Ignals - Digital Voice Systems VC-20-ATC-10B User Manual

D V S
IGITAL OICE YSTEMS,
The Speech Compression Specialists
Rsvd. = RESERVED (Leave Unconnected)
Note: Many Reserved signals are used to monitor the internal state of the VC-20™ - ATC-10b. To
ensure proper operation all reserved signals must be left unconnected.
3.3 VC-20-ATC-10BConnector Signals
Name
VCC
GND
+5v
-5v
GND Anlg
TXD3
TXD2
TXD1
TXD0
TXCK
FMEN
RXD3
RXD2
RXD1
RXD0
RXCK
FMDE
VFRO
VRXI
RUN
RESX
DINRS
VAD
DTMF_DAT
DTMF_DET
GO
VC-20 ATC-10b Vocoder Board User's Manual
Section 6 – VC-20™ ATC-10b Vocoder Board Advanced Features
I
NC.
Dir Description
Pwr. Digital +5v +/- 5%
Pwr. Digital Ground
Pwr. Analog +5v +/- 10%
Pwr. Analog -5v +/- 10%
Pwr. Analog Ground
O Transmit data channel
O Transmit data channel
O Transmit data channel
O Transmit data channel
I Transmit data bit clock (4.8kHz.)
I Encoder frame flag (Active High)
I Receive data channel
I Receive data channel
I Receive data channel
I Receive data channel
I Receive data bit clock (4.8 kHz)
I Decoder frame flag (Active High)
O Analog speech output signal
I Analog speech input signal
O Run Status Signal (Active High)
O Internal Reset Status (Active Low)
I Reset Signal (Active High)
I Voice/Silence Detection Enable (Active Low)
O DTMF Tone Data
O DTMF Tone Detected Flag (Active High)
I Encoder Voice Mode (Active High)
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