JC INFORMATION SYSTEMS CORPORATION
286-12/16/20 MODEL 1080 VER 1.1C
|
Processor |
80286 |
|
Processor Speed |
12/16/20MHz |
|
Chip Set |
C & T SCAT |
|
Max. Onboard DRAM |
4MB |
|
Cache |
None |
|
BIOS |
C & T |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
8-bit factory test card slot |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Turbo LED |
J4 |
|
Power LED & keylock |
J2 |
External battery |
J6 |
|
Reset switch |
J3 |
8-bit factory test card |
S1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
CMOS memory normal operation (internal battery) |
J5 |
pins 2 & 3 closed |
|
CMOS memory normal operation (external battery) |
J5 |
Open | |
|
CMOS memory clear |
J5 |
pins 1 & 2 closed | |
| » |
Monitor type select color |
J7 |
Closed |
|
Monitor type select monochrome |
J7 |
Open | |
|
DRAM CONFIGURATION | ||||||
|
Size |
U23, U27, U31, U35 |
U28 & U36 |
U4, U8, U13, U17 |
U9 & U18 |
U19-U36 |
U1-U18 |
|
512KB |
(4) 44256 |
(2) 41256 |
NONE |
NONE |
N/A |
N/A |
|
1MB |
(4) 44256 |
(2) 41256 |
(4) 44256 |
(2) 41256 |
N/A |
N/A |
|
2MB |
N/A |
N/A |
N/A |
N/A |
(18) 411000 |
NONE |
|
4MB |
N/A |
N/A |
N/A |
N/A |
(18) 411000 |
(18) 411000 |