Remove and Install the Torque Accuracy Module for Frames 8...15

Replace the torque accuracy module with the appropriate kit catalog number:
  • 20-750-MTAM1-CD (400/480V)
  • 20-750-MTAM1-EF (600/690V)
Follow these steps to remove and install the torque accuracy module.
  1. Review the product advisories in Before You Begin.
  2. Remove power from the system.
  3. Open the corresponding power bay enclosure door.
  4. Remove the right-most power module from the enclosure.
  5. IMPORTANT: The minimum inside bend radius for fiber-optic cable is 50 mm (2 in.). Any bends with a shorter inside radius can permanently damage the fiber-optic cable. Signal attenuation increases as inside bend radius is decreased.
    fiber-optic cable bend radius example
  6. Without bending the cable to a radius less than 50 mm (2 in.), remove the fiber-optic cable from the transceiver in the TAM port on the torque accuracy module.
  7. Open the transceiver latch and pull the transceiver out of the connector on the board. You can retain the transceiver as a spare part.
    TIP: If the latch is obstructed and you cannot use your fingers to open it, use a small, screwdriver or other long, narrow tool to open the latch.
    example of how to remove the fiber transceiver from a fiber-optic port
  8. Disconnect connector P1 from J1 on the torque accuracy module.
  9. Disconnect connector P2 from J2 on the torque accuracy module.
  10. Loosen the two upper M4 hex nuts and washers that secure the torque accuracy module panel to the mounting bracket.
  11. Remove the lower two M4 hex nuts and washers that secure the torque accuracy module panel to the mounting bracket and remove the module and panel.
    example of how to remove the toque accuracy module from a frame 7…15 product
  12. Remove the protective covers from connectors J1 and J2 on the new torque accuracy module.
    example of how to remove the protective covers from the connectors on the new toque accuracy module
  13. Install the torque accuracy module in the reverse order of removal.
  14. Remove the protective cover from the TAM port on the new torque accuracy module.
    example of how to remove the cover from the fiber-optic transceiver port with XT protection
  15. IMPORTANT: The end of the transceiver that connects to the inside of the fiber port contains dielectric grease. Do not touch the end of the transceiver.
  16. Remove the protective covers from the transceiver.
    example of how to remove the covers from the ends of a fiber-optic transceiver with XT protection
  17. Without bending the cable to a radius less than 50 mm (2 in.), fully insert the fiber-optic cable into the transceiver.
    example of how to insert a fiber-optic cable into a transceiver
  18. Insert the transceiver and fiber-optic cable into the port on the board, until you hear an audible ‘click.’
    example of how to insert a fiber-optic cable into a fiber-optic transceiver port
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