Hal communications Rpc-2000 User manual

RPC-2000

Radio

Packet

Controller

Copyright

1988

by

HAL

Communications

Corp.,

Urbana,

Illinois.

Printed

in

the

United

States

of

America.

All

rights

reserved.

Contents

of

this

publication

may

not

be

reproduced

in

any

form

without

the

written

permission

of

the

copyright

owner.

IBM,

IBM

PC

1 PC-XT1

and

PC-AT

as

used

in

this

manual

are

trade

marks

of

International

Business

Machines

Corporation.

January,

1988

Printing.

CONTENTS:

CHAPTER

1.

CHAPTER

2.

CHAPTER

3.

INTRODUCTION

. . . . . . . . .

MINIMUM

HARWARE

REQUIREMENTS .

MANUAL

OVERVIEW

. . . . . . .

INSTALLATION . . . . . . . . . . . . . .

1.1

Unpacking

.......

.

1.2

Options

Available

...

.

1.3

Card

Installation

........

.

1.3.1

Jumper

Selections

1.3.2

HAL

DS-3200

Radio

Data

Communications

1

2

4

5

Terminal

. . . . . . . . . . . . . . . 7

1.3.3

IBM

PC,

PC-XT,

and

PC-AT

Computers

. . 7

1.

3.

4

IBM-compatible

Computers

. . . . . . . 7

1.4

Installation

of

the

Optional

7910

Modem

Chip

(M2-RPC) . . . . . . . . . . . . . . . . 8

1.

5

RPC-2000

Software

Installation

. . . . . . . 8

CONNECTIONS

. . . . . . . . . . . . . . . . . ·

2.1

Introduction

..........

.

2.2

RPC-2000

Channel

A

Connector

Pin-Out

..

.

2.3

RPC-2000

Channel

B

Connector

Pin-Out

..

.

2.4

Connecting

the

RPC-2000

to

Your

Radio

Equipment

. . . . . . . . . . . . . . . . .

2.4.1

Connecting

Channel

A

to

an

External

.

10

.

10

.

14

.

15

.

16

HF

Modem . . . . . . . . . . . . . . .

16

2.5

2.4.2

Connecting

Channel

A

to

a

VHF

Radio

with

the

M2-RPC

Option

Installed

. .

2.4.3

Connecting

Channel

B

to

a

VHF

Radio

Equipment

Connector

Pin-Outs

• . . .

OPERATION

. . . . . . . . . .

3.1

Loading

the

Software

. . . .

3.2

The

Command

Tree

...

.

3.3

Operating

the

RPC-2000

..

.

3.3.1

Initial

Setup

3.3.2

Linking

Directly

with

Another

Station

. . . . . . . . . . . . . .

3.3.3

3.3.4

3.3.5

Linking

Through

"Digipeaters"

...

The

Callpath

Command . . . . . .

Operation

Using

Repeaters

. . . . .

.

19

.

20

.

21

.

22

.

22

.

23

.

31

•

32

.

33

.

33

.

34

.

35

CHAPTER

4.

CHAPTER

5.

CHAPTER

6.

USER

ADJUSTMENTS

. . . . . . . . · · · · ·

4.1

Modem

Audio

Output

Level

Adjustments

IN

CASE

OF

DIFFICULTY . . . . . . . . . · · ·

5.1

Care

and

Feeding

of

Your

RPC-2000

.

5.2

Typical

Operational

Problems

.....

.

5.3

RFI

Problems

..........

.

5.4

Repair

Procedures

..........

· ·

.

36

• • 37

.

37

38

.

38

40

TECHNICAL

DESCRIPTION • • • • • 4 2

6.1

6.2

Specifications

. . . . . . . . . . . . .

42

.

44

• • • 4 4

44

Circuit

Description

Overview

. . .

6.2.1

PC

Buss

Interface

Circuitry

6.2.2

Timer

and

Interrupt

Circuitry

6.2.3

Serial

Communications

Controller

(SCC)

Circuitry

........

.

6.2.4

Push-to-Talk

(PTT)

and

System

Indicator

Circuitry

. . . . .

6.2.5

AM7910 Modem

Circuitry

.....

6.2.6

RPC-2000

Connector

Pin-Outs

and

Connector

RF

Bypassing

. . . . .

44

45

.

45

.

46

LIMITED

WARRANTY

. . . . . . . . . . . . . . . . . • .

53

ILLUSTRATIONS:

FIGURE

1.

RPC-2000

. . . . . . . . . . . . . . . . . . . 3

FIGURE

2.

RPC-2000

Parts

Placement

. . . . . . . . . . . 6

FIGURE

3.

RPC-2000

Channel

A

Connector

Pin-Outs

. . . . .

14

FIGURE

4.

RPC-2000

Channel

B

Connector

Pin-Outs

. . . . .

15

FIGURE

5.

RPC-2000

Channel

A

Connections

to

the

HAL

ST-8000

HF

Modem . . . . . . . . . . . . .

18

FIGURE 6 •

RPC-2000

Channel

A (M2-RPC

Installed)

to

a

VHF

Radio

. . . . . . . . . . . . . . . . . .

