VC-55™ PR Voice Codec Board
(Preliminary)
User's Manual
J10
Power
RS-232
J11
Digital I/O
Figure 2 VC-55™- PR Vocoder Board Top
Item
Name
J6
Serial Port
J3
USB*
J2
Analog Line In
J1
Analog Line Out
J5
Handset
J10
DC Line In
Table 2 Top Panel Connectors
Connecting DC Power
The user must supply the VC-55™-PR Vocoder Board with a 5 V digital power supply There are no user
settings. Just plug in the 5V DC 250ma power source into the DC power receptacle on the board
receptacle (See Table 2 Top Panel Connectors item 9). DVSI offers an optional accessories kit that
contains a AC to DC converter for the VC-55™-PR Vocoder Board.
+5Volts
DC Ground
Figure 3 Power Input Connection
The OEM version of the board has the Power connections located on J11. The board will operate with
either 3.3 V DC or 5.0 V DC as shown in the following table:
5.0 V DC Power
Pins
6,8
1, 3, 5, 7, 13, 14,
21, 22 ,29 ,30
Note: Do not apply both the 5V DC and 3.3 V DC power at the same time.
DVSI Confidential Proprietary
J6
Handset
J3
USB
Board Top Connections
Connector Type
RJ-45
Type Mini-B Receptacle
3.5mm Audio Jack
3.5mm Audio Jack
RJ-11
Power Receptacle
Bottom Connector J11
Name
or
5.0 V DC Input
Digital Ground
J5
J2
J1
Audio
Audio
Out
In
J7
Analog Audio I/O
Description
Channel Data
Control / Program / File IO
Audio from Line In
Audio out to Spkrs / amp
Full Duplex Communication
5 Volts DC
3.3 V DC Power
Pins
2,4
1, 3, 5, 7, 13, 14, 21,
22 ,29 ,30
Section 2 – Installation
Name
3.3 V DC Input
Digital Ground
Page 5
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