KD485-ADE RS232 to RS422/485 Din Rail Interface Converter

The KD485-ADE is an interface converter which contains a microprocessor (with two serial ports) in the data path. This provides data buffering and enables baud rate and character format conversion. The KD485-ADE is a highly versatile converter which is intended for RS232 to RS485 conversion (and offers automatic RS485 driver enable) but works equally well for RS232 to RS422, half duplex and full duplex.

Several standard application programs ("Modes") are provided in a built-in ROM:

Mode 0:  emulates KK Systems' KD485-STD but also provides baud rate and character format conversion, with data buffering and precise edge timing regeneration.

Mode 1:  as above, plus Auto Driver Enable (ADE). The Port 2 RS485 driver is automatically controlled according to Port 1 receive data.

Mode 2:  RS485 Addressable Adapter. This makes possible to connect non-addressable RS232 devices to a 2/4-wire RS485 bus, through which they can be polled by a single Master. Devices which emit data continuously are also supported by the KD485's queues. The RS485 address and an optional lead-in byte are fully configurable.

The KD485-ADE is configured using a "dumb" terminal or a PC (via Port 1, RS232) using the supplied GUI-based KDCFG Windows configuration program.

FEATURES

* 7-35V DC powered 
* Three-way isolated (Port 1, Port 2 and power input are mutually isolated) 
* Data flow indicator LEDs 
* High quality removable screw terminals 
* Professional Quality