Controller - SmartRelay AX Classic

V_in (9 - 32 V_DC)

Power supply input (positive terminal)

Earth (-)

Earth connection (negative terminal)

Relay: NO

NO (normally open) relay contact, not connected to COM when in idle mode

Relay: COM

COM (common) relay contact, connected to NO or NC depending on state

Relay: NC

NC (normally closed) relay contact, connected to COM when in idle mode

Reader: power supply +

Power supply output (positive terminal) for direct connection to the reader

Reader: power supply earth

Earth connection (negative terminal) for direct connection to the reader

Reader: data RS-485 B

RS-485 bus connection B to reader

Reader: data RS-485 A

RS-485 bus connection A to reader

Auxiliary voltage (≈ V_in - 1V)

Auxiliary voltage (positive terminal) for connecting external switches. The auxiliary voltage corresponds roughly to the input voltage minus the voltage drop (approximately 1 V).

The dielectric strength of the external switches must be at least as high as the input voltage.

Earth (-)

Earth connection (negative terminal) as common reference potential for the outputs

Output 2

Digital output (open drain) or Wiegand output (with pull-up resistor, without CLS)

Output 1

Digital output (open drain) or Wiegand output (with pull-up resistor, without CLS)

Input 1

Digital input, e.g. to switch the relay manually (e.g. with auxiliary voltage and button or 4-32 V_DC for push-to-open)

Input 2

Reserved for future functions.