STANDARDS & FORMULAS
Data & Telephone
Data and telephone outlets numbered on their rack, each rack’s units worked out, the racks and schematic drawn.
Standards and regulations
- ISO/IEC 11801 · TIA-568Structured cabling
The 90 m horizontal cable limit each outlet’s cable is checked against.
Design rules it applies
- Patch panels of 24 ports and switches of 48 ports, with the spare; voice panels, fibre from the main rack, PDU and UPS
- Main rack (MDF) 42U, a floor’s rack (IDF) 12U - the next size or two racks when it needs more
- Numbering: IDF-1/DA01, IDF-1/TL01
For reference. MO.tool works these out to help your design; the engineer remains responsible for it. Always check the edition of each standard your project uses and the requirements of the local authority (DEWA, ADDC, Civil Defence…).