LG GDK-20W - Manual (Page 26)

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM
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RGU Installation
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.
Figure 3.4.5 RGU Installation
MFB Installation
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.
Figure 3.4.6 MFB installation