User`s guide

Agilent 4155C/4156C User’s Guide Vol.2, Edition 6 8-35
Support Functions
Switching Matrix Control
Step 8. To select connection rule
In the CONN RULE field, select the connection rule, either SROU or FREE, using
the softkey.
SROU Sets the single route connection rule. Each input port can be
connected to only one output port on a matrix card.
FREE Sets the free connection rule. Each input port can be connected
to multiple output ports and each output port can be connected
to multiple input ports.
CAUTION Do not connect multiple inputs to an output
If the free connection rule has been specified, ensure multiple input ports are not
connected to the same output port. Such configurations can cause damage to the
instrument connected to the input terminals.
NOTE Connection after connection rule changed
Changing the connection rule does not change the connection setup of the E5250A.
So you may find the unmatched connections for the single rule on the CHANNELS:
E5250A CONNECTION SETUP screen after you change the connection rule from
free to single. Then select the APPLY OPEN ALL softkey to apply the open to all
connections on the E5250A.
Step 9. To select connection sequence
In the CONN SEQ field, select the connection sequence, either BBM, MBBR, or
NSEQ, using the softkey.
BBM Sets the break-before-make sequence. This connection
sequence breaks the previous connection, waits for an open
status, and makes the new connection.
MBBR Sets the make-before-break sequence. This connection
sequence makes the new connection, waits for a close status,
and breaks the previous connection.
NSEQ Sets no sequence. This connection sequence breaks the previous
connection, and then makes the new connection.