ET-8C500 is a microprocessor resident remote alarm processing unit provides 16 supervised alarm input circuits and 16 programmable alarm output circuit which can be use in small to large systems, 256 units of remote alarm processing unit can be addressed by the MEGA-CCTV control system.

The remote alarm processing unit can be mounted near security alarm sensors at central control location, requiring simple single cable from each alarm sensor to the remote alarm processing unit, providing full alarm reporting, sensor status monitoring and programmable alarm output control functions from the MEGA-CCTV system. These units can be used individually, or interconnected to configure an alarm network of 16 to 4096 alarm input points, supervised inputs are provided for N.C. alarm contacts for each alarm inputs. The unit requires a 4 core twisted shield data cable which looped to each remote alarm processing unit from the MEGA-CCTV control PC.

The sixteen programmable alarm output control circuits which provides a open collector output (DC50V500mA), output can be used to drives alarm buzzer, audio switching, bell or relay to control low voltage device or display devices. All output points can be individual program and control by the MEGA-CCTV System computer when alarm activated and received by the MEGA-CCTV system and macro alarm output program activated.