Base Matrix Configuration 2
Keysight 34934A User’s Guide 99
34934T-001 Terminal Block: 4x128 Jumper Configuration
This terminal block has three types of jumpers which must be set to configure the
4x128 matrix (matrices):
– CONFIG Jumpers: place these 2-pin jumpers identically on all four 4x2 blocks
of jumper pins located near the board’s female D-Sub connectors, as shown.
– ID Jumpers: place these 2-pin jumpers on a 2x3 block of jumper pins on the
lower right corner of the board, as shown.
– Safety Interlock Continuity Jumpers: place the supplied pre-wired
terminators or equivalent custom wiring on the two 20-pin extension headers
at the bottom of the terminal block, as shown.
Placing CONFIG Jumpers for 4x128
The CONFIG jumper area—shown below
with jumpers removed— includes an illustration (on the 4x128 removable overlay)
that shows jumper placement for setting a 4x128 matrix configuration.
There are two 4x2 blocks of CONFIG JUMPER pins on each side of the board’s
center—you must set all four blocks identically.
In a high temperature-high humidity environment, salt and oil contaminants
transferred from the fingertips to the moveable CONFIG jumpers can affect the
34934A’s published DC Isolation specification if adjacent jumpers are in physical
contact with each other. In applications where DC (channel to channel) isolation >
10 GΩ is required, use clean cotton gloves when handling the CONFIG jumpers.
If cotton gloves are not available, clean the plastic jumper surfaces using a
cotton cloth and 91% isoprolyl alcohol after handling.
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