G-TEL Enterprises 505 Owner's Manual

Introduction to main functions:

1.) The 505 will charge & limit the call automatically based on the number dialed.
2.) The phone recognizes & rejects invalid coins.
3.) Tariff rate list is programmable.
4.) The 505 automatically distinguishes long distance calls, local calls and different area
codes and prefixes.
5.) Dialing 911 or other emergency calls are free.
6.) DTMF or PULSE lines can be used.
7.) Talk time for incoming calls is programmable.
8.) Eight groups of specific free speed dial telephone numbers can be programmed.
10.) Phone will restrict up to eight specific telephone numbers.

Operation Condition

1.) TEMPERATURE: -10 ~+ 40 C
RELATIVE HUMIDITY: 45% ~ 95%
ATMOSPHERIC PRESSURE: 86 ~ 106 Kpa
2.) USE VOLTAGE : LINE OF PBX 48VDC
LINE CURRENT: 18mA ~ 100mA
3.) LINE SIGNAL REQUIREMENTS:
Type of tone
Dial Tone
Ring back tone
Busy tone

Technical Parameters:

1.) PULSE DIALING PARAMETER:
SPEED: 10PPS
B/M RATIO IS 40: 60
2.) DTMF DIALING PARAMETER:
SENDING LEVEL FOR LOW GROUP FREQUENCIES ARE -9dBm ± 2dBm
SENDING LEVEL FOR HIGH GROUP FREQUENCIES ARE -7dBm ± 2dBm
3.) ELECTROACOUSTIC PARAMETER ( CCITT STANDARD), USER'S LINE MUST HAVE 5Km
LONG.
SLR: Less than 12 dB
4.) ALTERNATING IMPEDANCE: 600 Ω
G-TEL 505 Owners Manual
Cadences ( Seconds )
Continuous
0.6-1.0 on, 2.0-4.5 off
0.3-0.5 on, 0.3-0.5 off
RLR: Less than -1dB
Frequency
300-650
300-650
300-650
STM: above 10dB