Figure 1: Typical Dvr Installation - Speco D4CX Operation Instruction Manual

Operation Instruction
NOTE: This manual covers the 4- and 8-channel digital video recorders. The DVRs are identical except for the
number of cameras and alarms that can be connected and the number of cameras that can be displayed.
For simplicity, the illustrations and descriptions in this manual refer to the 8-camera model.
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Figure 1: Typical DVR installation.