Texas Instruments PHP1600 Bedienungsanleitung

Home Computer

Accessory

Texas Instruments

Telephone

Coupler

(Modern)

Model No

PHP1600

Enables your TI Home Computer to

communicate via a standard telephone.

With a TI Telephone Coupler (Modem) and

the TI RS232 Interface (sold separately),

your Home Computer can communicate

with similarly equipped computers. You can

send and receive messages and data,

transfer programsbetween

Home

Computers, and access information from

consumer data services you subscribe to.

See the owner's manual for the TI RS232

Interface for details of the Home Computer's

communicating capabilities.

In order for information to be sent or received via

the telephone system, the data output from your

computer must be converted to a different

form.

The term "modem" is a combination of two

words: "modulator" and "demodulator." The

modulator part of the modem converts

information to a form that can bc sent through the

telephone system and the demodulator converts

information received through a telephone to a

form that can be used by a computer. The

features of the TI Telephone Coupler (Modem)

include:

•

Compatibility with the Bell 103 type

modems.

•

A built-in cable with 25-pin, male connector

for connection to the TI RS232 Interface.

•

Data transfer rates up to 300 Baud (300

Baud means 300 bits of data are transferred

per second).

•

Switch-selectable HALF- and FULL-duplex

operation.

•

A TEST mode for verifying proper operation

of the modem.

•

Switch-selectable ORIGINATE and ANSWER

modes.

•

A UL-listed and CSA-approved low-voltage

AC adapter to power the modem.

IMPORTANT

The TI RS232 Interface is required

for the proper operation of the TI Telephone

Coupler (Modem). This unit is sold separately.

Installation

First, unpack the TI Telephone Coupler (Modem)

and its AC adapter. To hook up your modem, slide

the "Originate-Off-Answer" switch to the "Off '

position, push the power connector into the

recepticle at the end of the modem, as shown in

Figure 1, and plug the AC adapter into a standard

115-volt outlet.

,..4011114,

Power Connector Inter ace Cable

Figure 1

Originate/Off/Answer Switch

Full Test Half Switch

Next connect the modem cable to the TI RS232

Interface. Slide the switch to the Originate (0) or

Answer (A) position and check to see that the

POWER indicator lamp is lighted. Before

beginning operation, you should test your TI

Telephone Coupler to be sure it is working

properly. For the proper procedure, see the

Test

Mode

section of this manual.

Operation

When you are using your computer to access data

information services you subscribe to, you will

need an RS232 Interface unit and one of the

Command Modules designed for this purpose. See

the module manual for operational information.

41.1b,

To communicate with another TI Home Computer

(or other computer), follow these procedures. One

modem must be in the ORIGINATE mode and the

other in the ANSWER mode. Prior to establishing

communications between computers, you and the

person at the remote location mutually decide

which mode of operation each of you will use.

Then, you should select the FULL-DUPLEX or

HALF-DUPLEX mode. Normally you only use the

FULL-DUPLEX mode unless an application

program or Command Module requires the HALF-

DUPLEX naode. If you decide to use the

ORIGINATE mode, slide the "Originate-Off-

Answer" switch to the Originate position. The

other person selects the ANSWER mode and

connects their phone to a modem. You should

then hear an answering tone from your earpiece.

When you hear this tone, push your telephone

handset into the acoustic muffs with the cord

toward the RS232 cable. Make sure that the phone

handset fits snugly in the muffs. When the

modem is ready to communicate, the READY

indicator will light and you may begin

transmitting information.

Figure2

If you have agreed to use the ANSWER mode,

first. slide the switch to the Answer position, and

then place the handset in the acoustic muffs just

as you did when using the modem in the

ORIGINATE mode. When your modem is in the

ANSWER mode, you will hear a tone whether or

not the READY indicator is on. When The READY

indicator turns on, you may proceed with normal

communications.

When the information transfer has been

completed, simply slide the switch to the Off

position and hang up the telephone.

The TEST Mode

As mentioned previously, your TI Telephone

Coupler has a TEST mode which enables you to

verify that the modem is working properly. The

test procedure consists of the following steps:

Set the "Full-Test-Half ' switch to the middle

or "Test" position.

Slide the "Originate-Off-Answer" switch to the

Originate position. You should hear a

continuous tone from the speaker muff. if not,

the modem is defective (see "In Case of

Difficulty").

Select TI Basic from the Master Selection List.

Enter the following program:

100 REM — TEST MODE —

110 OPEN #1: "RS232.EC.LF", FIXED 1

120 CALL KEY (0, KEY, STATUS]

130 IF STATUS = 0 THEN 120

140 PRINT #1: CHRS(KEY]

150 INPUT #1: A$

160 PRINT A$

170 GOTO 120

Then type RUN and press ENTER to start the

test program.

Dial a single digit on the telephone and push

the handset into the muffs as before. Dialing

one digit eliminates the dial tone and obtains

a quiet line. Since the line will remain quiet

for only a short time. it may be necessary to

dial another digit every half-minute or so to

prevent the dial tone from interfering with the

test. An alternative method which will keep

the phone line quiet for a longer period of

time is to dial another telephone number and

ask the person answering to cover the

mouthpiece. This will keep background or

room noise from interfering with the test.

To test the ORIGINATE mode, proceed as

indicated:

Wait for a READY indication.

Press any alphanumeric key on the keyboard

of your Home Computer.

If the key symbol appears on the TV screen,

the ORIGINATE mode is working properly.

Next test the operation of the ANSWER mode:

Slide the switch to the answer position. (It is

not necessary to move the telephone handset.)

10.

Wait for the READY indicator to come on and

then press a key.

11.

Again check the displayed key symbol.

