Description

B+B SmartWorx Port – Powered RS-232 to RS-422 Converter – 1 Pack – 1 x RS-232 Serial – 1 x RS-422 Serial CONVERTER

The 422LP9R is a port – powered two – channel RS – 232 to RS – 422 converter. It converts TD and RD RS – 232 lines to balanced RS – 422 signals. The unit is powered from the RS – 232 handshake lines DTR an d RTS. One of these handshake lines must be asserted (high) in order to power the unit (See Table 1). The RS – 422 driver is enabled when RTS is asserted. Therefore
RTS must be asserted in order to transmit data. The RS – 422 receiver is always enabled. If DT R is always asserted and the RTS is used to control the driver
the 422LP9R can be used as a RS – 232 to RS – 485 4 – wire converter. To insure reception
it is recommended that DTR is asserted.

In order to maximize the amount of power available to the RS – 422 d river
the RS – 232 handshake lines are not looped back (tied together). As a result the following handshake lines will appear as disasserted (low): CTS
DCD
and DSR. Care should be taken to insure that any software being used doesn’t require any of these handshake lines be asserted. If existing software requires any of the handshake lines to be asserted
you can loop back the required handshake lines in your cable. Product Type:Data Transfer Adapter
Packaged Quantity:1
Environmental Certification:RoHS
Connector Type on First End:RS-232 Serial
Connector Type on Second End:RS-422 Serial
Adapter Type:Serial
Manufacturer Part Number:422LP9R
Manufacturer Website Address:http://www.advantech.com
Manufacturer:Advantech Co.
Ltd
Product Model:422LP9R
Product Name:Port – Powered RS-232 to RS-422 Converter
Country of Origin:United States
Environmentally Friendly:Yes
Connector on First End Details:1 x RS-232 Serial
Connector on Second End Details:1 x RS-422 Serial