1. Einleitung
1.1 Produktüberschussview
The Cisco Aironet 1252 Lightweight Access Point is a modular, unified wireless access point designed for robust 802.11a/g/n wireless network deployments. It operates in both 2.4 GHz and 5 GHz frequency bands, supporting Draft 2.0 of the 802.11n standard. This device functions as part of a larger Cisco Unified Wireless Network, managed by a wireless LAN controller.
1.2 Hauptmerkmale
- Supports 802.11a/g/n (Draft 2.0) wireless standards.
- Operates on 2.4 GHz and 5 GHz frequencies.
- Modular design for flexible configurations.
- Lightweight Access Point Protocol (LWAPP) for centralized management.
- Eingangsvolumentage: 56 VDC.
- Equipped with 6 RP-TNC connectors for external antennas (FCC configuration).
2. Sicherheitshinweise
2.1 Allgemeine Sicherheitsvorkehrungen
- Lies alle Anweisungen: Before installation and operation, carefully read and understand all safety instructions.
- Energiequelle: Use only the specified power source (56 VDC) for this device. Ensure the power adapter is properly grounded.
- Belüftung: Blockieren Sie keine Lüftungsöffnungen. Sorgen Sie für ausreichende Luftzirkulation um das Gerät herum, um eine Überhitzung zu vermeiden.
- Standort: Install the device in a stable location, away from direct sunlight, heat sources, and moisture. Avoid placing it near strong electromagnetic fields.
- Wartung: Versuchen Sie nicht, dieses Produkt selbst zu warten. Überlassen Sie alle Wartungsarbeiten qualifiziertem Servicepersonal.
- Antennen: Ensure all antennas are securely connected before powering on the device.
3. Packungsinhalt
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- Cisco Aironet 1252 Lightweight Access Point (AIR-LAP1252AG-A-K9)
- Netzteil (falls im Lieferumfang Ihrer Modellvariante enthalten)
- Montagehalterungssatz
- Dokumentation (Schnellstartanleitung, Sicherheitshinweise)
- External Antennas (quantity and type may vary based on configuration)
4. Einrichtung
4.1 Physische Installation
The Cisco Aironet 1252 Access Point can be mounted on a wall or ceiling. Ensure the chosen location provides optimal wireless coverage and is within reach of power and network connections.

An image showing the Cisco Aironet 1252 Lightweight Access Point, typically mounted or ready for installation. This illustrates the physical appearance of the device.
4.2 Strom- und Netzwerkanschluss
- Antennen anbringen: Screw the external antennas onto the RP-TNC connectors on the access point. Ensure they are finger-tight.
- Ethernet anschließen: Connect an Ethernet cable from your network switch (preferably a Power over Ethernet (PoE) enabled switch) to the Ethernet port on the access point. If PoE is not used, connect the power adapter to the access point's power input and then to an electrical outlet.
- Einschalten: Once the network and power connections are secure, the access point will power on automatically. Observe the LED indicators for boot-up status.
4.3 Erstkonfiguration
As a Lightweight Access Point, the AIR-LAP1252AG-A-K9 requires a Cisco Wireless LAN Controller (WLC) for full operation and configuration. Upon boot-up, the access point will attempt to discover and join a WLC on the network. Refer to your WLC documentation for specific configuration steps, including:
- WLC discovery methods (DHCP, DNS, broadcast).
- Assigning the access point to a specific WLC.
- Configuring SSIDs, security settings, and radio parameters.
5. Bedienung
5.1 LED-Anzeigen verstehen
The access point features LED indicators that provide visual feedback on its operational status:
- Status-LED: Indicates the overall operational state (e.g., booting, associated with WLC, transmitting data). Refer to the official Cisco documentation for detailed LED patterns and their meanings.
- Funk-LEDs: Indicate activity on the 2.4 GHz and 5 GHz radios.
5.2 Konfiguration des drahtlosen Netzwerks
All wireless network configurations, including SSID broadcasting, security protocols (WPA2/WPA3), VLAN tagging, and radio power settings, are managed centrally through the Cisco Wireless LAN Controller. Once the access point has joined the WLC, it will download its configuration and begin broadcasting the configured wireless networks.
6. Wartung
6.1 Reinigung
To maintain optimal performance and extend the lifespan of your access point:
- Ausschalten: Trennen Sie vor der Reinigung immer die Stromversorgung.
- Exterieur: Use a soft, dry, lint-free cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or solvents.
- Belüftung: Periodically check ventilation openings for dust accumulation and gently clear them using compressed air if necessary.
6.2 Firmware-Updates
Firmware updates for the access point are managed and pushed by the Cisco Wireless LAN Controller. Ensure your WLC is running the latest recommended software version to provide the most stable and secure environment for your access points. Consult Cisco's official documentation for WLC firmware upgrade procedures.
7. Fehlerbehebung
Dieser Abschnitt bietet Lösungen für häufig auftretende Probleme.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Access Point not powering on. | No power, faulty power adapter/PoE switch, or cable issue. | Verify power connections. Ensure PoE switch port is active or power adapter is functional. Try a different Ethernet cable. |
| Status LED not indicating normal operation (e.g., continuously blinking or off). | Not connected to WLC, WLC not reachable, or IP address conflict. | Ensure network connectivity to the WLC. Check WLC configuration for AP discovery. Verify no IP address conflicts on the network. |
| Clients cannot connect to the wireless network. | Incorrect SSID/password, WLC configuration error, or radio disabled. | Verify SSID and password on client devices. Check WLC for correct WLAN configuration, ensure radios are enabled and broadcasting. |
| Poor wireless performance. | Interference, improper antenna placement, or outdated firmware. | Check for sources of interference. Adjust antenna orientation. Ensure WLC and AP firmware are up to date. Consider a site survey for optimal AP placement. |
8. Spezifikationen
Technical specifications for the Cisco Aironet 1252 Lightweight Access Point:
| Besonderheit | Detail |
|---|---|
| Modellnummer | AIR-LAP1252AG-A-K9 |
| Kabelloser Typ | 802.11a/g, 802.11n (Draft 2.0) |
| Frequenzbänder | 2.4 GHz, 5 GHz |
| RAM | 64 MB |
| Flash-Speichergröße | 32 MB |
| Eingangslautstärketage | 56 V Gleichstrom |
| Aktueller Verbrauch | 550 mA |
| Antennenanschlüsse | 6 x RP-TNC (FCC Configuration) |
| Produktabmessungen (L x B x H) | 9.52 x 8.12 x 2.35 Zoll |
| Artikelgewicht | 5.09 Pfund |
| Hersteller | CISCO |
| ASIN | B00113U2PS |
9. Garantie und Support
For information regarding product warranty, technical support, and additional resources, please refer to the official Cisco website or contact your authorized Cisco reseller. Specific warranty terms and support options may vary based on your region and purchase agreement.
Online resources and documentation can typically be found at www.cisco.com.





