Interface converter
communication usb – rs485

The K-114 interface converter is recommended for use with KELLER products and enables
communication between a device and computer via a USB interface.

Description

The interface converter communicates with the connected devices via an RS485 bus. Power is
supplied to the connected devices via the computer's USB interface or an external power supply.

Bias or termination resistors may be activated if necessary in order to improve communication
via the RS485. An echo function is also available.

Multimeter/measuring analog signals

The K-114 converter measures the power consumption of the connected devices and an
arbitrary voltage signal. These signals can be evaluated and displayed using the supplied software. If only one external device is connected, a functional check can be performed or the
analog pressure signal can be displayed.

The K-114 interface converter enables

✓ Communication USB – RS485 (half-duplex)
✓ Power supply to connected devices (12 VDC)
✓ Measurement of applied signal voltage (0…12 VDC)
✓ Measurement of the power consumption of end consumers (0…40 mA)
✓ Optical status and configuration display (LED)
✓ Galvanic isolation between computer and converter
✓ Selective activation of echo, bias resistors or a termination resistor
✓ Software and drivers included in scope of delivery

Parameter Name	Parameter Value
Type	signal analog measuring
Bus	RS-485, USB, pressure
Other characteristics	galvanic