| ADDS Viewpoint 3A |
|---|
| Manufacturer |
ADDS |
|---|
| Model |
Viewpoint 3A |
|---|
| Lifetime |
|---|
| Introduced |
February, 1982 |
|---|
| Communication |
|---|
| Interface |
RS-232C |
|---|
| Baud Rates |
110, 300, 1200, 2400, 4800, 9600, 19200 |
|---|
| Display |
|---|
| Refresh Rates |
50 Hz, 60 Hz |
|---|
The ADDS Viewpoint 3A terminal was introduced in February, 1982 at the same price as a standard Viewpoint at the time.[1]
| Rear Panel Switch Settings[2]
|
| Switch #
|
Name
|
Setting
|
Function
|
| S1-1,2,3 |
Data Rate (bps) |
000 |
110
|
|
|
001 |
300
|
|
|
010 |
1200
|
|
|
011 |
1800
|
|
|
100 |
2400
|
|
|
101 |
4800
|
|
|
110 |
9600
|
|
|
111 |
19200
|
| S1-4 |
Auto Scroll |
0 |
Disabled
|
|
|
1 |
Enabled
|
| S1-5 |
Auto Line Feed |
0 |
Disabled
|
|
|
1 |
Enabled
|
| S1-6 |
Line Mode |
0 |
Half Duplex
|
|
|
1 |
Full Duplex
|
| S1-7,8 |
Parity |
00 |
Odd
|
|
|
01 |
Even
|
|
|
10 |
Marking
|
|
|
11 |
Spacing
|
| Internal Switch Settings
|
| Switch #
|
Name
|
Setting
|
Function
|
| S2-1 |
Character Display |
0 |
Light on dark
|
|
|
1 |
Dark on light
|
| S2-2 |
Parity Error |
0 |
Disabled
|
|
|
1 |
Enabled
|
| S2-3 |
Screen Refresh |
0 |
60 Hz
|
|
|
1 |
50 Hz
|
| S2-4 |
Mode |
0 |
3A Mode
|
|
|
1 |
3A Plus Mode
|
| S2-5 |
Clear Screen (CTRL-Z) |
0 |
Enabled
|
|
|
1 |
Disabled
|
| S2-6 |
Space/Adv |
0 |
Disabled
|
|
|
1 |
Enabled (not used in 3A+ mode)
|
| S2-7 |
Cursor |
0 |
Steady
|
|
|
1 |
Blinking
|
| S2-8 |
Cursor |
0 |
Block
|
|
|
1 |
Underline
|
References
