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Microwave Switch/Attenuator Driver 7
L4400 User’s Guide 153
SYSTem:PRESet, *RST, SYSTem:CPON and Power On
These actions drive the channels to their defined DEFault state (using the
configuration stored on the remote module) and force the system to recognize
new topologies (caused by power or connectivity changes). These actions set
the defaults shown in the table on page 152. Two parameters are
controllable to ensure safety of operation in the system; the default state
for channel closure and the default state for drive enabled.
The default channel state (open or closed) for each channel can be set using
either of the following commands.
ROUTe:CHANnel:DRIVe:CLOSe:DEFault
ROUTe:CHANnel:DRIVe:OPEN:DEFault
The drive state can be set as a default using the
ROUTe:RMODule:DRIVe:SOURce:BOOT command. This command allows you to
specify whether the drive current, when present, should be applied to the
switches or not. You can set OFF, INTernal, and EXTernal for the default.
The
*RST command forces a re-evaluation of all connected remote modules,
followed by setting all channels to their default states. This is very similar in
operation to what occurs at power- up.
ROUTe:RMODule:BANK:PRESet
This command sets a bank to default values that vary according to which
distribution board is attached. The following table shows the default states set
by
ROUTe:RMODule:BANK:PRESet.
NOTE
If a channel is configured for a single drive in pulsed mode, OPEN
operations are undefined. When these channels are configured to a
default state of OPEN, no action is taken on these channels.
Y1150A Y1151A Y1152A Y1153A Y1154A Y1155A
ROUT:CHAN:DRIV:PULS:MODE ON ON ON ON ON ON
ROUT:CHAN:DRIV:PULS:WIDT 15 ms 15 ms 15 ms 15 ms 15 ms 15 ms
ROUT:CHAN:PAIR:MODE ON OFF ON ON ON OFF
ROUT:CHAN:DRIV:TIME:REC 0 s0 s 0 s0 s0 s0 s
ROUT:CHAN:DRIV:TIME:SETT 0 s0 s 0 s0 s0 s0 s
ROUT:CHAN:VER:ENAB OFF OFF OFF OFF OFF OFF
ROUT:CHAN:VER:POL NORM NORM INV INV NORM NORM
ROUT:RMOD:BANK:DRIV:MODE OCOL OCOL OCOL OCOL OCOL OCOL
ROUT:RMOD:BANK:LED:DRIV ON ON ON ON ON ON