US Robotics USR-310 Manual de usuario

ORIGINATE

THEORY

U.S.

ROBOTICS»

INC.

F.O.

BOX

S502

CHICAGO,s

ILLINOIS

60480

(312)-528-9045

USR-310

ACOUSTIC

COUPLER

OPERATIONS

MANUAL

FAGE

GENERAL

INFORMATION

Modems

are

used

for

transmitting

disdital

data

(such

from

comeuter

terminal)

over

analogs

channels

(such

the

telerhone

network)

shown

figure

The

modem

from

which

call

beinst

welaced

said

working

the

oridinate

mode.

The

modem

which

answers

the

call

said

the

answer

mode.

modem

the

originate

mode

transmits

losdicsal

"mark"

freauency

L270Hey

and

losical

“srace"

freauency

1LO70H=.

Simultaneously»

the

originate

modem

receives

sigmals

from

the

answer

modems

treating

freauency

2225He

mark

and

2025H2

srace.

Turing

eeriods

when

either

modem

mot

actively

transmitting

datay

sends

constant

mark.

data

being

sent

simultaneously

both

directions:

sustem

said

to be

"full-durlex".

data

sent

only

one

direction

time

system

“halfenurlex".

many

cases,

full<-durelex

means

that

when

terminal

linked

commuters

the

comruter

echoes

back

what

the

rerson

the

terminal

turing.

Likewise,

half-duelex

usually

means

that

the

terminal

itself

echoes

back

what

the

rerson

the

terminal

turing

and the

comruter

doesn’t,

The

USR-310

has

half/full

durlex

switch

which

can

used

echo

back

what

vou

tyre

your

earticular

terminal

carmot.

vou

gre

signed

half-durlex

system

and

your

terminal

modem

the

full-durlex

eositions

vou

will

mot

see

what

vou

ture.

you

are

signed

full-durelex

system

anid

your

terminal

modem

the

half-durelex

moder

you

will

see

everything

vou

ture

erinted

twice,

TERMINAL

MODEM

TELEFHONE

LINE

«—AMOnEMK—ACOMFUTER]

FIGURE

PAGE

INTERFACE

THE

TERMINAL

DEVICE

The

USR-310

connects

the

comruter

terminal

via

the

RS-232C

female

conmmector

the

case-hackranel,

gour

device

does

not

have

rein

RS-232C

connector

consult

the

manufacturer

the

devicer

Arrendix

and/or

U.S.

Robotics

for

further

hook

informations,

ERATION

orerate

the

USR-310?

Plus

the

ein

commector

from

your

terminal

other

device

into

the

recertacle

on the

USR-310

baeckranel,

Select

the

arrrorriate

half

full

duelex

setting.

Turn

the

USR-310

and

your

terminal

other

device.

lial

the

arrrorriate

telerhone

rmumber

and

listen

for

hisgh-ritehed

toner

then

insert

the

telerhone

handset

into

the

rubber

curs

tor

the

USkF-310.

The

"cord®

end

the

handset

should

be on

the

left

sou

face

the

USR-310

front

eanel,

(For

best

resultss

insert

the

handset

into

one

cur

firsty

then

feull

gently

the

‘

direction

the

other

cur

and

insert

the

other

end

the

handset

For

removals

move

the

handset

sently

toward

the

end

the

modem

with

the

half/full

durelex

Switch

and

remove

the

handset

from

one cur

firsts

then

the

other.

Removal

made

easier

one

gently

fries

the

wall

the

rubber

cur

away from

the

handset

remove

any

vacuum

created

the

insertion

the

handset

into

the

curs.

These

techniaues

work

hetter

than

trying

force

the

handset

into

out

both

curs

simultaneously,

5S.

The

communications

link

now

established

and

vou’re

ready

send

and

receive

data.

6»

end

the

sessions

remove

the

handset

and

hans

ur the

telerhone.

recommended

thet

the

USF-310

turned

off

whenever

mot

use.

NOTE?

The

USR-310

has

adiuustable

transmit

level

which

can

used

make

the

tone sent

from

the

sreaker

Louder

softer.

This

level

has

been

set

the

factory

serve

the

widest

mumber

arrlicationss

howevery

wou

experience

difficulties

reliable

communications

adjusting

the

transmit

level’

may

hele.

The

adJiustment

accessible

from

hole

the

baserlate

the

bottom

the

case.

few

suidelines

may

be of

helr3

the

modem

the

other

end

your

transmission

link

does

mot

hear

your carriery

receives

data

imerorerlyy

you may

want

make

your

USR-310

transmit

louder,

the

USR-310

having

difficulty

receiving

data

Prorerly,

you

will

want

make

your

transmit

level

softer.