19

FIGURE 7 .

RPC-2000

Channel

B a

to

a

VHF

Radio

. . . . . .

20

FIGURE

8.

The

Command

Tree

. . . . . . . . . . . . . . .

24

FIGURE

9.

PC

Buss

Interface

Circuitry

. . . . . . . . . .

47

FIGURE

10.

Timer

and

Interrupt

Circuitry

. . . . . . . . .

48

FIGURE

11.

Serial

Communications

Controller

(SCC)

Circuitry

. . . . . . . . . . . . . . . . . .

49

FIGURE

12.

Push-to-Talk

(PTT)

and

System

Indicator

Circuitry

. . . . . . . . . . . . . . . . . .

50

FIGURE

13.

RPC-2000

AM7910 Modem

Circuitry

. . . . . . . .

51

FIGURE

14.

Connector

Pin-Outs

and

RF

Bypassing

. . . . . .

52

t

TABLES:

TABLE

1.

RPC-2000

Jumpers

. . . . . . . . . . . . . . . 5

TABLE

2.

RPC-2000

Channel

A

DB-25P

(J8)

I/O

Connections

. . . . . . . . . . . . . . .

11

TABLE

3.

RPC-2000

Channel

A

DB-25P

(J8)

I/O

Ratings

. . . . . . . . . . . . . . . . .

12

TABLE

4.

RPC-2000

Channel

B

DE-9S

(J9)

I/0

Connections

. . . . . . . . . . . . . . . .

13

TABLE

5.

RPC-2000

Channel

B

DE-9S

(J9)

I/0

Ratings

. . . . . . . . . . . . . . . . . .

13

TABLE

6.

Typical

HF

Packet

Tone

Sets

. . . . . . . . . .

17

TABLE

7.

Booting

the

Software

. . . . . . . . . . . . .

23

RPC-2000 INSTRUCTION

MANUAL

INTRODUCTION

This

manual

describes

the

installation

and

operation

of

the

HAL

RPC-2000

Radio

Packet

Controller.

This

interface

is

specifically

designed

for

the

HAL

DS-3200

Radio

Data

Communications

Terminal

or

any

fully

IBM-compatible

PC,

PC-XT,

or

PC-AT

device.

The

RPC-2000

is

a

two

channel

radio

packet

controller

that

adds

fast,

error-free

data

communications

to

radio

links.

The

RPC-

2000

uses

Packet

Radio

protocol

based

on

AX.25

to

provide

error-

free

data

communications

at

rates

from

45

to

4800

BPS.

Two

switchable

channels

are

included

in

the

RPC-2000,

providing

error-corrected

data

communications

capability

on

two

radio

systems.

The

standard

configuration

includes

an

onboard

7910

modem

with

a DE-9S

connector

for

one

packet

channel.

An

optional

7910

modem

or

an

external

modem

can

be

used

with

the

DB-25P

connector

for

the

second

packet

channel.

Thus,

a

high-

performance

HF

modem

such

as

the

HAL

ST-8000

may

be

directly

connected

to

the

RPC-2000

for

optimum

HF

performance.

The

RPC-

2000

does

not

require

use

of

any

of

the

asynchronous

RS-232C

serial

I/O

ports

of

the

terminal

or

PC-compatible.

Rather,

the

RPC-2000

makes

use

of

the

synchronous

data

ports

of

the

system.

The

RPC-2000

is

driven

entirely

from

disk-based

software

that

runs

in

the

DS-3200

or

PC-compatible.

This

software

is

specifically

designed

to

be

very

user

friendly.

All

features

and

modes

are

chosen

from

on-screen

menus.

Communication

parameters

such

as

connect

status,

call

signs,

paths,

data

rate,

and

others

are

shown

by

on-screen

status

indicators.

The

exclusive

HAL

CALLpath

feature

provides

a

user-programmable

directory

of

frequently

used

call

signs

and

connect

paths.

In

addition,

the

RPC-2000

provides

disk

file

transfer

and

storage.

The

mode,

tones,

and

data

rate

of

the

internal

modem(

s)

are

controlled

by

keyboard

commands.

The

software

is

furnished

with

the

RPC-2000

at

no

additional

cost.

The

RPC-2000

includes

a

large

number

of

features,

giving

a

great

deal

of

flexibility

to

the

operator.

It

is

suggested

that

the

operator

particularly

read

all

of

Chapters

1

and

2

before

installing

the

RPC-2000

circuit

board

and

Chapter

3

before

attempting

the

use

of

the

board

and

software.

CHAPTER

1 INSTALLATION

PAGE

2

MINIMUM

HARDWARE

REQUIREMENTS

The

RPC-2000

Radio

Packet

Controller

board

is

designed

to

be

used

in

the

HAL

DS-3200

Radio

Data

Communications

Terminal

or

in

an

IBM

PC, PC-XT,

or

PC-AT

computer.

The

RPC-2000

will

also

work

well

with

fully

IBM-compatible

computers.

Due

to

possible

differences

in

the

computer

BIOS

(Basic

Input/

Output

System)

ROM

integrated

circuits

used

in

IBM-compatible

computers,

HAL

Communications

Corp.

cannot

guarantee

the

RPC-2000

will

work

in

ALL

"IBM-compatible

computers".

