Power Supply

250 watts

Operating Voltage

100 to 127V ac; 50 to 60 Hz

200 to 240V ac; 50 to 60 Hz

Heat Output (Maximum)

Operating 478 BTUs per hour

Acoustics

Average sound-pressure levels:

At operator position:

 

Operating

n/a

 

Idle

n/a

At bystander position (1 meter)

 

Operating

35

dBA

 

Idle

30

dBA

Declared (upper limit) sound power levels:

Operating

5.2 Bels

Idle

4.7 Bels

Chapter 1. Reference Information 1-5

Page 23
Image 23
IBM B50 manual Power Supply, Operating Voltage, Heat Output Maximum, Acoustics