Optiview DVRJ4 - Manual (Page 42)

DVRJ4
Audio input / output
Audio input 1 Line Input
Audio output 1 Line Output
Connector
Video input Composite : 4 BNC
Video output Composite : 2 BNC
Audio input 1 RCA connector
Audio output 1 RCA connector
Storage
Main storage Hard drives x 2pcs(Master & slave)
Backup Via USB port
User’s manual