BUSLOGIC, INC.
BT-757D, BT-757S
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Data bus: |
32-bit, EISA |
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Size: |
Full-length, full-height card |
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Hard drive supported: |
Up to seven SCSI devices |
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Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, 1.44MB, or 2.88MB drives |
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CONNECTIONS | |
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Function |
Location |
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4-pin connector - drive active LED |
J1 |
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34-pin control cable connector - floppy drive |
J2 |
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50-pin SCSI connector - internal |
J3 |
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68-pin SCSI connector - internal |
J4 |
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68-pin SCSI connector - external |
J5 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Termination power to 50-pin connector enabled |
W1 |
closed |
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Termination power to 50-pin connector disabled |
W1 |
open |
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Termination power to internal 68-pin conn. enabled |
W2 |
closed |
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Termination power to internal 68-pin conn. disabled |
W2 |
open |
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Termination power to external 68-pin conn. enabled |
W3 |
closed |
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Termination power to external 68-pin conn. disabled |
W3 |
open |
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Floppy drive enabled |
W8 |
closed |
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Floppy drive disabled |
W8 |
open |
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STATUS LED | ||
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LED |
Status |
Function |
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on briefly after start-up |
Self-test successful |
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LED1 |
blinking |
SCSI active |
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3 blinks, pause, 3 blinks sequence |
Searching for SCSI device |
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MISCELLANEOUS TECHNICAL NOTES |
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BT-757D is a differential SCSI controller. Terminators RP2, 4, 6, 8, 10, and 12 contain 150ohm resistors. Terminators RP3, 5, 7, 9, 11, and 13 contain 330ohm resistors. BT-757S is shipped with three resistor packs on-board, at the same locations as RP6, 7, and 13. Each pack contains 110ohm resistors. |