The component software (except for AppleTalk v58.1.5) in NSI 1.5.1 is included with System 7.5.2 on PowerBook 190 and 5300 series computers, so you do not need to install NSI 1.5.1. The only exception, AppleTalk v58.1.6 which supports IRTalk is installed on the PowerBook 190 and 5300 series computers. IRTalk is a built-in infrared technology implementation.
NOTE: IRTalk is an option on the PowerBook 190 series computers. (Macintosh PowerBook Infrared Upgrade Kit Order No. M4071LL/A.)
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