AR401RO16 16 Channel Digital Output Module
AR401R016 is 16 channel relay interface to connect up to 16 lift level. Multiple AR401R016 can be looped together via RS485 bus to achieve more than 16 floors. All relay is NC by default. Upon power up, all relay will become NO. Card access reader will instruct AR4016R016 lift relay to open designated relay depending on the floor allowed for access permission.