NEC FDl165 Product Description

FDl165

Flexible

Product

Disk

Drive

Description

NEe

Information

NEe

Systems,lnc.

819-000090-1001

4-82

LIABILITY

DISCLAIMER

NEe

Information
accordance
Systems,

is

affected

tion,

other

are
cific
may

customer
factors.

considered

functional

vary.

Therefore,

the

suitability

is

not

warranted

with

Inc.

it

by

is

Systems,

the

terms

product

system

data

While

to

be

specification.

configuration,

and

NEC

compatible

implementation

the

customer's

of

a

product

by

NEC

First

Printing

Inc.

of

the

operator

Information

with

for

Information

-

products

applicable

Product

software,

control

of

Systems,

most

by

customers

responsibility

a

specific

Systems,

April

1982

are

warranted

NEC

the

Inc.

systems,

of

application

Inc.

Information
performance

the

applica-

system

among

products
the

the

product

to

determine

in

spe-

and

NEe

In~ormation

Lexington,

Printed

Copyright
5

Militia

1982©

Systems,

Drive

MA

in

U.S.A.

Inc.

02173

CONTENTS

CHAPTER

1.1

1.2

GENERAL
FEATURES

1.2.1

1.2.2

1.2..3

1.2.4

1.2,,5

1.2.6

1.2.7

1.2.8

1.2.9

1.2.10

1.2.11

1.2.12

1.3

SPEC

1

GENERAL

.DESCRIPTION

••••••••

Microprocessor-Controlled

Diagnostics
Option
Variable

IFICATIONS

INFORMATION

••••••••••••••••••••••••••••

"

••••••••••••••••••••••••••••••

Compact
Loading/Ejection,

Size

and

Design

Interlocks,

•••••••••••••••
and

Sensors•••••••••••••••••••••••••••••••
Dc

Direct

Read/Write

Mic~o~ro?essor-Controlled

1 t 1on1 ng

Pos

Display
Door

Lock

Interface

Drive

Heads

Spindle

Motor

••••••••••••••••••••••
Head

•••••••••••••••••••••••••••
Head

LEOs

••••••••••••••••••••••••••

Solenoid

••••••••••••••••••••

••••••••'•••••••••••••••••••••

••••••.••

Loading

•••••••••••••••••••.•••••••

Selection

(Optional)

Frequency

••••••••••••••••••••••••••••

••••••••••••••••••••••
Oscillator

•••••••••••••••••••••••••••••••••

1-1

1-1
1-1

1-3
1-3

1-3

1-4
1-4
1-4
1-4
1-4
1-4
1-5

1-5
1-5

CHAPTER

2.1

2.2

PRELIMINARY
UNPACKING/REPACKING

2.2.1

2.2.2

2.3

SYSTEM

2.3.1

2.3.2

2.3.3

2.4

INSTALLATION

2.4.1

2.4.2

2.4.2.1

2.4.2.2

2

INSTALLATION

Unpacking
Repacking

REQUIREMENTS

Operating
Space
Power

Preinstal1ation
Drive

Terminator
Drive

INSPECTION

PROCEDURE

Procedure
Procedure

Environment

and

Weight

Requirements

PROCEDURE

Designation

Resistors..................

Identification

•••••••••••••••••••••••••

••••••••••••••••••

•••••••••••••••••••

•••••••••••••••••••

•••••••••••••••••

Data

•••••••••••••••••

••••••••••••••••••••

••••••••••.•••••••••••.••

Inspection............

••••••.•••••••.•••••

Selection

iii

(DX)...

2-1
2-1
2-1

2-1

.

2-3
2-3

2-3

2-4
2-4

2-4
2-4

2-5
2-5

CONTENTS (cont'd)

Page

2.4.2.3

2.4.2.4

2.4.2.5

2.4.2.6

2.4.3

2.4.4

CHAPTER

3.1

3.2

3.3

DATA

SIGNAL

INPUT

3.3.1

3.3.2

3.3.3

3.3.4

3.3.5

3.3.6

3.3.7

3.3.8

3.3.9

3.3.10

INTERFACE

3

INTERFACE

LEVELS

SIGNAL

Option
Diagnostic
Test
Tr

impots••••••••••••••••••••••••••••••

Mounting

Power

Selection

Pins

and

On

Testing

••••••••••••••••••••••

Plugs

(TP)

