These manual stations are used in the polling circuit of the Bosch Security Systems, Inc.'s FPA‐1000 Analog Addressable Fire Panels, and the D9024, D8024, and D10024A Fire Alarm Control Panels (FACP).
All commercial buildings use manual stations. These manual stations allow people evacuating a building to initiate an alarm. The FACP identifies the alarm point on the polling circuit and the alarm lever latches in the pulled position.