Home > News > Technical Article for DVR/NVR > How to connect alarm devices to CCTV DVR?
Certifications
Contact Us
MVTEAM Technology Co., LTD
Tel: (86-0755) 83129382
Fax: (86-0755) 82661081
Whatsapp, wechat, mobile phone: +86 13632876665
Skype: cnmvteam
Email: sales@mvteamcctv.com
Add: Room 212, ShangShuiJing Building Complex, Jihua Road No.333, Jihua street, LongGang District, Shenzhen, China
Contact Now

News

How to connect alarm devices to CCTV DVR?

Grace Liu www.mvteamcctv.com 2016-10-26 11:59:51
Most DVRs have alarm input and output ports,it means the DVRs support alarm devices.Then,do you know how to connect alarm devices to DVR?Here we drew two simple diagrams to explain it.

Usually,the DVR alarm output port is without 12V DC,so you need add power for alarm output device.Diagram 1:
How to connect alarm devices to CCTV DVR?

But,if the DVR alarm output port with 12V DC,then only need connect siren to the output interface,no need addtional power.Diagram 2:
How to connect alarm devices to CCTV DVR?

How to know the DVR alarm output with or without 12V DC?
Open DVR menu,enter "alarm setting" interface,click "alarm output",then,use multimeter to test 
whether there is 12V DC in DVR alarm output port.If there is 12V DC,connect as diagram 2.If no,connect as diagram 1. By the way,MVTEAM DVRs don't have 12V DC output at alarm ports.

Related Articles: