LG-Nortel SINGLE LINE TELEPHONE LKA-200 Product Specification page 5

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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 :
Inter-digit time
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
Make / Break ratio :
Break resistance :
Interdigit pause
6.2.7 Flash time
Required results:
6.3 DC 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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More than 65 ms
: More than 65 ms
: 10 + 0.8 pulse per second
40:60 + 3 % for OJ23 (33:66 for OJ12)
More than 200kohm
: More than 600 ms
100, 300, 600 ms (depends on flash jumper option).
5
Issue 1 Jan 2006
LKA-200