MSH8900
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Conventions used in this section are described in Table 17.
4.1. Maintenance
4.1.1. Extracting a Hub Module
The system is electrically designed to support a surprise extraction. However, this type of
extraction is not recommended and could affect system performance and functionalities.
When a hot swap procedure is performed on MSH8900 series hubs, the following systems and functionalities could
be affected:
In an MS2900 platform: The MSP nodes lose half of their fabric and base connections. For some models, notably
multi CPU engine MSP nodes, this means one CPU loses its single base connection.
In an MS1300 platform: The MSP nodes lose all of their fabric and base connections.
ESD-Sensitive Device!
Take all necessary ESD protection measures.
Steps in blue apply only to hot swap procedures.
1. Take all necessary ESD protection measures.
2. Press the power button of the hub to be extracted.
3. The ID LED of the hub becomes steady blue: the hub is ready to be extracted.
4. To release the safety locks, simultaneously squeeze the black moving parts against the black fixed parts and
move the safety locks to a 90-degree position to unhook the hub from the frame of the MS2900 or MS1300
(Figure 18).
5. Hold the safety locks and extract the module by pulling it from the slot.
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