Series Connections - Agilent Technologies N8900 series Operating Manual

Multiple Unit Connections
Share Connections
The Share terminals must be connected for parallel operation as shown in the figure above. For further information
about current sharing, refer to
multiple units.
Group Connections
A Group or master/slave configuration can also be used when connecting units in parallel as shown in the figure. This
allows one designated unit to be the master controller of all of the units connected in the group. Grouped connections
use a digital RS485 bus. Connections are made using standard CAT5 or better cables. For further information about
group configurations, refer to
Do not connect an Ethernet port to a Group connector.
The following figure details the termination switch settings for the grouped units. Only the first and last units in the con-
nection chain need to have the switch set to the "terminated" position.
Group
Connections

Series Connections

SHOCK HAZARD Series connections are not allowed as floating voltages must not
exceed the ratings given in the
36
Current Share Operation. The following figures details the Share bus connections for
Group Operation.
Switches up - unterminated, normal
Switches down - terminated, only
for units at the beginning and end of
the instrument chain
specifications table.
Agilent N8900 Series Operating and Service Guide