LG GDK-20W User Manual

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM     
 

 

 

The RGU generates 25Hz square wave ring signal. 

The RGU is installed to connector, CN23, of the MBU and generates 75Vrms ring signal that can be applied to the two(2) 
SLTs simultaneously. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

 
The RS-232C of MFB board is used for the function of system maintenance, PC based Admin, SMDR print local software 
up-grade. 
The Followings are the list of the system’s output. 
   -. Administration data base 
   -. Off-Line SMDR(on-demand) 
   -. On-Line SMDR 
   -. Statistical Information 
   -. System Trace data 
 
The installation method is shown in Figure 3.4.6.