- Up to 50,000 users
- Facilities up to 10 million square feet
- 90 meter horizontal distance limit between closet and desktop
- 4 pairs of conductors to each outletâ??all must be terminated
- 25-pair cables may not be used (crosstalk problems)
- May not use old wiring already in place
- Bridge taps and standard telephone wiring schemes may not be used
- Requires careful installation procedures
- Requires extensive testing procedures