AT&T MERLIN LEGEND Release 3.0 System Programming Manual page 93

Using SPM
Boards
The Boards option allows qualified service personnel to add a board to the next
available slot. The system must be idle to use this option. This option is not
available from the system programming console.
The Boards option is also available in surrogate mode. In surrogate mode, you
can assign trunk and extension modules (boards) to slots, even though the
boards have not actually been installed. This type of board is referred to as a
"phantom" or "null" board.
You cannot use the Boards option to change an actual board type. All boards
assigned with the Boards option, including phantom boards, are cleared
(unassigned) if you perform a board renumber (System-Board Renum).
NOTES:
1. You must assign phantom boards to higher slot numbers than any real
boards you assign. If you assign a phantom board to a lower slot number
than a real board, the control unit does not recognize the real board(s) that
follow the phantom board.
2. If you remove a board but do not replace it, and then perform a board
renumber, the control unit will not recognize any boards that follow the empty
slot. You must reseat all of the boards to fill the empty slot before you perform
the board renumber.
The Inspect function ( [ PgDn ] ) lets you see which modules have been assigned to
slots on the control unit. Note that both phantom boards and real boards display
if you use the Inspect function. To see only real board assignments, you must
print the System Information report:
System → More → Print → SysSet → up.
Table 2-5 shows the type of boards that you can select.
2-25
Programming with SPM