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34946A and 34947A Dual/Triple Microwave Switch Modules
The 34946A module (Options 004, 020, 026) has two independent Agilent
N1810TL switches. These terminated 3-port 50-ohm switches are designed to
maintain impedance matching. The 34947A module (Options 004, 020, 026)
contains three independent Agilent N1810UL switches. These higher density
3-port switches are unterminated. For channel configuration on each module,
refer to the simplified schematics on
The 34946A and 34947A modules implement a verification (position
indication) feature, which senses the actual hardware state of the specified
channels following a
operation appears to have failed, an error will be generated at the time the
ROUTe:CLOSe
for each channel operation that did not properly verify. The verification
process will slow overall switching performance on the module.
34946A and 34947A Option 001 Installation
Option 001 to the 34946A and 34947A is a 30-pin ribbon connector to 9-pin
D-Sub connector cable kit. The option allows you to connect two (34946A) or
three (34947A) switches external to the instrument chassis.
N O TE
The steps for installing the cable assembly and 9-pin D-Sub connectors are as
follows:
1. Remove the 34946A or 34947A cover by removing the screw (T-10 torx) on
the top of the instrument (Figure 1).
CAU T ION
2. Insert the ribbon cable into the connector on the printed circuit board as
shown (Figure 1).
3. 34946A - Route the center and left 9-pin strands through the corresponding
slots of the instrument face plate (Figure 1). Cut the cable strands to the
desired length, or if necessary, the full length of the strands can be used.
Do not attach the D-Sub connector (Step 4) until the strands have been
routed through the face plate slots.
3. 34947A - Route the right, center, and left 9-pin strands through the
corresponding slots of the face plate as shown (Figure 1).
2
ROUTe:CLOSe
or
command is executed. An error will be generated
ROUTe:OPEN
34946A Option 001 and 34947A Option 001as purchased meet all safety and EMC
regulatory requirements. Any modifications or additions to the options and their
conformance to local regulatory requirements are the responsibility of the user.
Use care when handling the 34946A or 34947A chassis with the cover removed
as components within the chassis are susceptible to damage from ESD.
Agilent 34946A-34947A Microwave Switch/Driver Modules User's Guide
page
5.
or
operation. If a switch
ROUTe:OPEN
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