Digital Voice Systems VC-20-ATC-10B, Руководство пользователя

Страница: 17 / 31

Section 6 – VC-20™ ATC-10b Vocoder Board Advanced Features
VC-20

ATC-10b Vocoder Board User’s Manual
page 7
The Speech Compression Specialists
D
IGITAL
V
OICE
S
YSTEMS,
I
NC.
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 Dir Description
VCC Pwr. D5v +/- 5%
GND Pwr. Digital Ground
+5v Pwr. 5v +/- 10%
-5v Pwr. Analog -5v +/- 10%
GND Anlg Pwr. Analog Ground
TXD3 O Transmit data channel
TXD2 O Transmit data channel
TXD1 O Transmit data channel
TXD0 O Transmit data channel
TXCK I Transmit data bit clock (4.8kHz.)
FMEN I Encoder frame flag (Active High)
RXD3 I Receive data channel
RXD2 I Receive data channel
RXD1 I Receive data channel
RXD0 I Receive data channel
RXCK I Receive data bit clock (4.8 kHz)
FMDE I Decoder frame flag (Active High)
VFRO O Analog speech output signal
VRXI I Analog speech input signal
RUN O Run Status Signal (Active High)
RESX O Internal Reset Status (Active Low)
DINRS I Reset Signal (Active High)
VAD I Voice/Silence Detection Enable (Active Low)
DTMF_DAT O DTMF Tone Data
DTMF_DET O DTMF Tone Detected Flag (Active High)
GO I Encoder Voice Mode (Active High)