IBM 09N4076 manual Environmental requirements, IBM 4X/8X/32X CD-ReWritable Internal IDE Option Kit

Environmental requirements

The

following

table

lists

the

environmental

specifications

for

the

CD-RW

drive.

You

can mount the drive vertically

or

horizontally.

Environmental

Requirements:

Specification

Operational

Nonoperational

Temperature

+5°C

to

+45°C

−20°C

to

+60°C

(noncondensing)

(+41°F

to +113°F)

(−4°F

to +140°F)

Relative

humidity

10%

to

80%

5%

to 90%

(noncondensing)

Write/Read speeds

The

following

table

lists

the

CD-RW drive

write/read

speeds

for

different

media.

Drive

Write/Read

Speeds:

Function

Speed

Read

(CD-ROM/CD-R disc)

1X,

2X,

4X, 8X,

16X,

14X-32X

(CAV)

Read (CD-RW disc)

8X-20X

(CAV)

Write (CD-R disc)

2X,

4X,

8X

Write (CD-RW disc)

2X,

4X

Drive-performance

specifications

The

following

table

lists

the

performance

specifications

of

the

CD-RW

drive.

Drive

performance:

Feature

Specification

Burst

data

transfer

rate

16.7

MB 12

per

second

(ATA

PIO

Mode

4)

16.7

MB

per second (ATA

multiword

DMA

Mode

2)

33.3

MB

per

second

(UDMA)

Average access

time

(including

latency)

110

ms

(14-32X,

CAV)

Cache

memory

(Read/Write)

2 MB

Disc

diameter

12

cm

(8

cm

read-only)

Rotational speed (CD-RW)

4000

rpm

Rotational

speed

(CD-ROM/CD-R)

7000

rpm

Mean

time

between

failures (MTBF)

120 000

POH

(duty

10%)

12 The formatted capacity of 1 MB is approximately 1 000 000 bytes of data.

2-2 IBM 4X/8X/32X CD-ReWritable Internal IDE Option Kit