BUFFALO Giga Switching Hub 24-Port LSW3-GT-24NSR User Manual

1. Introduktion

The BUFFALO Giga Switching Hub LSW3-GT-24NSR is a 24-port Gigabit Ethernet switch designed for high-speed network environments. It is ideal for small to medium-sized offices and workplaces requiring robust and reliable network connectivity. This device supports full Gigabit speeds across all ports, ensuring efficient data transfer.

Key features include a fanless design for silent operation and enhanced reliability, as well as a loop detection function to prevent network disruptions caused by accidental network loops.

2. Sikkerhedsoplysninger

Please read and understand the following safety precautions before using the device to prevent injury or damage.

• Strømforsyning: Use only the provided power adapter. Ensure the power outlet meets the specified voltage krav.
• Ventilation: Bloker ikke ventilationsåbningerne. Sørg for tilstrækkelig luftgennemstrømning omkring enheden for at forhindre overophedning.
• Miljø: Avoid exposing the device to water, high humidity, extreme temperatures, or direct sunlight.
• Håndtering: Do not drop or subject the device to strong impacts. Do not attempt to open or repair the device yourself. Refer all servicing to qualified personnel.
• Kabler: Ensure all network cables are properly connected and secured.

3. Pakkens indhold

Bekræft at alle varer er til stede i pakken:

• BUFFALO Giga Switching Hub LSW3-GT-24NSR Unit
• Strømkabel
• Rack Mount Brackets (if included with your model)
• Gummifødder (til placering på skrivebordet)

4. Opsætning

4.1 Fysisk installation

The LSW3-GT-24NSR can be installed on a desktop or mounted in a 19-inch equipment rack.

Desktopplacering:

1. Attach the included rubber feet to the bottom of the unit to prevent slipping and provide stability.
2. Place the unit on a flat, stable surface with adequate ventilation.

Rack montering:

1. Attach the rack mount brackets to the sides of the unit using the provided screws.
2. Secure the unit into a standard 19-inch equipment rack using appropriate rack screws (not included).

4.2 Tilslutning af netværkskabler

Connect your network devices (computers, servers, other switches) to any of the 24 RJ-45 ports on the front panel using standard Ethernet cables (Category 5e or higher recommended for Gigabit speeds).

Figur 1: Frontpanel overview with 24 Ethernet Ports and Status LEDs.

4.3 Tilslutning af strøm

1. Connect the power cable to the AC IN port on the rear of the device.
2. Sæt den anden ende af strømkablet i en passende stikkontakt.
3. The device will power on automatically. The POWER LED on the front panel should illuminate.

Figur 2: Bagpanel overview with AC IN Power Port.

5. Betjeningsvejledning

5.1 LED-indikatorer

The front panel features several LED indicators to monitor the status of the switch and its ports.

Figur 3: Detaljeret view of LED Indicators and Loop Detection Switch.

5.2 Loopdetektionsfunktion

The LSW3-GT-24NSR features a hardware switch for enabling or disabling the loop detection function. This function helps prevent network instability caused by accidental network loops.

Figure 4: Loop Detection Switch (ON/OFF).

• PÅ: Loop detection is active. If a loop is detected, the corresponding port will be automatically shut down to prevent network broadcast storms, and the LOOP DETECT LED will illuminate.
• OFF: Loop detection is disabled.

It is recommended to keep the loop detection function ON for network stability.

6. Vedligeholdelse

6.1 Rengøring af enheden

For at opretholde optimal ydeevne skal du regelmæssigt rengøre kontaktens yderside.

• Frakobl strømkablet før rengøring.
• Brug en blød, tør klud til at tørre overfladen af.
• Do not use liquid cleaners, aerosols, or solvents, as these may damage the casing eller interne komponenter.

6.2 Miljøhensyn

Ensure the device is operated within its specified environmental conditions:

• Temperatur: 0°C til 40°C (32°F til 104°F)
• Fugtighed: 10 % til 85 % (ikke-kondenserende)

7. Fejlfinding

If you encounter issues with your BUFFALO Giga Switching Hub, refer to the following common problems and solutions.

7.1 Ingen strøm

• Symptom: POWER-LED'en er slukket.
• Løsning: Check if the power cable is securely connected to both the device and the power outlet. Ensure the power outlet is functional.

7.2 No Link or Slow Speed on a Port

• Symptom: The LINK/ACT LED for a connected port is off, or the 1000/100/10M LED indicates a lower speed than expected (e.g., 100M instead of 1000M).
• Løsning:
  • Kontroller, at Ethernet-kablet er korrekt tilsluttet i begge ender.
  • Try a different Ethernet cable. Ensure it is a Category 5e or higher cable for Gigabit speeds.
  • Tilslut enheden til en anden port på switchen.
  • Check the network adapter settings on the connected device (computer, server) to ensure it is configured for auto-negotiation or the correct speed.

7.3 Network Instability / LOOP DETECT LED is On

• Symptom: The LOOP DETECT LED is illuminated, and network performance is degraded or unstable.
• Løsning:
  • A network loop has been detected. This typically occurs when two ports on the same switch (or different switches) are connected to each other, creating an infinite data path.
  • Carefully inspect your network cabling to identify and remove any redundant connections that form a loop.
  • If the loop detection switch is ON, the affected port will be automatically shut down. Once the loop is resolved, the port should resume normal operation.

8. Specifikationer

9. Garanti og support

This BUFFALO product is covered by a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official BUFFALO webhjemmeside for detaljerede garantivilkår.

For technical support, product registration, or further assistance, please visit the official BUFFALO support webwebstedet eller kontakt deres kundeserviceafdeling. Kontaktoplysninger kan typisk findes på producentens webwebsted eller i produktemballagen.