3 Maintain the ATCA Subrack
3.1 Before You Start
Read this section before you start the procedures in this chapter.
Impact on System: As long as only one unit is removed and replaced at any
one time, there is no impact on the system. This is because redundancy is
built into the components of the ATCA Subrack.
In a standard configuration, the upper ATCA Subrack is empty. In a
pre-equipped configuration, the lower subrack contains a full set of units. The
procedures described here apply to both subracks.
Preventive Maintenance: Only replace RITs on the ATCA Subrack, if the BSC
terminal displays alarm signals for them.
3.2 ATCA Subrack Presentation
The following figure shows the ATCA subrack front view in case of 9130 BSC
Evolution 1000 TRX configuration.
12345678901234567890123456789012
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12345678901234567890123456789012
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JBXSSW
JBXOMCP
JBXCCP
JBXTP
Air inlet
CLOSED / OPEN
H/S OOS
CLOSED / OPEN
H/S OOS
CLOSED / OPEN
H/S OOS
CLOSED / OPEN
H/S OOS
Not Used
Not Used
JBXCCP
JBXTP
JBXOMCP
JBXSSW
JBXCCP
JBXCCP
JBXCCP
JBXCCP
Figure 4: The ATCA Subrack, Front View
22 / 90 3BK 21281 AAAA PCZZA Ed.13
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