IBM design recommendations

Edit online
The following list outlines IBM®'s basic design recommendations:
  • Minimum of 10% spare fibers between distribution points for maintenance
  • The use of physical-contact connectors
  • Single Mode fiber installed for trunk cabling, if future need or long-distance links are foreseen
  • A conduit system with interduct and pull-cords for future expansion
  • Sufficient trunk fibers to accommodate short-term growth and migration.
Note: One way to determine the quantity of spare fiber for growth is to increase the planned quantity by 30%. If the future applications are unknown, plan multimode so that loss does not exceed 5 dB at 1300 nm. This level of loss will accommodate all current applications and leave a margin for future applications that may have more stringent attenuation requirements than those that are currently available.