
CHATTANOOGA
GROUP INC.
20
US Address Line 0
Input
Digital
21 Ground
22
US Address Line 1
Input
Digital
23 Ground
24 No
Connection
25 Ground
26 No
Connection
27 Ground
28 No
Connection
29 Ground
30
US Strobe
Input
Digital Active Low
31 Ground
32
US Board Enable
Input
Digital Active Low
33 Ground
34
US Read/Write
Input
Digital Active Low
35 Ground
36 No
Connection
37 Ground
38
US Control Circuitry
Power Down
Input Digital
39 Ground
40
US Amplifier Power
Down
Input Digital
J2 Ultrasound
Generator Board
Pin #
Signal Name
Type
1
DC Power Input
Input
8-18 VDC
2
DC Power Input
Input
8-18 VDC
3 Ground
4 Ground
J3 Ultrasound
Generator Board
Pin #
Signal Name
Type
1
US Generator Output
Output
0-50V, 1-3 MHz Sine
Wave
2 Ground
3 Calibration
Read/Write
OR
Ground
Bi-Directional
5V Digital During
Read
12V Digital During
Write
4 Ground
Innovation starts here
TM
18
Intelect
®
Legend Series Service Manual