User manual

tams elektronik
KSM-2 English
Opto couplers
Opto couplers are ICs, which work similar to laser beam switches. They
combine in one housing a light emitting diode and a photo transistor. Their
task is the transmission of information without galvanic connection. They
are in a DIL-housing with at least 4 pins.
Relays
Relays are electronic switches, depending on their position the one or
other (internal) connection is closed. The mode of operation of
monostable relays can be compared to that of a push-button switch,
i.e. the connection is only closed as long as the voltage is applicated.
Bistable relays keep their status after switching – comparable to a
switch.
Relays which combine two switches in one housing are common as well
(shortly 2xUM). The switching between the two connections can be
heard clearly because of the resulting clicking sound.
Screw terminals
Screw terminals provide a solder-free and safe connection of the cables
to the circuit, which can still be separated any time.
Terminal strips are available as single or double row versions with 2 or
3 poles (resp. 2x2 or 2x3 poles). Connections with any number of poles
can be created by linking several terminal strips. In order to fix them
the connecting cables are inserted and screwed (similar to a lustre
terminal).
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