RadioFrame Networks Inc DH2 User Manual

Page of 164
RadioFrame System 
Pre-Installation 
RFN_3.1 Beta
  
55 
connects and patch cords. Of the 10 m (32.8 ft.) allowed for equipment cords, 
cross-connects and patch cords, a maximum of 3 m (9.8 ft.) should be used from 
the computer workstation to the information outlet. Refer to ANSI/TIA/EIA-568-A 
and CSA-T529 for more information. 
For simplifying installation and reducing cable runs, a single CAT 5 cable may be 
run from the equipment room hub to an additional hub in the computer 
workstation area for distribution to the individual computers. This can reduce the 
number of cables required between the equipment room and the individual 
computers. Refer to ANSI/TIA/EIA-569-A for more information. 
If cable segments need to be extended beyond 100 m (328 ft.), an additional hub 
may be installed. Each individual segment between hubs shall not exceed 100 m 
(328 ft.). Note that no more than the one intermediate hub shall be used. If the 
required distance is greater than, a specific cabling system shall be engineered. 
Refer to ANSI/TIA/EIA-569-A for more information. 
3.9.4.1 NEC 
Compliance 
All RadioFrame Networks products and equipment are NEC compliant. 
3.9.4.2 Local 
Jurisdictions 
Local jurisdiction codes shall apply and override any other requirements specified 
in this document. 
3.9.4.3 Routes 
Consideration should be given to using some method of cable management and 
containment for runs of CAT 5 cable. Such methods can be dedicated cable 
runs, lay-in wireways, cable runways and conduits. Refer to ANSI/TIA/EIA-569-A 
and CSA-T530 for more information.  
CAT 5 cable shall not be installed in the same conduit, cable runway, outlet box, 
or similar device with AC power cables, unless separated by a barrier as allowed 
in NFPA 70, Article 800-52. Doing so can be unsafe and is likely to cause EMI 
onto the CAT 5 cable, causing network errors. Refer to NFPA 70, Article 800-52, 
ANSI/TIA/EIA-568-A, and CSA-T529 for more information.  
Precautions should be taken to avoid routing CAT 5 cable near sources of 
EM/RFI. Such noise sources may be electrical power wiring, dimmer switches, 
radio frequency transmitters, motors, generators, and fluorescent lights. 
Precautions may include, increasing the physical distance between the CAT 5 
cable and the source of the EMI/RFI, installing the CAT 5 cable inside of a 
grounded metallic conduit, or use of a CAT 5100-ohm screened twisted pair 
cable as permitted by ANSI/TIA/EIA-568-A. Routing cables near sources of 
EMI/RFI can cause data errors and degraded system performance. Refer to 
ANSI/TIA/EIA-568-A and CSA-T529 T530 for more information.