1. はじめに
1.1 製品終了view
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 主な特徴
- 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.
- 入力ボリュームtage：56VDC。
- Equipped with 6 RP-TNC connectors for external antennas (FCC configuration).
2. 安全情報
2.1一般的な安全上の注意
- すべての指示をお読みください: Before installation and operation, carefully read and understand all safety instructions.
- 電源: Use only the specified power source (56 VDC) for this device. Ensure the power adapter is properly grounded.
- 換気： 通気口を塞がないでください。過熱を防ぐため、デバイス周囲に十分な空気の流れを確保してください。
- 位置： Install the device in a stable location, away from direct sunlight, heat sources, and moisture. Avoid placing it near strong electromagnetic fields.
- サービス: この製品を自分で修理しようとしないでください。 すべてのサービスを資格のあるサービス担当者に依頼してください。
- アンテナ： Ensure all antennas are securely connected before powering on the device.
3. パッケージ内容
パッケージに以下の品目が含まれていることを確認してください。不足品や破損品がある場合は、販売店にお問い合わせください。
- Cisco Aironet 1252 Lightweight Access Point (AIR-LAP1252AG-A-K9)
- 電源アダプター（特定のモデルに付属している場合）
- 取り付けブラケットキット
- ドキュメント（クイックスタートガイド、安全情報）
- External Antennas (quantity and type may vary based on configuration)
4. セットアップ
4.1物理的な設置
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 電源とネットワークの接続
- アンテナを接続します。 Screw the external antennas onto the RP-TNC connectors on the access point. Ensure they are finger-tight.
- イーサネットに接続: 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.
- 電源オン: 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初期構成
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. 操作
5.1 LEDインジケータの理解
The access point features LED indicators that provide visual feedback on its operational status:
- ステータス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.
- ラジオLED： Indicate activity on the 2.4 GHz and 5 GHz radios.
5.2 ワイヤレスネットワークの構成
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. メンテナンス
6.1 クリーニング
To maintain optimal performance and extend the lifespan of your access point:
- 電源を切る： 掃除する前に必ず電源を切ってください。
- 外観： Use a soft, dry, lint-free cloth to wipe the exterior surfaces. Do not use liquid cleaners, aerosols, or solvents.
- 換気： Periodically check ventilation openings for dust accumulation and gently clear them using compressed air if necessary.
6.2ファームウェアアップデート
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。 トラブルシューティング
このセクションでは、発生する可能性のある一般的な問題に対する解決策を示します。
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| 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. |
| ワイヤレスパフォーマンスが悪い。 | 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. 仕様
Technical specifications for the Cisco Aironet 1252 Lightweight Access Point:
| 特徴 | 詳細 |
|---|---|
| モデル番号 | AIR-LAP1252AG-A-K9 |
| ワイヤレスタイプ | 802.11a/g, 802.11n (Draft 2.0) |
| 周波数帯域 | 2.4GHz、5GHz |
| ラム | 64MB |
| フラッシュメモリサイズ | 32MB |
| 入力ボリュームtage | 56VDC |
| 電流消費量 | 550mA |
| アンテナコネクタ | 6 x RP-TNC (FCC Configuration) |
| 製品寸法（長さx幅x高さ） | 9.52 x 8.12 x 2.35インチ |
| アイテム重量 | 5.09ポンド |
| メーカー | シスコ |
| ASIN | B00113U2PS |
9. 保証とサポート
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.