RadioFrame Networks Inc DH2 User Manual

Method of Procedure 
Pre-Installation 

RFN_3.1 Beta

 

AC power cords longer than necessary may be looped down and back up a

 

rack 

or cabinet. Excess lengths of AC power cord shall not be coiled on top of racks or 
cabinets. 

Grounding conductor tap joints shall be installed in order to prevent the 
conductor or connection device from coming in contact with metallic surfaces. 

Where cables or conductors are routed through holes in metallic surfaces or near 
sharp edges, the sharp surfaces shall be suitably protected with a grommet or 
similar material to help protect the cable or conductor from damage caused by 
sharp edges. 

Grounding conductors of all sizes shall maintain a minimum bending radius of 8 
in. (20 cm). The angle of any bend shall be not less than 90°. 

The bending radius of CAT 5 cables shall be not less than 10 times the outside 
diameter of the cable. Follow the cable manufacturer's recommendation and refer 
to ANSI/TIA/EIA-568 and CSA-T529 for additional information. 

All other cables shall not have sharp bends that will damage or degrade the 
performance of the cable. The cable manufacturer's specifications shall be 
followed. 

Cabling in racks or cabinets shall be grouped according to function. 

Cable groups within racks and cabinets shall be separated by a minimum of  
2 in. (5.1 cm) from other cable groups. Refer to ANSI/TIA/EIA-568a and -569; 
and NFPA 70, Articles 800-52, 810-18, and 820-52 for more information. 

All alarm wires shall be tagged and labeled with the appropriate alarm item. 

All 

contacts will be normally closed, dry, and isolated from ground. Alarm wire will be 
neatly run and secured using nylon cable ties/clamps every three feet to walls 
and existing cable tray. All alarm wiring shall be two-wire, 22 AWG. 

Up to seven remote ACUs may be installed for a total of 8 ACUs per NCU.