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Software Installation and Configuration 2
L4400 User’s Guide 45
Instrument Power-On and Default LAN Configuration States
The L4400 series instruments covered in this user’s guide are set to their
power on and preset states using any one the following commands:
*RST
SYSTem:CPON 1
SYSTem:PRESet
Table 2- 3 lists the power-on and preset states for each instrument.
Table 2-3. L4400 Instrument Power-on and Preset States
LAN Reset (Default) Configuration
Pressing the “LAN Reset” button (recessed) on the L4400 instrument front or
rear panel restores the instrument’s default LAN configuration. Table 2- 4 lists
the default LAN configuration settings.
L4400 Series Instrument
Power-on Preset States
L4421A 40-Channel Armature Multiplexer
All channels open
L4433A Dual/Quad 4x8 Reed Matrix
All channels open
2-wire/1-wire mode: no change
L4437A 32-Channel Form A/ Form C
General Purpose Switch
All channels open
L4445A Microwave Switch / Attenuator Driver
Channel drives enabled = user-
defined defaults
L4450A 64-Bit Digital I/O w/Memory and Counter
I/O ports = Input
Count = 0
Trace memory = cleared
L4451A 4-Channel Isolated D/A Converter
w/Memory
DACs = 0Vdc
Trace wavforms = cleared
L4452A Multifunction with Digital I/O, D/A,
Totalizer
DIO Ports = Input
Count = 0
DACs = 0Vdc