|
0664
0664-x1H
2.0 GB, 3.5x1.6, 5400 RPM What is the difference
between the -M1H and -N1H?
Performance
|
Rotational speed
|
5400 RPM
|
|
Media transfer rate (avg)
|
5.2 MB/sec (instantaneous)
|
|
Interface transfer rate (max
|
20.0 MB/sec (synchronous)(sustained)
|
|
Interface transfer rate (max)
|
10.0 MB/sec (asynchronous)
|
|
Latency average
|
5.56 ms
|
|
Seek time (typical)
|
|
|
Average (read)
|
9.2 ms
|
|
Track to track
|
0.6 ms
|
|
Full track
|
17.4 ms
|
NOTE: The 0664 uses 6x32 mounting
screws, no longer than 3.8mm.
WARNING: The file's mounting frame
is electrically isolated from the file's disk enclosure. The disk enclosure
is not at ground potential. Therefore any user mounting scheme must not
result in the disk enclosure being shorted to ground.
PLEASE NOTE: The 0664 frame supports
Industry Standard mounting holes on the sides and bottom, as well as IBM's
bottom mounting holes which are common with the old IBM frame.
Location
of Option jumper blocks
Figure
9 50 Pin SCSI Model M1H
Figure
10 Address Determination - 50 Pin SCSI Model M1H
|
Bit 0
|
Bit 1
|
Bit 2
|
Address
|
|
off
|
off
|
off
|
0
|
|
on
|
off
|
off
|
1
|
|
off
|
on
|
off
|
2
|
|
on
|
on
|
off
|
3
|
|
off
|
off
|
on
|
4
|
|
on
|
off
|
on
|
5
|
|
off
|
on
|
on
|
6
|
|
on
|
on
|
on
|
7
|
Bit is selected with shunt in place
Figure
8 68 Pin SCSI Model M1H
Figure
11 Address Determination - 68 Pin SCSI Model M1H
|
Bit 0
|
Bit 1
|
Bit 2
|
Bit 3
|
Address
|
|
off
|
off
|
off
|
off
|
0
|
|
on
|
off
|
off
|
off
|
1
|
|
off
|
on
|
off
|
off
|
2
|
|
on
|
on
|
off
|
off
|
3
|
|
off
|
off
|
on
|
off
|
4
|
|
on
|
off
|
on
|
off
|
5
|
|
off
|
on
|
on
|
off
|
6
|
|
on
|
on
|
on
|
off
|
7
|
|
off
|
off
|
off
|
on
|
8
|
|
on
|
off
|
off
|
on
|
9
|
|
off
|
on
|
off
|
on
|
10
|
|
on
|
on
|
off
|
on
|
11
|
|
off
|
off
|
on
|
on
|
12
|
|
on
|
off
|
on
|
on
|
13
|
|
off
|
on
|
on
|
on
|
14
|
|
on
|
on
|
on
|
on
|
15
|
Note 1: If Auto Start Shunt is not
on, the file starts by SCSI command only.
Note: In the charts above "off"
means jumper is not in place and "on" means jumper is in place.
SCSI bus
terminators
0664 has no internal SCSI bus terminators. The system is responsible
for properly terminating the SCSI bus. A regulated 110 Ohm terminator is
recommended for reliable fast operations (ie, transfer speeds greater than
5M transfers/sec). Split resistor or regulated terminations may be used
for systems that do not plan fast data transfers. Some of the terminator
possibilities for 0664 are listed in Figure 6.
SCSI
bus termination power
Termination power is optionally provided for systems that desire to
use it. In order to use the 0664 termination power, the user needs to install
a jumper between pins B8 and A8 of the Options block. The jumper should
only be installed on one device, which should be the last device on the
SCSI bus (ie, the device that is physically closest to the terminator).
0664 68-pin models can source up to 2.0 Amps of current at 5.0 Volts (plus/min
5%) for termination power. 0664 50-pin models can source up to 1.5 Amps
of current at 5.0 Volts (plus/min 5%) for termination power.
|
Data Transfer Rates
|
50-Pin Terminators
|
68-Pin Terminators
|
|
<5M transfers/sec
|
Data Mate DM500-06-0
|
Data Mate DM2050-02-68S
|
|
Data Mate DM500-06-R
|
Data Mate DM2050-02-68R
|
|
Data Mate DM2000-02-R
|
|
|
> 5M transfers/sec
|
Data Mate DM500-06-R
|
Data Mate DM2050-02-68R
|
|
Data Mate DM2000-02-R
|
|
Drives
Main Page
9595 Main
Page
|