Fire Telephone Socket

Model No.: DH2205C Fire Telephone Socket
Standards: GB 16806-2006, GB 3380, GB/T 15279-2002
Ambient: Indoor, -25℃~+70℃, RH ≤95% (40℃±2℃, non-condensing)
Operating Voltage: DC18V~DC30V
Current: 15~30μA (monitoring)
Indication: Flash once per 8s (monitoring); indicator differs for call/talk status
Wiring: Non-polar two-wire bus (L1, L2, L1-1, L2-1; L1-L1-1 & L2-L2-1 internally linked)