... interlocking, M4(Momentary)-signal temporary , T4(Toggle)-signal self-locking or more complex control procedures Application: Mainly used in ... before using. There are three states of output: (self-locking, nn-locking, interlocking coexist), choosing different working conditions, decided by ... sucking and keeping, the work in circulation.C. signal self-locking -- Pressing on the learning key "9" on the ...