Teac TD-240A - 2-6． Connecting Hold and Digital Zero Signals

2.CONNECTION
12
2-6. Connecting Hold and Digital Zero Signals
・Equivalent circuit （input）
Vcc
← Inside
Ic=Approx.8mA
COM
Push
switch
Toggleelay
switch
Relay
Contact
Transistor
+12V
IN
IN
ON when IN is ’H
TTL open
＊
7
8
Outside →
TD-240A
collect output
[ Hold input ]
Ic=Approx.8mA
COM
Push
switch
9
8
[ DZ input ]
Connect 9 and 8.
CAUTION
・Avoid applying external voltages to the signal
・Use external elements which withstands Ic=10mA
・Leakage current from external element must be 30μA or below.