National Instruments PXI-8109 User manual

INSTALLATION GUIDE
NI PXI-8109 and NI PXIe-8133
Flex Cable Replacement
This guide describes how to install the flex cable replacement for the
NI PXI-8109 and NI PXIe-8133 embedded controllers. For more detail and
a video demonstration of the cable replacement, please visit ni.com/info
and enter the Info Code 8133FlexReplace.
The flex cable can be replaced by hand. No tools are needed and the
controller does not need to be disassembled. Perform the following steps
for installation and removal instructions.
1. Locate the single-ended board to board flex cable on your
NI PXI-8109 or NI PXIe-8133 embedded controller as shown below in
Figure 1.
Figure 1. View of the Controller Back End with Board to Board Flex Cable
Caution Touch the metal part of the case to discharge any static electricity that might be
on your clothes or body.
1 Board to Board Flex Cable
1

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2. Remove the existing cable by completing steps a and b below.
Caution Do not put pressure on additional components near the connector or scrape the
connector against components while removing the cable.
a. Gently remove by hand (no tools necessary) both sides of the
cable from the mating connectors on the two boards of the
controller.
1. Disconnect one side of the flex cable from its mating
connector.
2. Straighten the cable after disconnecting the first side.
3. Disconnect the second side of the flex cable from its mating
connector.
b. Discard the old cable.
3. Install the new cable.
a. The replacement cable will be flattened when it arrives.
b. Each connector is keyed in a way to prevent improper installation.
c. Connect one side of the new flex cable to the appropriate keyed
connector on the controller.
d. Slowly bend the cable using large angles such that the second flex
cable connector is above the mating connector on the controller,
and make the connection.
Caution Tight bends or creases in the cable will damage its functionality.
e. Once both sides of the cable are in place apply moderate pressure
on both sides to ensure a good connection. Do not push on other
components in the process. You may need to gently push the
middle of the cable toward the inside of the controller to square up
the connectors on the board.
4. Verify the cable is installed correctly.
a. Install the controller into a chassis.
b. Power on the chassis.
c. Verify the controller boots properly.