Wiring

(T2,

T3)

••••••••••••••••••••••••

•••••••••••••••••••

••••••••••••••••••••••

INFORMATION

CONNECTOR

DATA

••••••••••••••••••

••••••••••••••••••••••••••••••••••

FUNCTIONS

Drive

Select
Head Load
Step

(STP)
Direction
Side

Write

Write

Select

Gate

Data
Current
Reset
In

(FLR)

Use

••••••••••••••••••••••••••••••••

Changeover

•••••••••••••••••••••••••

1

to

4 (DXl

(HDL)

•••••••••••••••••••••••

••••••••••••••••••••••••••••

Select

(SSL)

(WGT)

(WDT)

(DIR)

••••••••••••••••

•••••••••••••••••••••

••••••••••••••••••••••

••••••••••••••••••••••
(LWC)

•••••••••••••••••••••••••••

•••••••••••••

to

DX4)

••••••

••••••••••••••

2-5
2-10

2-11

2-12

2-12

2-16

3-1
3-1
3-3
3-3

3-3
3-4
3-4
3-4
3-4
3-4
3-6
3-6
3-6

3.4

3.5

OUTPUT

3.4.1

3.4.2'

3.4.3

3.4.4

3.4.5

3.4.6

3.4.7

3.4.8

VFO

INTERFACE

3.5.1

3.5.2

3.5.3

3.5.4

SIGNAL

FUNCTIONS

Index
Track
Dual-Sided
Ready
File
Read

Unsafe

Data
Write
Disk

Change

SIGNAL
Modified

(MFM)

VFO

Synchronization
Standardized
Wi

ndow

••••••••••••••••••••••••

(IDX)

00

(ROy)

Protect

•••••••••••••••••••••••••••••••••

•••••••••••••••••••••••••••

(TKC)

••••••••••••••••••••••••

(TSD)

••••••••••••••••••••••

•••••••••••••••••••••••••••
(FUS)

(RDT)

(DCG)

FUNCTIONS

Frequency

•••••••••••••••••••••

•••••••••••••••••••••••

(PRT)

•••••••••••••••••••

•••••••••••••••••••••

•••••••••••••••••

Modulated

(SYC)

(WID)

Read

••••••••••••••••••••••••••

Data

iv

Mode

•••••••••••••

(SRO)

••••••••••

3-6
3-6

3-6
3-6
3-7
3-7
3-7
3-8
3-8

3-9

3-9
3-9
3-9
3-9

CONTENTS (cont'd)

Page

3.6

Table

1-1

1-2
2-1
2-2

INTERFACE

3.6.1

3.6.2

3.6.3

3.6.4

3.6.5

3.6.6

Model FDl165
Model FDl165
Door Lock
Test

Pins

TIMING

Power
Drive
Step
Access
Write
Read

Plug
and

•••••••••••••••••••••••••••••••

On

Select

and

Sequence

••••••••••••••••••••••••••

Track

•••••••••••••••••••••

00

•••••••••••••••••••••

••••••••••••••••••••••••••••••••

•••••••••••••••••••••••••••••••••

After

Step

•••••••••••••••••••••••

TABLES

Title

Capacity
Specifications

Combinations

Signals

•••••••••••••••••••••••

•••••••••••••••••

•••••••••••••••••

•••••••••••••••••••••••

3-10

3-10
3-10
3-10

3-10

3-11
3-12

Page

1-5
1-5

2-9
2-12

v

ILLUSTRA

nONS

Figure

1-1

2-1
2-2

2-3

2-4

2-5
2-6
2-7
2-8

2-9

2-10
3-1

3-2
3-3

3-4

3-5

3-6

3-7

3-8
3-9

3-10
3-11
3-12
3-13
3-14

Title

Model

UnpaGking

Disk

Terminator
Location
on
Cable

Controller
Vertical
Horizontal
Perpendicular
Air
Cooling

Interface

Controller

Interface
Diagram

Data

Signal
Ass
Driver

Step
Write
Write

Index
Read
Disk

Read

Step

Access

FDl165

Drive

Flexible

Diagram

Dimensions
Resistor

and

Selection

Disk

•••••••••••••••••••••••••••

•••••••••••••••••••••••

and

Selection

Plug

PCB......................................

