Manual Pengguna Suis Ethernet Juniper Networks EX2300-48T

1. Pengenalan

This manual provides comprehensive instructions for the installation, operation, and maintenance of the Juniper Networks EX2300-48T Ethernet Switch. The EX2300-48T is a high-performance, compact, and cost-effective solution designed for access-layer deployments in various network environments, including micro branches, retail, workgroup settings, and converged network access in larger infrastructures.

The EX2300-48T features 48 10/100/1000BASE-T ports, offering robust connectivity and efficient data transfer capabilities within a 1U form factor.

2. Maklumat Keselamatan Penting

Baca semua arahan dengan teliti sebelum mengendalikan peranti.

• Pastikan sumber kuasa sepadan dengan voltagkeperluan yang dinyatakan pada label peranti.
• Do not operate the device in environments with excessive heat, humidity, or dust.
• Sentiasa putuskan sambungan kuasa sebelum membersihkan atau melakukan penyelenggaraan.
• Only use accessories and attachments specified by the manufacturer.
• Properly ground the device to prevent electrical shock.
• Do not block ventilation openings. Ensure adequate airflow around the switch.

3. Kandungan Pakej

Verify that all items are present in the package. If any items are missing or damaged, contact your vendor immediately.

• Juniper Networks EX2300-48T Ethernet Switch Unit
• Kord Kuasa AC
• Rack-Mount Kit (brackets and screws)
• Kabel Konsol (RJ-45 hingga DB-9)
• Dokumentasi (Panduan Mula Pantas, Maklumat Keselamatan)

4. Fizikal Overview

4.1 Panel Depan

The front panel of the EX2300-48T switch features the Ethernet ports, uplink ports, and status LEDs.

Rajah 4.1: Depan view of the Juniper Networks EX2300-48T Ethernet Switch, showing 48 RJ-45 ports and uplink ports on the right.

Figure 4.2: Another perspective of the EX2300-48T front panel, highlighting the port layout and ventilation.

• 48 x 10/100/1000BASE-T Port: RJ-45 connectors for connecting network devices.
• Pelabuhan Uplink: Typically SFP/SFP+ ports for high-speed connections to the core network or other switches.
• LED status: Indicators for system status, power, port activity, and link speed. Refer to the LED status guide in the operating section for detailed explanations.

4.2 Panel Belakang

The rear panel includes the power input, console port, and grounding point.

• Masuk Kuasa AC: Connector for the AC power cord.
• Port Konsol (RJ-45): Used for out-of-band management and initial configuration via a serial connection.
• Titik Pembumian: For connecting a grounding cable to ensure electrical safety.

5. Persediaan dan Pemasangan

5.1 Penyediaan Tapak

• Pastikan tapak pemasangan bersih, kering dan berventilasi baik.
• Kekalkan suhu ambien antara 0°C dan 45°C (32°F dan 113°F).
• Ensure proper grounding is available at the installation site.

5.2 Pemasangan Rak

1. Pasangkan kurungan pemasangan rak yang disediakan pada sisi suis menggunakan skru yang disertakan.
2. Align the switch with the rack posts and secure it using appropriate rack screws. Ensure the switch is level and stable.

5.3 Sambungan Kuasa

1. Sambungkan kord kuasa AC ke salur masuk kuasa pada panel belakang suis.
2. Palamkan hujung kord kuasa yang lain ke dalam salur keluar elektrik yang dibumikan.
3. The power LED on the front panel should illuminate, indicating the switch is receiving power.

5.4 Sambungan Rangkaian

1. Connect Ethernet cables from your network devices (computers, servers, other switches) to the 10/100/1000BASE-T ports on the front panel.
2. For uplink connections to your core network, insert SFP/SFP+ transceivers (if applicable) into the uplink ports and connect appropriate fiber or copper cables.
3. Observe the port status LEDs to confirm link establishment and activity.

5.5 Initial Configuration (Console Access)

1. Connect the console cable (RJ-45 to DB-9) from the switch's console port to a serial port on a computer.
2. Configure your terminal emulation software (e.g., PuTTY, Tera Term) with the following settings:
   • Kadar Baud: 9600
   • Bit Data: 8
   • Pariti: Tiada
   • Hentikan Bit: 1
   • Kawalan Aliran: Tiada
3. Power on the switch. You should see boot messages in the terminal window.
4. Follow the on-screen prompts to perform initial configuration, including setting up management IP addresses and basic network parameters.

6. Mengendalikan Suis

6.1 Hidupkan/Mati Kuasa

To power on the switch, connect the power cord to a live electrical outlet. To power off, disconnect the power cord. It is recommended to gracefully shut down the switch via the command-line interface (CLI) if possible before disconnecting power to prevent data corruption or configuration loss.

6.2 Penunjuk LED

LED panel hadapan memberikan status visual operasi suis:

• LED SYS: Indicates system status (e.g., green for normal operation, amber for fault).
• LED PWR: Indicates power status (e.g., green for power on).
• LED Port: Each port has LEDs indicating link status (on/off) and activity (blinking). Refer to the Juniper Networks documentation for specific LED behavior.

6.3 Pengurusan Asas

After initial configuration, the switch can be managed via the CLI (Command Line Interface) through the console port, Telnet, or SSH. A web-based graphical user interface (GUI) may also be available depending on the Junos OS version. Refer to the Juniper Networks Junos OS documentation for detailed management instructions.

7. Penyelenggaraan

7.1 Pembersihan

• Bersihkan bahagian luar suis secara berkala dengan kain lembut dan kering.
• Ensure ventilation openings are free from dust and obstructions. Use compressed air to gently clear dust from vents if necessary.
• Jangan gunakan pembersih cecair atau aerosol terus pada suis.

7.2 Kemas Kini Perisian Tegar

Semak sokongan Juniper Networks secara berkala website for firmware updates. Keeping the switch's Junos OS up-to-date ensures optimal performance, security, and access to new features. Follow the instructions provided by Juniper Networks for performing firmware upgrades.

8. Penyelesaian masalah

8.1 Tiada Kuasa

• Verify the power cord is securely connected to both the switch and a live electrical outlet.
• Periksa soket kuasa dengan peranti lain untuk memastikan ia berfungsi.
• Ensure the power supply unit (if external) is properly connected and functional.

8.2 Tiada Pautan pada Port

• Periksa sambungan kabel Ethernet di kedua-dua hujungnya. Cuba kabel yang lain.
• Sahkan peranti yang disambungkan dihidupkan dan berfungsi dengan betul.
• Ensure the port on the connected device is enabled and configured correctly.
• Check the port configuration on the switch via CLI to ensure it is enabled and configured for the correct speed/duplex.

8.3 Isu Ketersambungan Rangkaian

• Verify IP address, subnet mask, and gateway settings on connected devices.
• Check the switch's IP configuration and routing tables.
• Ensure there are no conflicting IP addresses on the network.
• Consult the Juniper Networks Junos OS documentation for advanced troubleshooting steps.

9. Spesifikasi

10. Waranti dan Sokongan

10.1 Waranti Produk

Juniper Networks products typically come with a standard limited hardware warranty. The exact terms and duration of the warranty may vary by region and purchase agreement. Please refer to the official Juniper Networks website or your purchase documentation for detailed warranty information specific to your EX2300-48T switch.

10.2 Sokongan Teknikal

For technical assistance, troubleshooting beyond this manual, or to report issues, please contact Juniper Networks Technical Assistance Center (JTAC). You can find contact information and support resources on the official Juniper Networks support webtapak:

Visit Juniper Networks Support

Before contacting support, have your product model (EX2300-48T) and serial number ready.