Q-See QSDR008RTC - Manual (Page 10)

User Manual
6
2.2.2 8- Channel Rear Panel
1 Power switch port 7 USB port backup to Flash Drive & Hard drive
2 CH1-8: Video inputs 8 Mouse port
3 Video Outputs 9 RS-485/Sensor / Alarm port
4 Audio Input 10 Connect Power Supply
5 Audio Output 11 VGA Port
6 LAN: LAN port for Network Access
4-CH: RS485/Sensor/Alarm port functions
(from left to right):
Pin 1-2 ：PTZ Control port
Pin 1 ：RS-485A
Pin 2 ：RS-485B
Pin 3-4 ： Sensor 1 input
Pin 5-6 ： Sensor 2 input
Pin 7-8: Sensor 3 input
Pin 9-10 ：Sensor 4 input
Pin 11-12 ：Alarm Output
8-CH: RS485/Sensor/Alarm port functions
(from left to right):
Pin 1-2 ：PTZ Control port
Pin 1 ：RS-485A / Pin 2：RS-485B
Pin 3-4 ： Sensor 1 input
Pin 4-5 ： Sensor 2 input
Pin 6-7: Sensor 3 input
Pin 7-8 ：Sensor 4 input
Pin 9-10: Sensor 5 input
Pin 10-11: Sensor 6 input
Pin 12-13: Sensor 7 input
Pin 13-14: Sensor 8 input
Pin 15-16
：Alarm Output
1 2 3 4 6 11
5 7 8 9 10