Unipulse M252A Operation Manual page 57

5. Optional interface
Input equivalent circuit
A signal is inputted to the signal input circuit by short-circuiting or opening the input terminal and the
COM terminal. Short-circuiting is effected by means of a contact (such as a relay or a switch) or a
noncontact (such as a transistor or an open-collector TTL).
46
Vcc
+5V
toggle
*
IN
TTL open collector output
short-circuited when IN is 'H'
M252A
← inside outside →
Logic Negative Positive
Open
Short
approx.
IC=0.5mA
push
switch
COM
1
OFF ON
ON OFF
relay
transistor
IN