Before you physically install a Catalyst switch, you must have the correct power and operating environment. When you have correctly connected the power cable, the switch will turn on if there is no on/off power button, which is the case on the Catalyst switch shown in the figure.
在實體安裝 Catalyst 交換器之前，必須具備正確的電源與運作環境。當你正確接上電源線後，若交換器沒有電源開關（如圖中所示的 Catalyst 交換器），它就會自動開機。
Physical installation and startup of a Catalyst switch require completion of these steps:
Catalyst 交換器的實體安裝與啟動須完成以下步驟：
- Before performing physical installation, verify the following:在進行實體安裝前，請確認以下事項：
- Switch power requirements交換器電源需求
- Switch operating environment requirements (operational temperature and humidity)交換器運作環境需求（操作溫度與濕度）
- Use the appropriate installation procedures for rack mounting, wall mounting, or table or shelf mounting.依機架安裝、壁掛安裝或桌面／層架安裝，使用適當的安裝程序。
- Before starting the switch, verify the network cables that provide connectivity to end devices to the LAN.在啟動交換器之前，確認提供終端裝置與 LAN 連線的網路線纜是否正確。
- Attach the power cable plug to the power supply socket of the switch. The switch will start. Some Catalyst switches do not have power buttons.將電源線插頭接上交換器的電源插座，交換器即會啟動。部分 Catalyst 交換器沒有電源開關。
- Observe the boot sequence:觀察開機順序：
- When the switch is on, the power on self-test (POST) begins. During POST, the switch LED indicators blink while a series of tests determines that the switch is functioning properly.交換器開機時，開機自我測試（POST）隨即開始。在 POST 期間，交換器 LED 指示燈會閃爍，並執行一系列測試以確認交換器運作正常。
- The Cisco IOS Software output text is displayed on the console.Cisco IOS 軟體的輸出文字會顯示在主控台上。
When all startup procedures are finished, the switch is ready to configure.
所有啟動程序完成後，交換器即可進行設定。
What is the correct sequence of tasks for the physical installation and startup of a Catalyst switch?Catalyst 交換器實體安裝與啟動的正確任務順序為何？
| Verify the power and cooling requirements.確認電源與散熱需求。 | 55 |
| Physically install the switch.實體安裝交換器。 | 33 |
| Verify the network cabling確認網路線纜 | 22 |
| Attach the power cable plug to start the switch接上電源線插頭以啟動交換器 | 11 |
| System startup routines perform POST and initiate the switch software.系統啟動流程執行 POST 並啟動交換器軟體。 | 44 |