LG GDK-20W User Manual

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM     
 

 

 

Table 2.3.4 Electrical Specifications 

 

Item 

    Digital Keyset / Base station 

-. 2-wire loop 

  500 m (1.6K feet) 

    300 m (1K feet) 

2B modules(with Power Adapter,24Vdc/200mA) 

-. System – Primary Keyset 

-. Primary Keyset – Secondary Keyset 

-. Primary Keyset – Secondary SLT 

 

Refer to Installation Manual of   

2B-SLIU30/DTIU30 

 

2B modules(without Power Adapter) 

-. Primary Keyset – Secondary Keyset 

-. Primary Keyset – Secondary SLT 

Refer to Installation Manual of   

2B-SLIU30/DTIU30 

    Single Line Telephone 

  1,600 m (5.3K feet) 

1,000 m (3.3K feet) 

  Ring Detect Sensitivity 

@ 20-60 Hz, 38 Vrms 

 DTMF Dialing 

  -. Frequency Deviation 

  -. Signal Rise time 

  -. Tone Duration, on-time 

  -. Interdigit time 

 

less than 

±1% 

3 msec, maximum 

75 msec, minimum 

75 msec, minimum 

 Pulse Dialing 

  -. Pulse Rate 

  -. Break/Make Ratio 

 

10 pps   

60/40% or 66/33% 

 
 

Main System Memory 

 

Program Memory, 

(FLASH MEMORY) 

 

    Random Access Memory, SRAM 

  (Battery Backed-up) 

    1 Mwords Max.    PMU U1 : 512Kwords 

                                           

 

U2 : 512Kwords 

 

    512Kbytes Max. PMU U3 : 256Kbytes 

                      U4 : 256Kbytes