User manual

7960H H.264 DVR User Manual
2.2.4 RS485, sensor and alarm termination block
Use the back panel termination block to connect sensor, RS-485, and alarm out cables.
Pin block denitions:
D+, D-: RS-485 D+ and RS-485 D-
S1, GND: Sensor 1 input
S2, GND: Sensor 2 input
S3, GND: Sensor 3 input
S4, GND: Sensor 4 input
A, B: Alarm output
NOTE
S1 - S4 sensor inputs can be normally open (N.O.) or normally closed (N.C.). To congure the sensor type, go to
SETUP -> Device -> Sensor: Type.
NOTE
A - B (alarm out) can be triggered by any single of combination of sensors and motion on or video loss in up to four camera
channels. To congure alarm causing conditions, go to: SETUP -> Device -> Alarm Out.
SECTION 2: HARDWARE OVERVIEW AND SETUP