PAGE

AFFENTDIX

DEFINITION

FINS

EIA

RS-232C

FIN

CONNECTOR

Protective

grounds

this

rin

hardwired

earth

ground

within

the

modem.

Transmit

dateay

data

transmitted

the modem.

-3

~-25

volts

for

losical

+25

volts

for

logical

Oo.

Received

data,

dats

received

from

the

other

modems

-12

volts

for

alostical

+12

volts

for

logical

Oo,

Carrier

detect

(clear

send)»

rositive

level

when

detecting

cerrier

from

other

modem,

Tata

set

ready,

Signal

grounds

same

rin

Clear

sendy

same

rin

5S.

WARRANTY

COVERAGE

AND

SERVICING

ARRANGEMENTS

FEEEEEET

EEEEE

EEE

ETE

EEE

EET

EEE

EEEEEEE

EEE

WARRANTY

U.S.

Roboticsy

Inc.

warrants

the

original

Purchaser

that

shall

either

rerair

rerlace

(at

its

ortion)

this

rroduct

if it

should

rrove

defective

material

+ +

workmanshire

under

normal

orerating

conditions

within

days

from

date

original

eurchase.

This

warranty

+ +

void

the

product

modifieds

tamrered

withs

misused

subJected

abnormal

working

conditions.

This

warranty

stands

int.

liew

all

other

warranties

either

empress:

imrlied

statutory.

FEEEEEEEEEEEEEEEEEEEEEEEEEEEEEETEEPEPE

Ett

tte

ttt

ett

SERVICING

al1

the

following

cases,

U.S.

Robotics

will

ray

for

one

way

shirerind

chardes

the

purchaser.

the

malfunctioning

rroduct

modem-data

courler

combinations

then

hoth

modem

and

data

courler

must

returned

U.S.

Robotics.

Annual

Maintenance

Fackase

Anse

acoustic

courlers

modem,

data

courlery

modem-data

courler

combination

purchased

from

U.S.

Robotics

may

relaced

under

maintenance

agreement

for

fee

$25.00

rer

year.

Under

this

adreementy

U.S.

Robotics

will

rerair

the

rroduct

additional

charse

the

wurchaser

should

rrove

defective

under

normal

oreratingd

conditions.

the

purchaser

elects

not

the

Annual

Maintenance

Packase

before

the

expiration

the

day

warranty

reriod

and

subseauently

wishes

subscribe,

the

rurchaser

elects

mot

resubscribe

existing

Anmual

Maintenance

Packade

agreement

before

its

expiration

and

subseauvently

wishes

resubseribery

then

the

rurchaser

must

shir

the

rroduct

covered

to U.S.

Robotics»

Inc.

for

evaluation

and

certification

that

the

unit

good

working

order»

the

rroduct

functioning

imerorerly

inoperativer

shall

repaired.

The

fee

for

the

necessary

rerair

and

certification

service

$30.00

addition

the

$25.00

Annual

Maintenance

Package

fee.

Froducts

mot

covered

the

Annual

Maintenance

Fackade

will

serviced

$30.00

rer

rerair

basis.

Express

Rerair

Service

For

eurchasers

who

have

established

credit

with

U.S.

Robotics,

offer

Express

Repair

Service.

Under

this

rlanry

will

shir

rerlacement

acoustic

courler,

modemy

date

courler,

nodem-data

coupler

combination

via air

freight

the

same

day

ere

notified

the

rurchaser’s

rroduct

failure.

The

Furchaser

must

shir

the

inorerative

rroduct

to U.S.

Roboties

within

three

days

the

Product failure

notification.

The

exchanse

shall

rermanent

unless

the

purchaser

reauests

that

the

original

Product

returnedy

which

case

the

original

rroduct

and

the

U.S.

Robotics

rerlacement

rroduct

shall

exchanged

uron

rerair

the

rurchaser’s

orisinal

product.

Under

the

Express

Rerair

Service

aortions

the

Annual

Maintenance

Fackase

fee

$35.00

and

rroducts

mot

covered

the

Fackade

will

serviced

$40.00

eer

reragir

basis.

Any

acoustic

courlery

modem

data

courler

which

has

been

modified

anv way

the

rurchasers

has

been

subjected

shnormal

orerating

conditions

abuse

will

not

serviced

under

any

the

plans

listed

ahove.

Insteady such

product

may

serviced

the

rate of

$25.00

rer

hour

for

labor

elus

Farts

costs,

all

cases

product

failurey

contact

U.S.

Robotics

for

shirring

instructions

the

arrrorriate

servicing

center.

Fees

subJect

change

without

motice

after

1978,

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