RadioFrame Networks Inc DH2 User Manual

RadioFrame System 

RFN_3.1 Beta

246 

 

minor rectifier failure 

247 

 

major rectifier failure 

The T1 surge arrestor must be adequately grounded as outlined in the Quality 
Standards Fixed Network Equipment - Installation Manual (R56). The surge 
arrestor usually mounts near the demarcation (demarc) point. The cable 
connecting the surge arrestor to the Telco SmartJack should be locally procured, 
or should be provided with the surge arrestor. The cable connecting the iSC-3 to 
the surge arrestor is locally procured.  

All antenna feed lines should terminate with a suitable surge arrestor within 12” 
inside of the entry window. Each arrestor must connect to the master ground bar 
located below the entry plate. It is recommended that the arrestors be mounted 
to a mounting bracket to simplify grounding and cable installation. 

An RFN customer-approved surge arrestor must be installed adjacent to the AC 
power panel. Very short wire lengths between the arrestor and the power panel 
are required for proper operation of equipment. 

Within the site, ground the main rack with a single dedicated connection between 
the main rack and the master ground bar. The connecting wire must be a #2 
AWG green-insulated copper wire. 

Use appropriate lugs (and split ring lock washers when possible) with an anti-
oxidant grease applied for interior grounding connections and exterior secondary 
grounding connections. If lock washers are used, they should be placed between 
the nut and the lug to ensure the mechanical integrity of the connection. The 
washer must not be secured between the lug and the surface to which it is 
connected. Painted connections must be scraped clean before applying the anti-
oxidant grease and lug. 

The main rack (ground bus) must be connected to the site ground using a single 
dedicated ground wire.