Issue 1 Jan 2006
LKA-200
_________________________________________________________________________________________________
PRODUCT SPECIFICATION
LKA-200 SINGLE LINE TELEPHONE
DISTRIBUTION:
Sales & Marketing
Engineering team
QA team
Manufacturing team
Documentation
Customer Service
1 copy
1 copy
1 copy
1 copy
1 copy
1 copy
_____________________________________________________________________________
1
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.
_____________________________________________________________________________
3
Issue 1 Jan 2006
LKA-200
_________________________________________________________________________________________________
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.
_____________________________________________________________________________
4
Issue 1 Jan 2006
LKA-200
_________________________________________________________________________________________________
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
_____________________________________________________________________________
5
Issue 1 Jan 2006
LKA-200
_________________________________________________________________________________________________
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
_____________________________________________________________________________
6
|