Agilent Technologies 34980A User Manual

220 34980A User’s Guide
8 Microwave Switch/Attenuator Driver
LED Drive
The distribution boards contain a ribbon cable header you can use to
connect LEDs to provide a visual indication of switch state. These lines
reflect the state of their corresponding channel’s position indicator. Some
systems use LEDs as a graphical indicator of switch positions.
Use the
ROUTe:RMODule:BANK:LED:DRIVe:LEVel command to set the drive
current for the LEDs. You do not need to provide an external current
limiting resistor. This command uses special channel addressing as
described in “Remote Module Identifiers” on page 214.
Once the drive current is set, enable the LED drives using the
ROUTe:RMODule:BANK:LED:DRIVe:ENABle command. This command uses
special channel addressing as described in “Remote Module Identifiers” on
page 214.
Simplified connections for the position indicators are shown in the
diagrams beginning on page 254.
NOTE
The LEDs obtain their power from the remote module power supply. If the
ROUTe:RMODule:DRIVe:SOURce OFF command has been sent, the
LEDs will not operate.

Agilent Technologies 34980A Specifications

General

Brand	Agilent Technologies
Model	34980A
Category	Switch
Language	English