MODEL232BSS4 B&B Electronics, MODEL232BSS4 Datasheet - Page 18

• Manufacturer Part Number: MODEL232BSS4
• Description: Buffered Smart Switch
• Manufacturer: B&B Electronics

Back to Back Operation (mux/demux)
ports to provide a simple form of multiplexer/demultiplexer. Any
Slave port on one switch can automatically send to one or more
ports on the other over the single Master port communication
channel. The setup software walks the user through the
configuration and automatically sets the Slave port preambles.
the Slave ports would typically be set up for a slower baud rate than
the Master ports. If the Master ports will not be running at a baud
rate at least four times the speed of the Slaves, or if the main Master
channel will be connected over a slow communications channel
such as through modems, all ports should be configured through the
setup software to use hardware handshaking.
ports when you configure the switches for back to back operation. If
you are operating the switches with a direct cable connection or if
your communications link does not require handshaking, this option
can be turned off in the single unit configuration setup. For details on
how to use the setup software, see Chapter 4.
will normally be connected to either the Master port of another switch
or some type of modem. Because the Master ports are almost
always connected to another DCE device, a null modem cable will
probably be required. Refer to the cable charts in Appendix B for
connecting the Master port to another DCE port.
16
Printer
Printer
PC
PC
Two 232BSS4s can be connected together through their Master
When two 232BSS4s are connected for Back to Back operation,
Hardware handshaking is automatically turned on for the Master
Note that in Back to Back operation the 232BSS4 Master ports
Figure 2.2. Back to Back Operation
RF Modem
Modem
Direct Cable Connection
or
or
Documentation Number 232BSS41202 Manual
RF Modem
Modem
78.6
78.6
78.6
78.6
Scale
Scale
Measurement
Measurement