CPU or I/O Module replacementFigure 3-18:
A.CPU Module Type 2 - side label
B. CPU Module Type 4 - side label
4. Grasp the outer ends of the module you want to replace and pull it out of the
enclosure.
5. Insert the new CPU Module or I/O Module into the enclosure and firmly push until
the board is fully seated into the Backplane Board connectors and the lock is
engaged.
6. Replace the terminal blocks for the CPU Module and/or the Optional I/O Module and
tighten the flat head screws with a 3 mm flat blade screw driver.
7. If you are not replacing other electronics, replace the end caps and security latches
(requires a 3 mm Allen wrench). If required, install the security seal wire into and
through one of the two holes in the end cap. Choose holes that minimize
counterclockwise rotation of the end cap when the security wire is taut (maximum
wire diameter .078 inch; 2.0 mm).
Meter repairs
Maintenance and Troubleshooting manual 71
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