German Krenel plug Krenel model Krenel price

Krenel plug is a control module that can output a signal or provide a discrete signal to actuate controlled equipment when control is required, while also receiving feedback signals from the equipment to report to the host. It is an important component of fire alarm linkage systems. Input/output modules available on the market can provide a pair of passive normally open/normally closed contacts to control the controlled equipment. Some manufacturers' modules can be configured via parameters for active output (such as GST GST-LD-8301). Corresponding types include dual input/output modules and multi-