Have you ever needed to connect more than one RS232 device to your computer at a time?

The addressable RS232 to Half Duplex RS485 converter allows this. Each device can be individually selected and the computer or PLC talks to that device.

Example, you want your computer to talk to 3 printers in different parts of the factory. Wire up the 5258 converters as in the picture. The 5258 connected to printer 1 has its address set to address 1. Similarly for the 5258s connected to printers 2 and 3. To select a printer a command is sent. This can be either the STX (02HEX) control character, or HeAdEr. The following example sends "Hello World" to printer 1 and "Good Morning" to printer 2: HeAdEr01Hello World HeAdEr02 Good Morning The printers only receive the data intended for them and never the command HeAdEr.

Key Benefits
Time Saving:

No computer required for setting up. Complete setup with one switch

Switchable line termination

Automatic baud rate detection

High Performance:

Selected channel receives only data intended for it. No leakage of channel selection characters

Very fast data turnaround. For 8 bit no parity: 0.2ms at 9600bps

Communication distance of up to 1.2km (4000 feet)

Versatile:

Small size 1" wide (25.4mm), light-weight unit

9 - 24 volt power supply

Can handle binary data

Broadcast mode allows sending data to all RS-232 devices on network at one time

Easy to Install:

Plugs directly into your PC serial port

Plug in screw terminal connector for RS-485

Separate transmit and receive lights show data flow. Address light shows when unit selected

Safe:

Full optical isolation protects your computer from power spikes

RS485 side has self resetting fuses and spike protection on each line

Robust flame retardant case

Microprocessor has watchdog protection

Warranty:
Three years

Used In:

Control multiple printers

Control multiple RS232 devices from one serial port

Create a network of RS232 devices over 1.2km

Gather statistics

Many other applications

Specification

Dimensions (mm)	25(w) x 80(h) x83 (d) (1"x 3.15" x 3.26")
Enclosure	Robust ABS
Transmission Distance	1.2km (4000 feet)
Weight	90g
Operating temperature	32° to 140° F ( 0° to 50°C)
Storage temperature	-4° to 158° F (-20° to 70° C)
Humidity	15 to 90% relative non condensing
Isolation Voltage	1500V max transient (to EN 60950 : 1992)
Power	9-24Vdc unregulated
Power RS485	35mA at 12Vdc
DIN rail adapter	Add 32mm to depth (d)
Connectors	RS232: DB9 female RS485: Plugable 5 way screw terminal connector with strain relief 0.2-2.5mm2 (AWG 24-12)
Operating mode	2 wire full duplex point to point or Multidropp
Data rates	300 to 115200 bps
Indicator lights	TXD, RXD and STATUS