5.3 Install an option board
1/ Switch off the master clock, open it, see page
37.
2/ Install the option board in the slot, fix it with the screws provided and put the label in front of it.
3/ Connect the output or input lines of this board.
4/ Close the SIGMA C and switch it on.
please note: in the "Time outputs" technician menu, "DEL" mode is used only to uninstall an
option board from the master clock.
Caution: each Sound module counts for one extension card of the master clock (Max. 2 options
boards).
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