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Tel: 0755-29183373 (16 wire)
Fax: 0755-28094838
Email: cctv@www.long-kj.com
Address: No. 1 Bantian street Shenzhen city Longgang District Science and Technology Parks Jihua Road No. 1 Building 2 floor A
Zip code: 518000
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Common failure analysis of AD matrix
1. When the AD matrix alarm linkage is connected, why can't the police linkage g
