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ST1830N.TXT
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1994-02-16
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SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
⁄ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¬ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ United States +1 408 438-8771 ≥ United Kingdom +44 628 478011 ≥
√ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ≈ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¥
≥ Germany +49 89 140-9331 ≥ Singapore +65 227-2217 ≥
¿ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
(C)opyright 1993
ST-1830N SCSI-2 Fast
…ÕÕÕÕÕÕÕÕÕÕÕª
∫ REAR VIEW ∫
»ÕÕÕÕÕÕÕÕÕÕÕº
50 pin I/O Cable Connection
≥
J1’ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ1∏ /ƒƒƒƒƒƒƒƒƒ\ TOP (HDA)
Õµ:::::::::::::::::::::::::ΔÕ≥ 0 0 0 0 ≥ÕÕ
‘ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕæ ¿ƒ5ƒGƒGƒ12Ÿ BOTTOM
1ƒƒƒƒƒƒø 1ƒƒƒƒƒƒø 1ƒƒƒƒƒƒø
¿ƒƒƒƒƒƒŸ ¿ƒƒƒ¬ƒƒŸ ¿ƒƒƒƒƒƒŸ
¿Terminating ResistorsŸ
…ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕª
∫ RIGHT SIDE VIEW ∫
»ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕº
BACK ’Õ∏ J2 12345678 TOP (HDA) FRONT
OF J1ΔÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕ OF
DRIVE ‘Õæ :::::::: BOTTOM DRIVE
≥≥≥≥≥≥≥≥
≥Terminator Power Ÿ≥≥≥≥≥≥¿ Reserved
⁄¥Terminator Power ƒŸ≥≥≥≥¿ƒ Start Delay (12 secs * ID)
≥ Factory Use ƒƒŸ≥≥¿ƒƒ Motor Start
≥ Parity Enable ƒƒƒŸ¿ƒƒƒ Write Protect
≥
≥
≥ ⁄ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒø
¿ƒ¥ Termination Power-source Table ≥
√ƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒ¡ƒƒƒƒƒƒƒƒƒƒƒƒƒø
≥ÕÕÕÕÕ....ÕÕÕÕÕ....ÕÕÕÕÕPWA edgeÕÕÕÕÕ ≥
≥ ≥
≥ 1 2 1 2 1 2 ≥
≥ ÷ƒ∑ ÷ƒ∑ A Drive Supplies Bus ≥
≥ ∫¯∫¯ ¯∫¯∫ ÷¯ƒ¯∑ B Drive Supplies Own ≥
≥ ”¯Ω¯ ¯”¯Ω ”¯ ¯Ω C Bus Supplies Drive ≥
≥ A B C ≥
¿ƒƒƒƒƒƒƒƒƒDefaultƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒƒŸ
…ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕª
∫ LEFT SIDE VIEW ∫
»ÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕº If these ID jumpers are used,
then ID jumpers shown in front
view ARE NOT USED.
FRONT TOP (HDA) J5 ’ÕÕ1∏ ’Õ∏BACK
OF ÕÕÕÕÕÕÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕµ:::ΔÕµJ1 OF
DRIVE BOTTOM ‘ÕÕÕæ ‘ÕæDRIVE
≥≥≥
Note: On early drives ≥ ID 1 ƒŸ≥¿ƒ ID 4
with PCB# 75782395 or ≥ ID 2
#75782485 ID jumpers are√ƒƒ ID 4 ID 1
reversed. ≥
…ÕÕÕÕÕÕÕÕÕÕÕÕª
∫ FRONT VIEW ∫
»ÕÕÕÕÕÕÕÕÕÕÕÕº
TOP (HDA) J6 ’ÕÕÕÕÕ1∏
ÕÕPÕWÕAÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕÕµ::::::ΔÕ
* BOTTOM ‘ÕÕÕÕÕÕæ
≥ 123456
LED ƒŸ ≥≥≥≥≥≥
ID 4 Ÿ≥≥≥≥¿ Reserved
ID 2 ƒŸ≥≥¿ƒ Remote LED (pin-3 +5v)
ID 1 ƒƒŸ¿ƒƒ Spindle Synchronization
(pin-6 REF SIG+)
If these ID jumper are used, then
ID jumpers shown in left side
view ARE NOT USED.
ST - 1830N
UNFORMATTED CAPACITY (MB) ________________834
FORMATTED CAPACITY (xx SECTORS) (MB) _____702
AVERAGE SECTORS PER TRACK ________________79
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________17,225
CYLINDERS ________________________________1,325 (user)
HEADS ____________________________________13
DISCS (3.5 in) ___________________________7
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (1,7)
INTERNAL TRANSFER RATE (mbits/sec) _______28.4 to 41.2
EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async
EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
SPINDLE SPEED (RPM) ______________________4,535
AVERAGE LATENCY (mSEC) ___________________6.61
BUFFER ___________________________________256 Kbyte
Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI-2 Fast
BYTES PER TRACK __________________________48,419 avg.
TPI (TRACKS PER INCH) ____________________2,150
AVERAGE ACCESS (ms) (read/write)__________TBD
Drive level without controller overhead
SINGLE TRACK SEEK (ms) ___________________TBD
MAX FULL SEEK (ms) _______________________TBD
MTBF (power-on hours) ____________________200,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.5
+5V TYPICAL (amps) ___0.4
TYPICAL (watts) ______11
IDLE (watts) _________9
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Formatted at the factory with 1 spare sector per track
and two spare cylinders at inner tracks per unit.
Seagate reserves the right to change, without notice, product
offerings or specifications. (10/12/93)