User's Manual

GDK-20W DIGITAL WIRELESS KEY TELEPHONE SYSTEM
14
Table 2.3.4 Electrical Specifications
Item 22 AWG Wire 24 AWG Wire
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)
Table 2.3.5 CO Loop Specifications
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%
Table 2.3.6 Miscellaneous Specifications
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