21-1
C H A PT E R
21
Sensor Unit Replacement
This chapter explains the replacement procedure for the sensor unit (SNSU). It covers the
following:
■
Section 21.1, “Overview of the SNSU” on page 21-1
■
Section 21.2, “Cold Replacement” on page 21-4
As a replacement method for the SNSU, only the cold replacement method can be used. For
the definition of the replacement method, see
Section 4.1, “Types of Replacement
.
21.1
Overview of the SNSU
This section provides an overview of the SNSU and describes its mounting locations.
The sensor unit monitors the temperature and humidity of air drawn in by the server. The
sensor unit consists of only a detecting element, and the controller block is built in to the
operator panel. Active maintenance cannot be performed on the SNSU.
, and
show the mounting locations of the SNSUs of
M8000 server, M9000 server (base cabinet), and the base cabinet of M9000 server with the
expansion cabinet respectively.
Summary of Contents for SPARC Enterprise M8000
Page 4: ......
Page 15: ...Contents xv Index Index 1 ...
Page 16: ...xvi SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 22: ......
Page 27: ...Chapter 1 Safety and Tools 1 5 M9000 Server Front View ...
Page 29: ...Chapter 1 Safety and Tools 1 7 Power Supply Unit PSU ...
Page 38: ...1 16 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 88: ...2 50 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
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Page 154: ...5 6 SPARC Enterprise M8000 M9000 Servers Service Manual October 2012 ...
Page 205: ...Chapter 7 I O Unit IOU Replacement 7 13 FIGURE 7 8 Removing the IOU Front of M9000 1 1 2 3 ...
Page 227: ...Chapter 8 FAN Unit Replacement 8 11 FIGURE 8 9 Removing the FAN Unit Rear of M8000 1 2 ...
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Page 409: ...Chapter 20 Backplane Replacement 20 29 FIGURE 20 16 Removing the FANBP Rear of the M8000 ...
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Page 439: ...Chapter 23 Switch Backplane Replacement 23 7 FIGURE 23 4 Removing the SWBP Rear of the M8000 ...
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