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Key points to note on these 22R5217 IBM Power 740 Cables:-
These cables are used to connect expansion units into the system power control network (SPCN).
The system uses 12X SDR or 12X DDR cables to send and receive customer data and auxiliary control information to and from the expansion unit, and to download expansion unit firmware. The SPCN is used to control power to the expansion units and is used as a backup to the 12X cables for auxiliary control and firmware download. Observe the following guidelines when you are determining whether to use a 12X DDR cable: :: Any 12X DDR cable can be used in any 12X application, as long as the specified length restrictions are observed. :: A 12X DDR cable can be used instead of a 12X SDR cable, as long as the specified length restrictions are observed. The system uses RIO/HSL to send and receive customer data and auxiliary control information to and from the expansion unit and to download expansion unit firmware. The SPCN network is used to control power to the expansion units and as a backup to the RIO/HSL for auxiliary control and firmware control. The following expansion units do not use SPCN cables: :: 5791 :: 5794 :: 7040-61D Power is controlled by the rack bulk-power assembly (BPA) through UPIC cables.
The system uses 12X SDR or 12X DDR cables to send and receive customer data and auxiliary control information to and from the expansion unit, and to download expansion unit firmware.
The SPCN is used to control power to the expansion units and is used as a backup to the 12X cables for auxiliary control and firmware download.
Observe the following guidelines when you are determining whether to use a 12X DDR cable:
The system uses RIO/HSL to send and receive customer data and auxiliary control information to and from the expansion unit and to download expansion unit firmware. The SPCN network is used to control power to the expansion units and as a backup to the RIO/HSL for auxiliary control and firmware control.
The following expansion units do not use SPCN cables:
Power is controlled by the rack bulk-power assembly (BPA) through UPIC cables.
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