Digital Equipment Corporation Storage Works Guida Utente Pagina 40
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- Indice
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Power
4.4 Battery Backup Units
4.4 Battery Backup Units
The LEDs on the BBU (see Figure 4–2) display the status of the BBU. These
LEDs are controlled by internal BBU signals. The status LED has three states:
on, off, and flashing. The charge status LED has two states: on or off. The valid
states of these LEDs are listed in Table 2–5
• The upper LED (green) is the BBU status LED.
• The lower LED (amber) is the charge status LED.
Figure 4–2 BBU LEDs
CHARGE
STATUS
(AMBER)
BBU STATUS
(GREEN)
CXO-3670A-PH
4–4 Power
- StorageWorksFamily 1
- User’sGuide 1
- Contents 3
- Intended Audience 7
- Documentation Conventions 7
- Structure 8
- Related Documents 8
- † Provided with each system 10
- Manufacturer’s Declarations 11
- Acoustic Noise Declaration 12
- February 1, 1993 13
- Introduction 15
- 1.2 SBB Shelf Description 16
- StorageWorks Status Reporting 19
- 2.1 Shelf Status 20
- 2.3 Storage SBB Status 28
- 2.4 BBU Status 30
- CXO-3611B-PH 33
- 3.2 Replacing a Blower 34
- 3.3.1 Removing a Shelf 36
- 3.3.2 Installing a Shelf 36
- Power 4–1 37
- 4.2 Power Specifications 38
- 4.4 Battery Backup Units 40
- 4.5 Power Supply Replacement 41
- 4.6 Power Cords and Cables 42
- StorageWorks SCSI Buses 43
- SCSI Bus Signal Converters 53
- 6.1 DWZZA Description 54
- 6.3 SCSI Cables 57
- 6.4 Terminating SCSI Buses 58
- A.1 Input Power Requirements 63
- A.2 Power Units 63
- A.3 Physical Specifications 64
- Glossary 67
- Glossary–2 68
- Glossary–3 69
- Glossary–4 70
- Glossary–5 71
Qtech Telefony uživatelské příručky
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