VTX40 / Dry contacts board
Documentation page: https://vutlan.atlassian.net/wiki/spaces/DEN/pages/815759361/VTX40+Dry+contacts+board
Product page:
Description
Extension PCB board 'VTX40 / Dry contacts board (IN, OUT)' is mounted and connected inside of VT960, and VT960i DC master units.
The 2-wire interface has x32 dry contact inputs (digital inputs) & x8 dry contact outputs (digital outputs). It can be used together with any contacts, for example, doors, windows, fire alarms, burglar alarms, power systems, circuit breakers, exit/push buttons, etc.
The PCB board has three types: VTX40a, VTX40b, and VTX40c. When installing, VTX40a has to be the first board in a chain to be connected. VTX40b is the second board. VTX40c is the third and last board in an I2C chain. Each board adds additional contacts.