H.264 Realtime Recorder Installation User Manual
Installation Guide
EVD-16/400A16HC
96
www.eurovideo-cctv.com
APPENDIX 1
ALARM SENSOR INSTALLATION
1. Components
1) External Sensor: 1
2) DVR System: 1
2. Inner Circuit for Sensor Input
The inner circuit of DVR is as follows,
①
PC817 : Photo Coupler
②
The Specification of PC817