Connections

from

Disk

••••••••••••••••••••••••••••••••••

Installation

Installation

•••••••••••••••••••••••

•••••••••••••••••••••

Installation

Flow

Requirements

for

•••••••••••••••••••••••••••••••••••••
Cables

Between

Disk

••••••••••••••••••••••••••••••••••

••••••••

and

Control

Edge

ignments

and

Signal

Gate
Data
Signal

Data
Change
Data

and

Track

Timing

Connectors

~

••••••••••••••••••••••••••••

Cord

•.•••••••••••••••••••••••••••••••

Receiver

Timing
Signal
Signal

Timing

Signal

Signal

and

Window

00

•••••••••••••••••••••••••••••••

Physical

Interface

Connector

Circuits

••••••••••••••••••••••••••
Timing
Timing

••••••••••••••••••••

••••••••••••••••••••

•••••••••••••••••••••••••

Timing

•••••••••••••••••••••

Timing

Signal

Signal

Timing

Drive

Components.

Configuration
Drives

••••••••••••••••••

Natural

Drive
Location

Connector
Circuit

••••••••••••••••

•••••••••••••••••••
Timing

•••••••••••••

WriteTiming••••••••••••••••••••••••••••••••

Read

After

Step

Timing

••••••••••••••••••••••

Plug

to

Air

and

••••••••

••••••••••

1-2

2-2

2-3

2-

2-7

2-13

2-13

2-13
2-14

2-15

2-16

3-1

3-2

3-3
3-4
3-5
3-5
3-6

3-8
3-8
3-9
3-10
3-11
3-11

3-12

6

vi

CHAPTER 1

GENERAL INFORMATION

This
Disk
face
planning

1.1
The

disk
disks.

format,

The
life

(MTBF)

1.2
The

ternal

document

Drive

information

systems.

GENERAL

Model

storage

wi

the

disk

drive

and

of

24,000

FEATURES

Model

controller

and

DESCRIPTION

FDl165

device

th

maximum

has

FDl165

transistor-transistor
supplied
the

disk

lamps

on

and
drive

the

front

describes

gives

in

Flexible

a

dual-sided

is

designed

a

field-proven

hours.

Flexible

(NEe

controlled

consist

panel

the

specification,

sufficient

Disk

that

uses

flexible

storage

capacity

for

Disk

~PD765

logic

externally.

of

a

(see

Model

single-

a

(TTL)

door

Figure

installation,

detail

Drive

long,

FDl165

is

or

disk

is

l.~

trouble-free

8-Inch

for

a

compact

evaluating

dual-sided

and

double-densi

million

and

mean-time-between-failures

Drive

is

is

operated

recommended)

interface.

Operator

handle

and

Dc

controls

READY

1-1).

Flexible

inter-

magnetic
flexible

bytes.

service

by

an

through

power

and

and

ty

ex-

a

is

on

BUSY

1.2.1
The

Drive

Compact

most

are
measures
mm)
pounds

wide,

(3.5

performance

interface
size,
one

the

two
conventional
remaining

Size

apparent

its

small

8.55
by

inches

13.20

kg)

,t

of

conventional

compatibility

disk

drives

space

and

features

size
inches

The

drive.

can

Design

(217.2

disk

with

can

If

be

of

and

be

used

the

light

mm)

(335.0

drive

units,

them.

mounted

only

1-1

Model

high,

one

to

weight.

mm)

has

and

Because

disk

store

FDl165

by

2.28

deep

all

maintains

in

the

drive

flexible

and

the

Flexible

The

inches

features

of

same

disk

weighs

media
its

space

is

mounted,

disks.

Disk

drive

(58.0

7.
and

and

small

7

as

HEAD

LOAD

SOLENOID

Figure

The
ability
drive

simplified

and

spindle

conventional

•

Drive
with

• The
(only

power,

•

Concerns

are

•

Less
conventional

1-1

Model FDl165

design

simplifies

motor

ac

motor

pulleys

these

special

26

w)

inexpensive

about

eliminated.

heat

parts

brush

than

is

units.

