Einführung
The Gustard N18 PRO is a high-fidelity audio network switch designed to optimize audio streaming performance. It features multiple Ethernet ports, an SFP optical fiber input, and support for an external 10MHz clock, all integrated with advanced power supply and isolation technologies to ensure a clean audio signal. This manual provides essential information for the proper setup, operation, and maintenance of your N18 PRO.
Sicherheitshinweise
- Stellen Sie sicher, dass das Gerät an eine Stromquelle mit der korrekten Spannung angeschlossen ist.tage wie auf dem Gerät angegeben.
- Setzen Sie das Gerät weder Feuchtigkeit, Regen noch extremen Temperaturen aus.
- Vermeiden Sie, das Gerät in der Nähe von Wärmequellen oder in direktem Sonnenlicht aufzustellen.
- Öffnen Sie nicht das casing; alle Wartungsarbeiten sind qualifiziertem Personal zu überlassen.
- Disconnect power before cleaning or making any connections.
Aufstellen
Packungsinhalt
Überprüfen Sie, ob alle Artikel im Paket vorhanden sind:
- Gustard N18 PRO Network Switch
- Stromkabel
Physikalische Verbindungen
Siehe das untenstehende Diagramm für eine Übersicht.view der Anschlüsse auf der Rückseite.

Figure 1: Rear panel of the Gustard N18 PRO, showing Ethernet ports, SFP port, Clock In, Clock selection, Voltage selection, AC power input, and Fuse.
- Stromanschluss: Connect the provided power cable to the AC power input on the rear panel and then to a suitable wall outlet. Ensure the voltage selection switch is set correctly for your region (115V/230V).
- Ethernet-Verbindungen: The N18 PRO features 5 Gigabit Ethernet ports (LAN1-LAN5) and 1 SFP port. Connect your network devices (e.g., router, NAS, PC, audio streamers) to these ports using standard Ethernet cables.
- SFP-Port: For enhanced optical isolation, insert a compatible SFP fiber module into the SFP port. It is recommended to use Gustard's optical modules for optimal performance. Connect an LC-LC fiber cable from the SFP module to your network.
- 10-MHz-Takteingang: For improved audio clarity and analog warmth, connect an external 10MHz clock source to the BNC 10MHz Clock In port. Use the adjacent switch to select between internal (INT) and external (EXT) clock sources.
Konnektivitätsoptionen
The N18 PRO offers flexible integration into your audio network. Below are examples of typical setups.

Abbildung 2: Bspample connectivity diagram for N18 PRO, showing connections to a router, NAS, PC, and various audio devices.

Figure 3: Illustration of optical isolation using an SFP module and LC-LC fiber cable with the N18 PRO.
Bedienungsanleitung
Ein-/Ausschalten
After all connections are made, flip the power switch on the rear panel to the 'ON' position. The device will power on and begin network operations.
Netzwerkbetrieb
The N18 PRO functions as a network switch, facilitating data transfer between connected devices. Its primary role is to provide a clean and stable network environment for audio streaming by minimizing interference and noise.
- Ethernet-Ports: The 10/100/1000M adaptive Ethernet interfaces automatically detect and adjust to the speed of the connected device.
- Optoelectronic Isolation: When using the SFP fiber module, the network ripple is effectively isolated, contributing to a cleaner audio signal.
- Externe Uhr: If an external 10MHz clock is connected and selected, it will synchronize the device, enhancing audio clarity and reducing jitter.
Wartung
Reinigung
To clean the exterior of the device, use a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the finish or internal components.
Firmware-Aktualisierungen
Periodically check the official Gustard website for any available firmware updates. Follow the instructions provided with the update package carefully to ensure proper installation.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Strom | Power cable not connected; Power switch off; Blown fuse; Incorrect voltage Auswahl. | Ensure power cable is securely connected. Turn power switch ON. Check and replace fuse if necessary. Verify voltagDer Wahlschalter ist richtig eingestellt. |
| Keine Netzwerkaktivität | Ethernet cables loose or faulty; Connected device is off or misconfigured. | Check all Ethernet cable connections. Ensure connected devices are powered on and configured correctly. Try different Ethernet cables. |
| Schlechte Audioqualität | Network interference; External clock not properly connected or selected. | Ensure SFP module is used for optical isolation if possible. Verify external 10MHz clock is connected and the 'EXT' option is selected. Check for other sources of electrical interference. |
Technische Daten

Figure 4: Gustard N18 PRO specifications and dimensions.
- Ethernet-Schnittstelle: 1*SFP, 5*10/100/1000M adaptive Ethernet interfaces
- SFP: Supports GPON/EPON fiber modem, SFP RJ45 extension port, SFP fiber module
- Ethernet-Protokoll: 10Base-T, 100Base-T, 1000Base-T, 100Base-X, 1000Base-X
- 10M BNC Input: Input impedance 50 Ohm, 0dBm - 20dBm
- Wechselstromversorgung: 115 V/230 V 50/60 Hz
- Energieverbrauch: <10 W
- Dimensions (excluding protruding parts): W220mm*H50mm*D170mm
- Packungsgröße: W285mm*H85mm*D270mm
- Gewicht inklusive Verpackung: 2.5 kg
Garantieinformationen
The Gustard N18 PRO comes with a warranty period of 1 year or more from the date of purchase, depending on the specific product and regional regulations. Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper installation.
Unterstützung
For technical assistance, troubleshooting, or any inquiries regarding your Gustard N18 PRO, please contact our customer support. We offer 24-hour online service to assist you. Refer to the official Gustard webAuf dieser Webseite finden Sie Kontaktdaten und weitere Ressourcen.





