46034-0997 <90-00030>
P
AGE
7
APPLICATION INFORMATION
S
UMMING
AND
D
ISTRIBUTION
A
PPLICATIONS
Fig. 3 shows a switch setting diagram for summing applications.
Each data port to be summed has its bus output switched to the
bus. The data port that is to receive the summed data from the
contributing data ports has only its bus input switched to the
bus. The switches also can be set for distribution of communica-
tions using a common data bus. The input from one port distrib-
utes to the output of the other ports.
The modules data communication buses route to the edge
connector which allows for bus expansion (pins 45 through 50).
Additional 46034 Hubbing Modules can share any or all of the
same buses which provides data summing/distribution/bridging
between data ports in different modules.
B
RIDGING
A
PPLICATIONS
Fig. 4 shows a switch setting diagram for bridging applications
using half-duplex communication. Each data port on the data
bridge must have bus input and output switches set to the bus
being used. Because each data ports bus input and output feed
to a common OR gate, the data port putting data on the bus
cancels its own input at the OR gate.
Fig. 5 shows a switch setting diagram for an RS-232 bridging
application using full-duplex communication. Module strapping
lets each data port provide either an RS-232 or RS-422 data
interface to the six data buses.
When strapped for RS-422 data, each of the eight data ports
receives and transmits data. When strapped for an RS-232
interface, two data ports may be required for each interface,
which limits the functioning data ports to four (not including
port nine). If CF and CA leads are not used, all eight ports are
available.