA supports a wide voltage input range of 12/24/48VDC (10.8~52.8VDC) and includes reverse polarity protection.

Locate the 3-pin pluggable terminal block on the device.
Connect the positive (+) and negative (-) wires from your DC power supply to the corresponding terminals on the block.
Ensure proper grounding by connecting the ground wire to the designated ground screw on the device.
Insert the terminal block securely into the power input port on the switch.
Verify all connections are tight and correct before applying power.

UOTEK UT-6405CA Industrial Ethernet Switch, front view showing power terminal and ground screw. — Figure 3: Power Terminal and Ground Connection

5.4 Network Connection

Connect your Ethernet devices (e.g., industrial PCs, PLCs, sensors) to the RJ45 ports on the switch using standard Ethernet cables.

The switch supports 10/100Mbps auto-adaptation and auto MDI/MDI-X, so you do not need to worry about cable types (straight-through or crossover).
Plug one end of the Ethernet cable into an RJ45 port on the switch and the other end into your network device.
The corresponding network indicator LED will light up when a valid connection is established.

6. Operation

6.1 Powering On

Once the power and network connections are securely made, apply power to the switch. The PWR LED indicator will illuminate, indicating that the device is powered on and operating correctly.

6.2 LED Indicators

The UT-6405CA features LED indicators to provide status information:

PWR LED:
- On: Device is powered on.
- Off: Device is not powered on.
Network Indicators (1-5, for each RJ45 port):
- On: A valid network link is established.
- Flashing: Data is being transmitted or received through the port.
- Off: No network link or device is disconnected.

UOTEK UT-6405CA Industrial Ethernet Switch, showing LED indicators for PWR and network ports. — Figure 4: LED Indicators

6.3 Plug and Play Functionality

The UT-6405CA is an unmanaged switch, meaning it requires no configuration. Simply connect your devices, and it will automatically facilitate network communication.

7. Maintenance

7.1 Cleaning

Ensure the device is powered off and disconnected from all cables before cleaning.
Use a soft, dry cloth to wipe the exterior of the switch.
Do not use liquid or aerosol cleaners, as they may damage the device.

7.2 Environmental Considerations

Regularly check the operating environment to ensure it remains within the specified temperature and humidity ranges (-40℃ to 75℃, 0~95% non-condensing).
Ensure adequate airflow around the device to prevent heat buildup.

8. Troubleshooting

Table 2: Common Troubleshooting Steps
Problem	Possible Cause	Solution
No Power (PWR LED Off)	No power supply. Incorrect power connection. Faulty power supply.	Ensure power source is active. Check power cable connections to the terminal block and ensure correct polarity. Test with a different power supply if available.
No Link (Network LED Off)	Loose or faulty Ethernet cable. Connected device is off or faulty. Incorrect port on connected device.	Check and re-seat Ethernet cables. Try a different cable. Ensure the connected device is powered on and functioning. Verify the Ethernet port on the connected device is active.
Slow Network Speed	Cable quality issues. Network congestion. Connected device operating at lower speed.	Use high-quality Cat5e or Cat6 Ethernet cables. Reduce traffic on the network if possible. Check the speed settings on the connected device.

9. User Tips

Industrial Environment: Given its robust design and wide operating temperature, this switch is ideal for harsh industrial settings. Ensure proper ventilation to maximize its lifespan.
Power Redundancy: For critical applications, consider using a redundant power supply setup, although the switch has built-in reverse polarity and overload protection.
Cable Management: Organize your Ethernet cables neatly to prevent accidental disconnections and improve airflow around the device.

10. Warranty and Support

UOTEK products are designed for reliability and performance. For warranty information and technical support, please refer to the official UOTEK website or contact your local distributor.

Certifications: The UT-6405CA complies with CE, FCC, and RoHS standards, ensuring its quality and safety for industrial use.

Collection of UTEK product certifications including ISO, CE, FCC, and RoHS. — Figure 5: UTEK Product Certifications

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UOTEK UT-6405CA