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DEFINITY Made Easy Tools
Issue 3, December 2001



Install Fiber Optic Cable Pass-Thru Kit (Single-Carrier Cabinets)

Install the Fiber-optic Cable with the Pass-thru Kit

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Caution! During the actual installation of fiber optic components, use either all beige or all blue adapters. Beige denotes multimode fiber and blue denotes single-mode fiber. Do not mix beige with blue.

  1. Snap the beige SC-SC fiber optic adapter onto the pass-thru tool. See Fiber optic adapter and pass-thru tool.

    2. Use the beige adapter even if single-mode fiber is being installed. The beige adapter is better suited for cable routing in the next steps.

    If single-mode fiber is being installed, the beige adapter will be replaced with a blue adapter later.

  2. From the front of the cabinet, insert the pass-thru tool into the opening between the bottom of the circuit packs and the circuit pack label. See Insert the pass-thru tool.

  3. Slide the tool to the rear of the cabinet.


Caution! Avoid bending fiber optic cables to a radius smaller than 1.5 inches (3.8 cm), to prevent mechanical stress on the cables.

  1. Attach the supplied fiber optic cable to the adapter.

  2. Pull the tool (with adapter and cable attached) out through the front of the cabinet. See Fiber Optic Cable and Adapter.

  3. Install the new circuit pack.

  4. Connect the fiber cable to the angled connector on the front of the new circuit pack. See Connect fiber cable to circuit pack, which shows an expansion interface circuit pack.


Note: For a duplicated system, use the pass-thru tool to bring 1 end of the cable to the front of each cabinet containing the duplication interface circuit packs. Connect the fiber cable to the duplication interface circuit pack in each carrier. Do not remove the I/O connector adaptor (referred to in steps 9 through 12 of this procedure). See Install fiber optic cable for duplicated SCC systems for illustrations of this process.

  1. Route the fiber optic cable through the opening vacated by the I/O cable connector plate.

  2. If necessary, remove the beige fiber adapter from the tool and plug the fiber optic cable into the SC-SC (single-mode) or SC-ST (multimode) adapter. See Bracket Attachments.

  3. From the front of the I/O connector adapter bracket (with fiber cable), snap the adapter into the supplied I/O connector adapter bracket.

  4. Snap the I/O connector adapter bracket into the I/O connector opening.

  5. Attach the outside fiber plant to the I/O connector on the rear of the cabinet.

  6. Wrap the cable disconnect label around the fiber optic cable. See Cable Disconnect Label.

    7. Avoid bending fiber optic cables to a radius smaller than 1.5 inches (3.8 cm), to prevent mechanical stress on the cables. Plan the use of cable ties to avoid crimping the cable or creating a fixed stress point where, at a later time, movement of the cable causes it to exceed the minimum bend radius.

  7. If a circuit pack was removed in the previous procedure to access 2 open slots, replace the circuit pack into its original slot.

  8. Replace the 2 perforated metal panels onto the rear of the cabinet. See Install the rear panels.

  9. Replace the front cover panel.

  10. Discard the pass-thru tool.

Fiber optic adapter and pass-thru tool

Figure Notes:
      1. Pass-thru Tool

      2. Beige SC-SC Fiber Optic Adapter

Insert the pass-thru tool

Fiber Optic Cable and Adapter

Connect fiber cable to circuit pack

Bracket Attachments

Figure Notes:
      1. Fiber cable

      2. I/O connector adapter bracket

      3. SC-SC adapter

      4. SC-ST adapter

Cable Disconnect Label

Install the rear panels

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