1. はじめに
The JMT RJ45 Ethernet Extender is designed to extend the length of your Ethernet network cables by connecting two shorter cables. This device provides a reliable and stable connection, ensuring no loss of signal quality or speed over the extended distance. It is compatible with various Ethernet cable categories, including CAT5E, CAT6, and CAT8.

Image 1: JMT RJ45 Ethernet Extender. This image shows an isometric view of the black RJ45 extender, highlighting its compact design and the RJ45 port on one end.
2. パッケージ内容
下記のすべての品目がパッケージに含まれていることをご確認ください。不足品や破損品がある場合は、カスタマーサポートまでご連絡ください。
- 1 x JMT RJ45 Ethernet Extender (Model N47397)
3. セットアップ手順
The JMT RJ45 Ethernet Extender is designed for simple plug-and-play operation, requiring no software installation or complex configuration.
- Identify your Ethernet cables: Ensure you have two standard RJ45 Ethernet cables that you wish to connect.
- Connect the first cable: Insert the RJ45 connector of your first Ethernet cable into one end of the JMT RJ45 Extender until it clicks securely into place.
- Connect the second cable: Insert the RJ45 connector of your second Ethernet cable into the other end of the JMT RJ45 Extender until it clicks securely into place.
- 接続を確認します: Once both cables are connected, your extended network connection should be active. No additional power or drivers are required.

Image 2: JMT RJ45 Extender in use, connecting an Ethernet cable to a device near a television. This illustrates a typical application where the extender is used to reach a distant device.

Image 3: JMT RJ45 Extender connecting two Ethernet cables, one leading to a laptop. This image demonstrates the extender's use in a home office or desktop setup.
4. 操作手順
Once properly connected, the JMT RJ45 Ethernet Extender operates automatically. It facilitates the seamless transmission of data between your connected devices.
- Lossless Internet Speed: The extender features a built-in metal shielding layer designed to prevent external electromagnetic interference, ensuring no loss of signal quality or internet speed.
- 高速データ転送: Supports high-speed data transfer without delay, allowing for efficient network performance.
- 延長伝送: The transmission distance for the extended Ethernet connection can be up to 100 meters, depending on the quality of the connected cables and network environment.
- 幅広い互換性: This RJ45 extender is compatible with various network cable standards, including CAT5E, CAT6, and CAT8 Ethernet LAN cables.
5. メンテナンス
The JMT RJ45 Ethernet Extender requires minimal maintenance.
- クリーニング: If necessary, gently wipe the exterior of the extender with a dry, soft cloth. Avoid using liquid cleaners or abrasive materials.
- ストレージ: Store the extender in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- 取り扱い: Avoid dropping the device or subjecting it to strong impacts, as this may damage the internal components or the RJ45 ports.

画像4: クローズアップ view of the JMT RJ45 Extender's aluminum alloy casing. This image highlights the durable material used in its construction.
6。 トラブルシューティング
If you encounter issues with your JMT RJ45 Ethernet Extender, please refer to the following common troubleshooting steps:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| No network connection after connecting extender. |
|
|
| ネットワーク速度が遅い。 |
|
|
| 接続が断続的です。 |
|
|
7. 仕様
| 特徴 | 詳細 |
|---|---|
| モデル番号 | 47397円 |
| ブランド | JMT |
| タイプ | RJ45 Ethernet Extender / Coupler |
| コネクタタイプ | RJ45 Female to RJ45 Female |
| 互換性 | CAT5E, CAT6, CAT8 Ethernet LAN cables |
| 材料 | アルミニウム合金 |
| 色 | 黒 |
| データリンクプロトコル | イーサネット |
| データ転送速度 | Up to 100 Megabits Per Second (dependent on connected cables and network) |
| 伝送距離 | 最大100メートル(約328フィート) |
| 寸法(概算) | 37.0mm (長さ) x 23.7mm (幅) x 22.0mm (高さ) |

Image 5: Diagram showing the approximate dimensions of the JMT RJ45 Extender in millimeters.
8. 保証とサポート
保証情報: Specific warranty details for the JMT RJ45 Ethernet Extender are typically provided at the point of purchase or can be found on the official JMT webサイトでご確認ください。保証請求のために購入証明書を保管してください。
カスタマーサポート: For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact JMT customer support through their official channels. You may also visit the JMT Store on Amazon 詳細についてはこちらをご覧ください。