Dialogic D/120JCT-LS Specifiche tecniche - Pagina 5
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D/120JCT-LS Media Board
®
Frequency Response
24 kbit/s
32 kbit/s
48 kbit/s
64 kbit/s
Audio Digitizing
13 kbit/s
24 kbit/s
32 kbit/s
32 kbit/s
48 kbit/s
64 kbit/s
Digitization selection
Playback speed control
DTMF Tone Detection
DTMF digits
Dynamic range
Minimum tone duration
Interdigit timing
Twist and frequency variation
Noise tolerance
Cut-through
Talk-off
Global Tone Detection
Tone type
Maximum number of tones
Frequency range
Maximum frequency deviation
Frequency resolution
Timing
Dynamic range
300 Hz to 2600 Hz ±3 dB
300 Hz to 3400 Hz ±3 dB
300 Hz to 2600 Hz ±3 dB
300 Hz to 3400 Hz ±3 dB
GSM 6.10 @ 8 kHz sampling
4-bit OKI ADPCM @ 6 kHz sampling
4-bit OKI ADPCM @ 8 kHz sampling
G.726 @ 8 kHz sampling
G.711 µ-law PCM @ 6 kHz sampling
G.711 µ-law PCM @ 8 kHz sampling
Selectable by application on function call-by-call basis
Pitch controlled
Available for 24 kbit/s and 32 kbit/s data rates
Adjustment range: ±50%
Adjustable through application or programmable DTMF control
0 to 9, *, #, A, B, C, D per Telcordia LSSGR Sec 6
–38 dBm0 to –3 dBm0 per tone, configurable by parameter**
40 ms, can be increased with software configuration
Detects like digits with a >40 ms interdigit delay
Detects different digits with a 0 ms interdigit delay
Meets Telcordia LSSGR Sec 6 and EIA 464 requirements
Meets Telcordia LSSGR Sec 6 and EIA 464 requirements for Gaussian, impulse, and power line noise tolerance
Local echo cancellation permits 100% detection with a >4.5 dB return loss line
Detects less than 20 digits while monitoring Telcordia TR-TSY-000763 standard speech tapes
(LSSGR requirements specify detecting no more than 470 total digits)
Detects zero (0) digits while monitoring MITEL speech tape #CM 7291
Programmable for single or dual
Application-dependent
Programmable within 300 Hz to 3500 Hz
Programmable in 5 Hz increments
± 5 Hz. Separation of dual-frequency tones is limited to 62.5 Hz at a signal-to-noise ratio of 20 dB
Programmable cadence qualifier, in 10 ms increments
Programmable, default set at –6 dBm0 to –3 dBm0 per tone
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Datasheet
JCT Media Boards