... 2285mm(L*W*H) Yalong YL-795A-type networking automatic fire alarm and fire broadcasting telephone linkage ... do design, installation, wiring, commissioning, operation, interaction, networking, integration and maintenance operations in the self-defined area ... 3) Dimensions: 1940mm × 1070mm × 2285mm (length × width × height). Networking automatic fire alarm and fire broadcasting telephone linkage system