If the key symbol is not displayed or displayed

incorrectly, in either the ORIGINATE or ANSWER

modes. see "In Case of Difficulty."

In Case of Difficulty

The problem that occurs most often with a

properly connected modem is a poor telephone

connection or a noisy telephone line. This can

cause errors in the transfer of information or loss

of information. Try to obtain a clear, noise-free

line by redialing the telephone number. If the

TEST mode indicates your TI Telephone Coupler

(Modem) is working properly and you are still

having trouble, check the following table for other

sources of the problem.

TROUBLE



WHAT TO DO

READY

Indicator does

not come on:

Check to be sure power is on.

Check the position of the

handset.

(see Figure 2)

Check the position of the mode

switches.

When communicating with

another computer, one

modem must be in the

ORIGINATE mode and the

other in the ANSWER mode.

Usually, you and the person

at the other end of the

phone line agree on which

mode each of you will use

prior to beginning

communications.

The TI Telephone Couplers

(Modems) must be in either

FULL-DUPLEX or HALF-

DUPI,EX for proper

communications. The TEST

mode will not work for

information transfers.

If you are using TI BASIC

PROGRAMS, the Telephone

Couplers (Modems) must be

in FULL-DUPLEX niode.

TROUBLE



WHAT TO DO

4. If you are using a time-

sharing service, your

Telephone Coupler (Modem)

should normally be in the

ORIGINATE mode.

The modem at the other

location must be compatible

with yours. Your TI Telephone

Coupler (Modem) can

communicate with a similar T1

unit or with a Bell 103

compatible modem.

Garbled

Display

Check the handset to be sure it

is snugly seated in the acoustic

muffs.

Both your Home Computer and

the remote computer must

transfer information at the

same rate (300 Baud

maximum). See the TI RS232

interface manual for more

inlbrmation on Baud rate.

Check the telephone line. If it

sounds noisy or weak or you

hear voices, dialing sounds, or

other tones, redial the

telephone number.

Specifications

Size:



25.9 x 11.9 x 5.8 cm

Weight:



0.68 kg

Power:



Supplied by UL-listed, CSA-

approved AC adapter with

cNonnecting cord.

Modem

Compatibility:



Bell 103

Data Interface:



The TI Telephone Coupler

(Modem) has a built-in cable

which provides connection

to the TI RS232 Interface

via a 25-pin male connector.

Pin Connections

Pino Function



Input/Output

0K 2

1):/

Receive Data



Output



Ct..)

(to Home Computer)

(f)



3,//6 Transmit Data



Input



(i.t)

(from Home Computer)



Signal Ground



Common

Lat.(



20 /,/ Modem Ready



Output

Service Information

If the Telephone Coupler is in warranty, it will be

repaired or replaced under the terms of the

Limited Warranty. Out-of-warranty units in need

of service will be repaired or replaced with

reconditioned-units (at TI's option), and service

rates in effect at the time of return will be

charged. Because our Service Facility serves the

entire United States, it is not feasible to hold units

while providing service estimates. For advance

information concerning our flat-rate service

charges, please call our toll-free number listed

below.

If you have questions concerning repair, please

call our Customer Relations Department at

800-858-4565 (toll free within the contiguous

United States except Texas) or 800-692-4279

within Texas. The operators at these numbers

cannot provide programming assistance.

For questions of a technical nature, you can call

806-741-2663. Please note that this is not a toll-

free number, and we cannot accept collect calls.

Exchange Centers

If your TI Telephone Coupler requires service,

4111i,

instead of returning the unit to a service facility

for repair or replacement, you may elect to

exchange the unit for a factory-reconditioned unit

of the same model (or equivalent model specified

by TI) by going in person to one of the exchange

centers which have been established across the

United States. Out-of-warranty exchanges will be

charged at the rates in effect at the time of the

exchange. Please refer to the enclosed Exchange

Service listing, or call the Consumer Relations

Department for the location of the nearest

exchange center.

Three-Month Limited Warranty

THIS TEXAS INSTRUMENTS TELEPHONE

COUPLER (MODEM) WARRANTY EXTENDS TO

THE ORIGINAL CONSUMER PURCHASER OF

THE ACCESSORY.

WARRANTY DURATION

This Telephone Coupler (Modem) unit is

warranted for a period of three (3) months from

the date of the original purchase by the consumer.

WARRANTY COVERAGE

This Telephone Coupler (Modem) unit is

warranted against defective materials or

workmanship.

THIS WARRANTY IS VOID IF THE

ACCESSORY HAS BEEN DAMAGED BY ACCI-

DENT, UNREASONABLE USE, NEGLECT,

IMPROPER SERVICE OR OTHER CAUSES NOT

ARISING OUT OF DEFECTS IN MATERIALS OR

WORKMANSHIP.

WARRANTY DISCLAIMERS

ANY IMPLIED WARRANTIES ARISING OUT OF

THIS SALE, INCLUDING BUT NOT LIMITED TO

THE IMPLIED WARRANTIES OF MERCHANT-

ABILITY AND FITNESS FOR A PARTICULAR

PURPOSE, ARE LIMITED IN DURATION TO THE

ABOVE THREE-MONTH PERIOD. TEXAS

INSTRUMENTS SHALL NOT BE LIABLE FOR

LOSS OF USE OF THE TI TELEPHONE

COUPLER OR OTHER INCIDENTAL OR CONSE-

QUENTIAL COSTS, EXPENSES, OR DAMAGES

INCURRED BY THE CONSUMER OR ANY

OTHER USER.

Some states do not allow the exclusion or

limitation of implied warranties or consequential

damages. so

the above limitations or exclusions

may not apply to you.

LEGAL REMEDIES

This warranty gives you specific legal rights, and

you may also have other rights that vary from

state to state.

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