Active Communication

Application:
Multiplexing of an RS232 interface

Product properties:

• Operating modes:
  • Changeover using control sequences:
    1 computer runs for example two serial devices
  • Time-controlled switching with adjustable switch time:
    2 computers share for example one serial terminal device:
    Printer, plotter, hand scanner, card reader, etc...
• No manual intervention necessary
• Data back channel allows connection of bi-directional peripheral devices
• Individual configuration of interfaces
• Conversion of baud rate, data format and handshake protocol possible
• Integrated diagnostic and startup aid: Setting dump
• Extended supply voltage range up to 24V
• Shipped optionally with or without power supply:
  Please order power supplies as separate accessories.
• Conforms to standards both in office and industrial environments:
  • Increased noise immunity for industrial areas
  • Stricter noise emission for residential and commercial areas

Serial ports:		#85643: 3 x RS232 #85644: 3 x RS232/422/485 all ports can be configured independently of each other
Supported signals:		RxD, TxD, CTS, DTR
Baud rate:		150..115,200 baud
Data format:		7,8 data bits, no,even,odd parity
Flow control:		Hardware handshake or XON/XOFF protocol
Integrated buffer:		4 MB
Operating modes:		Switching via control sequence Time-controlled switching
Switching times:		Adjustable in increments of 5, 15, 30, 120 seconds (other values on request)
Power supply:		12..24V DC/AC
Current consumption:		typ. 30 mA at 24V DC
Supply voltage connection:		Plug-in screw terminal, 5.08mm spacing Labeled "L+" and "M"
Ambient temperature:		Storage: -40..+70°C, Operation: 0..+60°C
Permissible relative humidity:		0..95% RH (non-condensing)
Housing:		Plastic housing, 105 x 75 x 45mm
Weight:		approx. 150 g
Delivery:		1x RS232 Universal Serial T-switch, 4MB buffer Please order power supplies separately as accessories

Background information:
The W&T RS232 Universal Serial T-Switch is an extremely versatile device. Virtually any uni- or bi-directional 2:1 coupling of RS232 devices is possible with this switch.

The Adapter has 3 RS232 ports: 1 Master port "C" and 2 Slave ports "A" and "B". Each of these ports can be parameterised independently of the others.

The Switch supports 4 data channels (Master C Slave A, Master C B), which are equipped in each direction with 1 MB buffers. The channels are switched either timed or using control sequences from one of the three Switch ports.