DATA TECHNOLOGY CORPORATION
DTC520DB
|
Data Bus |
SASI |
|
Card Size |
146 x 203mm |
|
Hard Drives Supported |
Two ST506/412-MFM devices |
|
Floppy Drives Supported |
Four 360KB drives |
|
CONNECTIONS | |||
|
Function |
Label |
Function |
Label |
|
50-pin SASI connector - to SASI controller |
J1 |
20-pin hard drive data cable |
J4 |
|
34-pin hard drive control cable |
J2 |
34-pin cable connector - floppy drive |
J7 |
|
20-pin hard drive data cable |
J3 |
4-pin DC power in |
J10 |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
|
SASI bus terminated |
T1 |
Installed | |
|
SASI bus not terminated |
T1 |
Not installed | |
|
SASI bus parity enabled |
W1 |
Pins 1 & 2 closed | |
|
SASI bus parity disabled |
W1 |
Pins 2 & 3 closed | |
|
Logical Unit Number 0 is assigned to hard drive |
W5 |
Open | |
|
Logical Unit Number 0 is assigned to floppy drive |
W5 |
Closed | |
|
Logical Unit Number 1 is assigned to floppy drive |
W6 |
Closed | |
|
Logical Unit Number 1 is assigned to hard drive |
W6 |
Open | |
|
Factory configured - do not alter |
W7 |
Closed | |
|
Factory configured - do not alter |
W8 |
Closed | |
|
Motor On signal normal |
W14 |
Open | |
|
Motor On signal forced high |
W14 |
Closed | |
|
Floppy drive not always considered ready |
W15 |
Open | |
|
Floppy drive always considered ready |
W15 |
Closed | |
|
Factory configured - do not alter |
W31 |
Open | |
|
Factory configured - do not alter |
W32 |
Pins 1 & 2 closed | |
|
SASI BUS ADDRESS SELECTION | |||||||||
|
Setting |
W0/A |
W0/B |
W0/C |
W0/D |
W0/E |
W0/F |
W0/G |
W0/H | |
|
0 |
Closed |
Open |
Open |
Open |
Open |
Open |
Open |
Open | |
|
1 |
Open |
Closed |
Open |
Open |
Open |
Open |
Open |
Open | |
|
2 |
Open |
Open |
Closed |
Open |
Open |
Open |
Open |
Open | |
|
3 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Open | |
|
4 |
Open |
Open |
Open |
Open |
Closed |
Open |
Open |
Open | |
|
5 |
Open |
Open |
Open |
Open |
Open |
Closed |
Open |
Open | |
|
6 |
Open |
Open |
Open |
Open |
Open |
Open |
Closed |
Open | |
|
7 |
Open |
Open |
Open |
Open |
Open |
Open |
Open |
Closed | |
|
SECTOR SIZE SELECTION | |||
|
Setting |
W3 |
W4 | |
|
128 bytes |
Open |
Open | |
|
256 bytes |
Closed |
Open | |
|
512 bytes |
Open |
Closed | |
|
1024 bytes |
Closed |
Closed | |