RS232 to RS422/485 isolated converter, DIN-rail
The KD485 is a multi-purpose interface converter designed to satisfy a wide range of industrial datacomms requirements.
One common application is the connection of multi-dropped RS485 devices to an RS232 system. Most currently available converters require the RS232 device to control its RTS signal to enable/disable the RS485 driver, but some RS232 systems do not have this capability.
The KD485-ADE avoids RTS control: Another application is a multi-drop connection of non-addressable RS232/422/20mA devices, to enable to be conveniently polled from a single RS485 Master device. The KD485-ADE can act as an “addressable adapter”.
Many projects involve the interconnection of equipment which is mutually incompatible. The KD485-PROG can be programmed – in ANSI C - to convert virtually any async industrial automation protocol into any other.
This entry-level product has no CPU. It is an interface converter/isolator only and is baud rate and character format independent.
Its main application is RS232/422/485/20mA isolated interface conversion. It can also drive a 2-wire RS485 bus if the RS232 host provides RTS control (RTS=HIGH when sending, LOW when receiving).
|Ports:||• 2 Asynchronous ports, Tx and Rx signals only. XON/XOFF selectable|
|Port parameters:||• 0-115200 baud, all character formats|
• Standard product: port-1 is RS232; port-2 is RS422/485/20mA.
• Any combination on port-1 and port-2 of RS232/422/485/20mA can be supplied
|Signaling:||• LED, port-1 Rx/Tx, port-2 Rx/Tx, power|
|Power supply:||• +7 to +35VDC|
|Consumption:||• 1-2 watts (startup current 300-600mA)|
|Isolation:||• 3 Way galvanic isolation, 64V PK at > 1000AC RMS, 1 second|
|EMI-RFI protection:||• Emession EN50081-2 (94), immunity EN50082-2 (95)|
|EMC & Security:||•|
|Environment:||• Operating temp. 0 to +50°C, RH 0 to 90% non condensing|
|Dimensions, weight:||• 29mm (W) x 113mm (H) x 100mm (L)|
|Ventilation:||• 50mm gap below and above the converter|