Specifications

1. Before turning on the power
6
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).
Input equivalent circuit
TTL open collector output
*
← inside
approx.
COM
push
switch
1
outside →
M252A
IN
Short-circuited when IN is ‘H’
toggle
relay
transistor
IN
IC=6mA
Open OFF
Short ON
Vcc
+5V