Y---~=====~~--_-I

LAMP

Flexible

of

the

repair.

eliminates

drives.

and

bel

are

type

conventional

power

different

produced

disk

In

ts,

and

eliminated.

dc

supplies

ac

by

D.isk

drive

particular,

problems

the

problems

motor

ac

motors,

voltages

the

disk

Drive

improves

associated

draws

can

be

and

drive

Components

its

reli-

its

dc

direct

associated

less

so

power

that

used.

frequencies

than

with

low

with

1-2

1.2.2

~oadin9/Ejection,

Interlocks,

and

Sensors

Insert
door.
into

ing
same

s~indle,

mlnute

When

the

it

action

a

flexible

hole

in

rotating

(rpm).

ing:

a.

That
door

b.

Whether
loaded.

c.

Whether

d.

Whether

o:f

An

index

the

flexible

Before

the
if

the

front

sensor

you

flexible

the

door

of

operating

the

Sensors

the

slot

the
the

the

disk.

disk,

can

unload

panel

disk

disk

handle

the

flexible

position

drive

motor

the

flexible

is

closed.

a

single-

flexible

magnetic

generates

providing

must

be

is

into

flexible

in

the

disk

or

a

the

flexible

off.

being

the

latches

disk,

on

receives

disk

disk

is

dual-sided

disk

head

pulse

a

time

The

used

disk

closed,

centering

a

spindle

dc

at

drive

properly

has

a

is

located

once

reference.

disk,

door

by

the

drive

power,

360

detect

write

for

slot

host

and

a

collet

it

below.

it

revolutions

inserted

flexible

protect

on

the

each

the

BUSY

does

controller.

close

presses

and

By

moves

the

follow-

and

disk

00

rotation

lamp

not

the

clamp-

the
the

per

the

is

notch.

track

of

on

open

1.2.3

The

disk

dc

motor

minimizes

up-to-speed

The

the

flexible

spindle
springs
ible

disk

1.2.4
Data

using
heads

is

ceramic

are

mounted

heads

to
unloading
the

flexible

Dc

Direct

spindle

makes

the

power

time

disk

by

in

both

even

if

Read/Write

written

magnetic

located

on a

be

of

precision

shifted

a

flexible

disk

Drive

is

driven

drive

of

only

is

a

collet.

the

it

Heads

onto

on

from

surface.

Spindle

bel

required.

600

accurately

spindle

is

warped.

the

read/write

each

guide-bar

track

disk,

by

a

ts

and

ms.

Clamp
and

flexible

side

Motor
dc

The

collet

of

to

the

motor.

pulleys

motor

centered

pressure

disk

heads.

the

flexible

carriage,

track.

heads

This

unnecessary,

provides

and

is

to

protect

and

The

During

are

held

direct

clamped

relieved

the

read

read/write

disk

enabling

loading

away

drive

a

media

flex-

from

and

and

onto

by

it

are
the
and

from

1-3

1.2.5

Microprocessor-Controlled

Head

positioning

The
motor,
This

step
head
the
riage

1.2.6

When

structiori,
faces.

head

step

positioning

linked
arrangement
motor
posi

is

tioning

motor

1/2

track

to

the

provides

controlled

reliabili
shaft
on

the

Microprocessor-Controlled

the

disk

Head

it

loading

drive
lowers

microprocessor-controlled

reducing

creasing

1.2.7

Two

LEOs

ready

damage

flexible

Display

on

and

busy

the

to

disk

LEOs

front

states

the

(access)

carriage

1.8
flexible

logic

the

force

flexible

operating

panel

of

fast

by a

ty.

degrees,

circuit

heads

is

special

provide

the

disk

mechanism

by a

and

tensioned

accurate

microprocessor,

Each

pulse

which

disk.

Head

Loading

receives

onto

the

controlled

cam

disk

life

governs

surface,

and

a

visual

drive.

consists

command

moves a

a

head

flexible

by a

data

display

of

steel

access.

increasing

rotates

head/car-

load

disk

solenoid.

head

loading,

thereby

integrity.

a

belt.

of

step

The

in-

sur-

A

in-

the

1.2.8
The

during

loss

1.2.9
Signal

by a

Door Lock

door

certain

or

physical

Interface

and

50-pin
grounds)
quency

1.2.10
The

Oscillator

Diagnostics

disk

cuitboard
conditions.

lock

data

are

drive

(PCB)

solenoid

drive

lines

edge

all

diagnostics

Solenoid

operations,

damage

interface

card

connector.

operated

(VFO)

plugs

makes

to

the

at

option

that

it

flexible

TTL

requires

consist

can

impossible

thereby

disk.

with

the

The 21

levels.

another

of

movable

be

used

to

preventing

host

active

The

to

establish

remove a

controller

lines

Variable

three

printed

disk
data

is

(plus

Fre-

lines.

cir-

test

1-4

1.2.11

The

FDl165

as

well
function
your

particular

scription

Option

is

as

drive

plugs

of

Selection

equipped

door

allow

needs.

these

with
and

you

features.

