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48 L4400 User’s Guide
3 Operating and Programming
L4400 Instrument Front Panel Overview
LXI instruments within the the L4400 family consist of the instrument
carrier, an instrument sub- assembly, and if applicable, a wiring terminal
block. The front panel of an L4400 instrument is shown in Figure 3- 1.
Figure 3-1. L4400 Instrument Front Panel (L4421A shown).
The only time it is necessary to remove the instrument sub- assembly from the
carrier is to attach a support sleeve to those sub-assemblies that use a wiring
terminal block.
Chapter 1 contains information for removing the sub- assembly from the
carrier and attaching the sleeve.
The LAN Reset Button
The LAN reset button allows you reset the instrument’s LAN configuration to
its default state. Refer to “LAN Reset (Default) Configuration” in Chapter 2
for a listing of the default settings.
The Front Panel LEDs
The front panel LEDs:
ATTN
LAN
PWR
provide information on the status of the instrument. Table 3- 1 lists the
instrument’s status conditions based on the color and functioning of the
LEDs.
Instrument sub-assembly
Instrument carrier
Power
LAN Reset