LG Electronics Telephone LKA 200 User Manual

Issue 1 Jan 2006  
LKA-200  
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PRODUCT SPECIFICATION  
LKA-200 SINGLE LINE TELEPHONE  
DISTRIBUTION:  
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Engineering team  
QA team  
Manufacturing team  
Documentation  
Customer Service  
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Issue 1 Jan 2006  
LKA-200  
_________________________________________________________________________________________________  
Ringer melody and volume control- The Ringer Melody and volume can  
be adjusted by user. There are three different melodies with high, medium,  
low and off sound level. See section 5.0 for programming procedure.  
4.0HARDWARE REQUIREMENTS  
Each telephone model is comprised of the following major components:  
-
-
-
-
-
Baseset  
Handset  
Handset cord  
Line cord  
User manual  
5.0 PROGRAMMING PROCEDURE  
Follows these instructions to program the ringer melody and sound volume:  
1. Lift the handset.  
2. Press P/M button then you can hear beep sound at handset, during this  
stage your telephone will be automatically muted.  
3. Then press ‘#’ button follow by the single number digits to program Ringer  
melody and sound volume as the follows:  
‘1’ Melody 1, Volume Low  
‘2’ Melody 1, Volume Medium  
‘3’ Melody 1, Volume High  
‘4’ Melody 2, Volume Low  
‘5’ Melody 2, Volume Medium  
‘6’ Melody 2, Volume High (default)  
‘7’ Melody 3, Volume Low  
‘8’ Melody 3, Volume Medium  
‘9’ Melody 3, Volume High  
‘0’ Ring sound off  
Remark: If digit ‘0’ is programmed, the tone ringer will be turned off until next  
off-hook where it will automatically return back the last setting before 0.  
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Issue 1 Jan 2006  
LKA-200  
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6.0  
ELECTRICAL CHARACTERISTICS  
6.1TRANSMISSION CHARACTERISTICS  
6.1.1 Loudness Rating  
Transmit, receive and sidetone objective loudness ratings shall be determined in  
accordance with the requirements of TBR21 standard. Data measure in term of  
separate numerical ratings for transmit (TOLR), receive (ROLR), and sidetone  
(SOLR) for each of the following line conditions.  
TBR 21  
TOLR  
ROLR  
SOLR  
Items  
Lower  
Upper  
- 1  
Lower  
Upper  
- 12  
Lower  
Upper  
7
7
10  
- 4  
- 4  
- 1  
5
10  
7
-
-
-
2800  
1000   
500  
- 1  
- 1  
- 12  
- 12  
6.1.2 Telephone noise  
Required result: Less than - 60 dB for all conditions.  
6.1.3 Receiver noise  
Required result: Less than - 85 dB for all conditions.  
6.2NETWORKING SIGNAL CHARACTERISTICS  
6.2.1 DTMF Level  
DTMF Level generated for each of the two fundamental frequencies under 900  
ohm termination at loop current of 20 mA.  
Required results:  
High-frequency component  
Low-frequency component :  
:
-6.5 ~ -10.5 dBm.  
-8.5 ~-12.5 dBm.  
6.2.2 DTMF Difference (Twist)  
The different DTMF level between low frequency component and the high  
frequency component. Required result: 2 + 1dBm.  
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Issue 1 Jan 2006  
LKA-200  
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6.2.3 Frequency Deviation  
The accuracy for each of the two fundamental frequencies compare to DTMF  
frequency table.  
Required result: Less than + 1.5 %  
6.2.4 DTMF Signal Duration  
Required results:  
Signal duration time: More than 65 ms  
Inter-digit time  
:
More than 65 ms  
6.2.5 DTMF Total Harmonic Distortion  
Required result: Less than 20 dB at 20 mA current condition.  
6.2.6 Pulse dialing (option)  
Required results:  
Pulse speed  
:
10 + 0.8 pulse per second  
Make / Break ratio : 40:60 + 3 % for OJ23 (33:66 for OJ12)  
Break resistance: More than 200kohm  
Interdigit pause  
:
More than 600 ms  
6.2.7 Flash time  
Required results: 100, 300, 600 ms (depends on flash jumper option).  
6.3DC CHARACTERISTICS  
6.3.1 On-hook DC resistance  
Required result: More than 5 Mohm at 200 V dc.  
6.3.2 Off-hook DC resistance  
Required result: Less than 8 V at 20 mA  
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Issue 1 Jan 2006  
LKA-200  
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6.4DC CHARACTERISTICS  
6.4.1 on-hook AC impedance  
Required result:  
f < 200 Hz : More than 25 kohm  
697 < f < 1,633 Hz : More than 80 kohm  
f > 3,200 Hz : More than 60 kohm  
6.4.2 off-hook AC impedance  
Required result: 400 ~ 1,400 ohm  
6.4.3 Return Loss  
Required result: More than 10 dB through frequency range 200 ~ 3,200 Hz  
6.5CALL ALERTING CHARACTERISTICS  
6.5.1 Minimum Ring Start Voltage  
Required result: 20 ~ 40 Vrms at 20 Hz (typical 27 Vrms)  
6.5.2 Ring sound level  
Required result: (at distance 50 cm for ring signal 20 Hz 70 Vrms)  
Maximum level : more than 70 dBspl.  
6.5.3 Message Waiting Indicator  
Required result: Minimum level 70 Vdc for MWI operation.  
6.6RELIABILITY TEST  
6.6.1 Temperature test  
Required result:  
No operation error occurs during each condition;  
1) Setup chamber in 00C for 12 hours  
2) Setup chamber in 400C at R.H. 85% for 12 hours  
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