RuggedCom RS900 Manual Do Utilizador

RS900 Family Installation Guide 
 

 
The Ethernet over VDSL (EoVDSL) port operates in pairs with one unit configured as the Master 

and the other as the Slave. In VDSL literature the terms Central Office (CO) or Line Termination 
(LT) are used interchangeably for the Master and the terms Customer Premise Equipment (CPE) 

or Network Termination (NT) are used interchangeably for the Slave. The Master unit dictates the 
line configuration settings to the Slave so all EoVDSL configuration is done on the Master. Data 

flowing from the Master to the Slave is designated “downstream” while data flowing from the Slave 
to the Master is designated “upstream”. 

 
RuggedCom offers two flavours of VDSL: Universal EoVDSL and Long-Reach EoVDSL. Universal 

EoVDSL ports are Master/Slave selectable and offer symmetric data rates up to 35 Mbps with 
distances up to 2.5 km. Long-Reach EoVDSL ports are fixed as either Master or Slave but offer 

asymmetric data rates up to 40 Mbps with distances up to 5 km. The Universal and Long-Reach 

EoVDSL ports are physically indistinguishable from each other; however, you can determine which 
port you have either from the order code or through the software.  

 

VDSL typically operates over 2-wire Category 3 (CAT-3) unshielded twisted-pair (UTP) wiring; 
however, other categorized or uncategorized twisted-pair wiring will work although the performance 

will vary depending on the distance and cable characteristics. It is important that the wiring used 
does not have any open leads (also known as bridged taps or drop-lines) along its length because 

this will impact performance by degrading the signal.  

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