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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)
- ┌──────────────────────────────────┬─────────────────────────────────┐
- │ United States +1 408 438-8771 │ United Kingdom +44 628 478011 │
- ├──────────────────────────────────┼─────────────────────────────────┤
- │ Germany +49 89 140-9331 │ Singapore +65 227-2217 │
- └──────────────────────────────────┴─────────────────────────────────┘
- (C)opyright 1993
-
-
-
- ST-3390N
- Rear View ┌─ 50 pin SCSI Interface I/O connector
- │
- │ DC power
- (TOP) ╒════════════ ═══════════╕ /─5─G─G─12\
- ════╡::::::::::::::::::::::::1╞═╡ 0 0 0 0 ╞═
- (BOTTOM) ╘═════════════════════════╛ └─────────┘
- ┌─────1 ┌─────1 ┌─────1
- └─────┘ └─────┘ └─────┘
- Terminating Resistor Packs
-
-
- ST-3390N
- Left View o o o1
- (TOP) o o o ╒═╕
- Front....══════════════════╪═╪═╪═════╡ I/O connector
- │ │ │ ╘═╛
- SCSI Address ID 1 ─┘ │ │
- ID 2 ───┘ │
- ID 4 ─────┘
-
-
- ST-3390N
- Right View
-
- o o4 o o o6 (TOP)
- ╒═╕ 1o│o 1o│o o
- DC Power ╞════╪══════ │ ════════════════════════════════
- ╘═╛ │ │
- │ ──┴────
- │ Active/Passive Termination
- ──┴── ──┬────
- Terminator Power ┌───┴────────────────────────────┐
- ──┬── │ Active: Pins 1 & 2 shorted │
- │ │ only (+2.85V to │
- │ │ 110 Ω) for FAST │
- │ │ SCSI; default. │
- │ │Passive: Pins 2 & 4 shorted │
- │ │ AND pins 5 & 6 shorted │
- │ │ (+5V and GND to │
- │ │ 220/330 Ω) for │
- │ │ standard SCSI. │
- │ └────────────────────────────────┘
- │
- ┌─────────────┴────────────────────────────────────────────────────────┐
- │Terminator Power: From SCSI Connector ──────────────── Pins 1 & 2 │
- │ From Power Connector (default) ───── Pins 1 & 3 │
- │ To SCSI Connector Only ───────────── Pins 3 & 4 │
- │ From Power Connector and ─────────── Pins 1 & 2 AND │
- │ to SCSI Bus --------------------------- 3 & 4 │
- │ Terminating Resistors not Installed ─ Pins 2 & 4 │
- └──────────────────────────────────────────────────────────────────────┘
-
-
- ST-3390N
- Front View
-
- ┌────────────────── SCSI ID's (none for ID0)
- │ not used if ID set on side jumpers
- │ ┌────────────── Ext. Spindle Clock Synch
- │ │ pin-5 is Clock Ground
- │ │ ┌──────────── Remote LED
- (TOP) ┌─┴─┐ │ │ ┌────── Reserved
- 4 2 1 │ │ ┌───┴───┐
- o o o o o-o o o o o
- 1o o o o o+o o o o o o o o o+
- ════════════════════1o o o o-════════════════
- │ │ │ │
- (BOTTOM) │ │ │ └── Remote LED
- │ │ └──── Ext. Spindle Clock Synch
- │ │ pin-5 is Clock Ground
- │ └────── Remote Start Enable
- └──────── Parity Enable
-
-
- ST-3390N
-
-
- UNFORMATTED CAPACITY _____________________
- FORMATTED CAPACITY (xx SECTORS) __________344.3
- AVERAGE SECTORS PER TRACK ________________83 rounded down
- ACTUATOR TYPE ____________________________STRAIGHT ARM
- TRACKS ___________________________________8,028
- CYLINDERS ________________________________2,676 (user)
- HEADS ____________________________________3
- DISCS (3.5 in) ___________________________2
- MEDIA TYPE _______________________________THIN FILM
- HEAD TYPE ________________________________THIN FILM
- RECORDING METHOD _________________________ZBR RLL (1,7)
- INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3
- SPINDLE SPEED (RPM) ______________________4,500
- AVERAGE LATENCY (mSEC) ___________________6.67
- BUFFER ___________________________________256 Kbyte SeaCache
- Multisegmented, read look-ahead
- INTERFACE ________________________________SCSI-2 Fast
- BYTES PER TRACK __________________________42,888 avg.
- SECTORS PER DRIVE ________________________672,480
- TPI (TRACKS PER INCH) ____________________3,000
- BPI (BITS PER INCH) ______________________52,602
- AVERAGE ACCESS (ms) ______________________12
- SINGLE TRACK SEEK (ms) ___________________<4
- MAX FULL SEEK (ms) _______________________30
- MTBF (power-on hours) Office _____________250,000
- POWER REQUIREMENTS: +12V START-UP (amps) _1.9
- POWER MANAGEMENT (Watts):
- ACTIVE _______________5.75
- IDLE _________________3.0
- WRITE PRECOMP (cyl) ______________________N/A
- REDUCED WRITE CURRENT (cyl) ______________N/A
- LANDING ZONE (cyl) _______________________AUTO
- IBM AT DRIVE TYPE ________________________0
-
- Formatted at the factory with 2 alternate cylinders. Total physical
- cylinders equal 2678.
-
- Physical:
- Height (inches/mm): 1.00/25.4
- Width (inches/mm): 4.02/102.1
- Depth (inches/mm): 5.77/146.6
- Weight (lbs/kg): 1.5/0.68
-
- Note: If FAST SCSI transfer rates are used, then the active
- termination options must be used. If the transfer rates are 5.0
- MBytes/sec and below, either method of termination can be used.
- Although active and passive terminated devices can be installed on the
- same bus, both ends of the cable should be terminated in the same
- manner, either both active or both passive.
-
- Note: If your application requires no terminators, remove the
- terminators from the circuit board. Merely removing the terminator
- power source selection jumper does not disconnect the terminator
- resistors from the circuit.
-
- ZBR = Zone Bit Recording = Variable sectors per track
-
- Seagate reserves the right to change, without notice, product
- offerings or specifications. (05/13/93)
-