Hitachi PRIMAIDE 1440 Instruction Manual page 197

+5 V
320 
Primaide1000 series unit
0.1 A max.
Primaide1000 series unit
Fig. 4 Contact Signal Output Circuit
1
2
3
Fig. 3 Contact Signal Input Circuit
1
30 V max.
2
3
APPENDIX 2 - 5
Max. 10 mA
Activated upon shorting contacts
of external unit.
External unit
External unit