See

signal

busy

to

lamp

tailor

Section

function

function

the

2.4.2.3

disk

selection

plugs.

drive

for

a

to

full

plugs,

These

suit

de-

1.2.12

The

optional

troller

reliability

1.3

SPECIFICATIONS

Capacities

listed
and

performance

CAPACITY

(Bytes)

Per

diskette

Per

track

Per

sector

Sectors
track

Variable

more

in

Table

Table

per

of

for

Frequency

VFO

stable.

the

the

1-1.

makes

disk

Model

Mechanical,

Oscillator

the

This

drive.

FDl165

specifications

1-1

SINGLE-SIDED

SINGLE-DENSITY

24(;K
3328 3840 4096 3328

128 256 512 128

26

Model

284K

15

FD1l65

303K

8

interface

feature

Flexible

electrical,

are

listed

Capacity

DUAL-SIDED

SINGLE-DENSITY

493K 568K

3840 4096

26

(Optional)

signals

increases

606K 985K

256

15 8

Disk

environmental,

in

Table

(Formatted)

DOUBLE-DENSITY

512 256

6656 7680

26

to

the

the

overall

Drive

1-2.

DUAL-SIDED

1137K

512

15

con-

are

1212K
8192
1024

8

FEATURES

Capacity

Capacity

Per

Disk

Per

Track

Per

Sector
Tracks
Bit

Density

Transfer

Recording

Table

(unformatted)

(formatted-maximum)

per

Disk

Rate

Method

1-2

Model

Single-Sided

Single-Density

400K

303K

4,096

512

3,268

250K

FD1l65

bytes

bytes
bytes
bytes

77

bpi

bps

FM

1-5

Specifications

SPECIFICATIONS

Dual-Sided

Single-Density

bytes

800K

606K
512
154

250K

FM

bytes
bytes
bytes

bpi

bps

4,096

3,408

Dual-Sided

Double-Density

154

500K

FMM

bytes

bytes
bytes
bytes

bpi

bps

1,600K

1,212K
8,192
1,024

6,816

Table

1-2

Model

FDl165

Specifications

(cont'd)

FEATURES

of

Number
Track
Rotational

Access

Track-to-Track
Seek
Head
Latency
Start

Power

Power

Mechanical

Height

Width

Depth

Weight

Environmental

Ambient

Operating:

Non-operating:

Sectors/Track

Density

Time

settling

load

time

time

requirement

consumption

temperature

Speed

time

time

(average)

83.3

+24 Vdc
+ 5 Vdc

26

watts

2.28

8.55

13.19

7.7

50°F

+23°F

8

48

tpi

360 rpm

3.0

ms

15.0

ms

30.0

ms

ms

0.6

second
+10%@0.9

+5%@0.8

­(27

inches

inches

inches

pounds

to

+113°F (+10oC

to

+158°F

0.9

watts

(58

mm)
(217.2
(335
(3.5

(-5°C

SPECIFICATIONS

Amp

(maximum)

Amp

(maximum)

Amp

(maximum)

with

VFO)

mm)
mm)
Kg)

to

+45°C)

to

+70oC)

without

with

VFO/

VFO

Relative

Operating:

Reliability

Mean Time

Failures

~ean

Time

Component

Soft

Error

Hard

Error

Seek

Error

Media

IBM

Diskette

equivalent

IBM

Diskette

equivalent

IBM

Diskette

equivalent

humidity

Between
To

Repair

Life

Rates
Rates
Rates

1

or

2

or

2D

or

20%

24,000

0.5
15,000
1

bit

1

bit

1

in

to

80%

Power

hours

POH
in
in

106

On

or5years
109
1012

Hours

(POH)

1-6