
How the system
renumbers
logical ports
The automatic renumbering configuration, which renumbers the logical ports,
begins at the bottom universal slot and proceeds upward. When the configuration
is finished, the line and station ports are numbered logically from slot UNV1
through slot UNV6.
Adding boards
without
renumbering
When you install additional boards or relocate existing boards after the system is
in service, the logical numbers of the stations or lines on the added board continue
from the last assigned logical number. For example, if your last assigned station
number was 16, the next station number will be 17, regardless of the board’s
physical slot.
After you remove and delete a board through programming, that board’s logical
ports are available for reassignment. So an added or relocated board would then
take the logical port numbers from the removed board and not from the end of the
logical sequence. For example, if you had 64 stations and were to remove a
station board that had held logical stations 1–16, the next station board that you
installed would occupy logical station ports 1–16 and not ports 64–80. If you were
to remove an 8-port board and replace it with a 16-port board, the first eight ports
on the new board would replace the original eight logical port numbers, and the
remaining eight ports would begin with the last assigned logical port. Using the
same scenario, the new 16-port board would have logical ports 1–8 and 64–72.
22 – Reviewing the Hardware
GCA40–242 General Description
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