Port ID Numbering
Each CPU Port on a KH88 installation is assigned a unique Port ID. You can directly access any computer on any level of the installation by specifying the Port ID of the CPU port that the computer is connected to - either with the Hotkey port selection method, or with the OSD.
The Port ID is a one, two, or three digit number. It is determined by the Stage Level and CPU Port number of the KH88 unit that a computer is connected to.
The first digit represents the CPU Port number of the First Stage unit; the second digit represents the CPU Port number of the Second Stage unit; the third digit represents the CPU Port number of the Third Stage unit.
MA computer attached to a First Stage unit has a one digit Port ID (from 1 - 8), that corresponds to the CPU Port number that the computer is connected to.
MA computer attached to a Second Stage unit has a two digit Port ID.
The first digit represents the CPU Port number on the First Stage unit that the Second Stage unit links back to; the second digit represents the CPU Port number on the Second Stage unit that the computer is connected to.
For example, a Port ID of 2 3 refers to a computer that is connected to CPU Port 3 of a Second Stage unit that links back to CPU Port 2 of the First Stage unit.
MLikewise, a computer attached to a Third Stage unit has a three digit Port ID. A Port ID of 2 4 1 refers to a computer that is connected to CPU Port 1 of a Third Stage unit, that links back to CPU Port 4 of a Second Stage unit, which, in turn, links back to CPU Port 2 of the First Stage unit.
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