Minimum

System

Requirements:

PC-DOS

or

MS-DOS

Version

2.

1

or

later.

Full-length

(13

1/4")

card

slot.

Two

360K

floppy

disk

drives

or

hard

disk

drive.

512K

RAM.

MANUAL

OVERVIEW

This

manual

describes

the

installation

and

operation

of

the

HAL

RPC-2000

Radio

Packet

Controller.

In

the

following

chapters

you

will

learn

how

to

install,

connect,

and

operate

your

RPC-2000.

Chapter

1

covers

RPC-2000

installation;

this

chapter

should

be

CAREFULLY

reviewed

before

installing

the

RPC-2000

into

your

DS-

3200

or

computer.

Also

discussed

is

the

installation

of

the

system

software.

Chapter

2

discusses

connecting

the

RPC-2000

to

your

radio

equipment

and

an

external

modem

(if

used).

RPC-2000

I/O

ratings

are

also

presented

in

this

chapter.

PLEASE

read

this

chapter

carefully

as

possible

damage

to

your

DS-3200

or

computer

and

your

radio

equipment

can

occur

if

the

connections

are

incorrectly

made.

Chapter

3

discusses

loading

system

software

and

overall

operation

of

the

RPC-2000.

Chapter

4

summarizes

user

adjustments

to

the

RPC-2000.

Chapter

5

provides

some

assistance

should

technical

problems

arise

with

the

RPC-2000.

Chapter

6

contains

the

specifications,

a

brief

technical

description

of

the

RPC-2000,

and

schematic

diagrams.

The

last

section

of

this

manual

presents

the

HAL

Communications

Corp.

1

YEAR

Limited

Warranty.

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CHAPTER

1

1.1

Unpacking

INSTALLATION

CHAPTER

1

INSTALLATION

PAGE

4

When

unpacking

your

new

RPC-2000,

carefully

inspect

the

shipping

carton,

the

circuit

board,

and

the

software

diskette

for

shipping

damage.

Any

evidence

of

damage

should

be

immediately

reported

to

your

supplying

dealer

or

shipping

carrier.

Be

sure

to

save

all

packing

materials

if

damage

is

found

-

the

shipping

carrier

will

want

to

inspect

them

for

any

insurance

claim.

Check

the

accessories

against

the

following

list.

If

any

are

found

missing,

double-check

the

packing

for

loose

parts

and

notify

your

dealer

or

HAL

Communications

Corp.

immediately

so

that

the

shortage

may

be

rectified.

Please

be

sure

to

specify

the

HAL

part

number!

Packing

List:

1 -

934-02000

1 -

865-02001

1 -

870-02001

1 -

333-20090

1 -

333-51218

1 -

333-10250

1 -

333-51228

2 -

333-74564

RPC-2000

Circuit

Board

RPC-2000

Software

Diskette

RPC-2000

Instruction

Manual

DE-9P

Connector

DE-9P

Connector

Shell

DB-25S

Connector

DB-25P

Connector

Shell

Connector

Shell

Hardware

Kits

1.2

Options

Available

The

only

option

available

for

the

RPC-2000

is

the

M2-RPC

Second

On-Board

Modem

Option.

This

consists

of

a

7910

I.C.

modem

designed

to

plug

into

the

U20

socket

on

the

RPC-2000

circuit

board.

This

optional

modern

I.C.

is

used

for

Channel

A

on

the

DB-

25P

connector.

Please

contact

your

HAL

dealer

or

HAL

Communications

Corp.

directly

for

the

M2-RPC.

1.3

Card

Installation

The

RPC-2000

is

constructed

on

one

full-length

IBM

plug-in

card.

It

may

be

inserted

into

any

unused

full-length

card

slot

in

the

DS~3200

Radio

Data

Communications

Terminal

or

IBM

PC,

PC-XT,

PC-

AT,

or

fully

IBM-compatible

computer.

""

CHAPTER

1 INSTALLATION

PAGE

5

1.3.1

Jumper

Selections

Before

installing

the

RPC-2000

in

your

DS-3200

or

computer,

please

check

to

see

that

the

jumpers

on

the

RPC-2000

circuit

board

are

set

correctly.

The

available

jumpers

are

shown

in

Table

1

and

their

positions

are

shown

in

Figure

2.

JUMPER

TABLE

1

RPC-2000

JUMPERS

POSITIONS

FACTORY

SETTINGS

-----------------------------------------------------------------

CHANNEL

A PTT

TIME-OUT

DEFEAT

(J1)

CHANNEL

B PTT

TIME-OUT

DEFEAT

(J2)

CHANNEL

A

SELECT

(J3)

EXTERNAL

CLOCK

SELECT

(J4)

ADDRESS

SELECT

ADR

(J5)

INTERRUPT

REQUEST

SELECT

IRQ

(J7)

ON/OFF OFF

FACTORY

PRE-SET

RESERVED FOR

FUTURE

USE

S1/S2

S1

IRQ2/IRQ3/IRQ4

IRQ2

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Hal Communications RPC-2000 User manual

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