Справочник Пользователя для Sun Microsystems SL8500

Power

18 StreamLine™ SL8500 Modular Library System User's Guide • March 2007

Revision K • 96154

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The two AC power grids distribute 220 VAC to the different Load Sharing Power 

Supplies, Electronics Control Module (ECM), and accessory racks. 

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The three DC power grids supply 48 VDC to the tape drives, robots, and front frame 

components. 

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The Drive Power Grid supports up to 64 tape drives (with the proper number of 

Load Sharing Power Supplies). A single tape drive power supply provides power 

for up to 8 tape drives, so at least 8 power supplies are required for 64 tape drives 

(in an N+1 configuration).

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The Robot and Pass-thru Port (PTP) Power Grid supplies power to the robots and 

the four pass-thru ports (PTP). A single power supply can power up to four 

robots, so two power supplies are required for eight robots. 

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The Front Frame Power Grid is powered by a single Load Sharing Power Supply 

that supplies 48 VDC power to the two Cartridge Access Ports if present, one 

Turntable, two Elevators, and the Service Safety Door. 

The power supply for the Front Frame Power Grid is in the Customer Interface 

Module. All the other Load Sharing Power Supplies are located in the Drive and 

Electronics Module.

Power Consumption

Power consumption for the library is as follows:

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Single phase configurations 

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24 Amps per phase (minimum) – 13.0kW, 44,382 Btu/hr

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768 Amps per phase (maximum) – 416 kW, 1.4 M Btu/hr

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Three phase configurations

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40 Amps per phase (minimum) – 13.0 kW, 44,382 Btu/hr

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280 Amps per phase (maximum) – 416 kW, 1.4 M Btu/hr

Power Configurations

Two power configurations are available for the SL8500 library: 

1. N+1 base power configuration

2. 2N power configuration

N+1 Base Power Configuration

The base power configuration contains one system power distribution unit (PDU) and 

one N+1 PDU.