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Telpac Paclink. DCC 2003. Telpac and Paclink… Streamlined AX.25 Packet Radio Server and Client for a Full Service Ham Radio Messaging Network. Victor Poor, W5SMM Rick Muething, KN6KB. Telpac Paclink. Introduction and Overview. DCC 2003. Background on Winlink 2000 (WL2K)

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Telpac

Paclink

DCC 2003

Telpac and Paclink…Streamlined AX.25 Packet Radio Server and Client for a Full Service Ham Radio Messaging Network

Victor Poor, W5SMM

Rick Muething, KN6KB


Introduction and overview

Telpac

Paclink

Introduction and Overview

DCC 2003

Background on Winlink 2000 (WL2K)

Motivation for Telpac and Paclink

Development Approach

Telpac ….The TELnet - PACket bridge for WL2K

Simple setup examples

Paclink …. A Radio client for E-mail

Configuration and operation examples

Using the AGW Packet Engine

Applications

Summary/Questions

Demo of Paclink and Telpac (time permitting)


Winlink 2000 System

Telpac

Paclink

What is WL2K?

DCC 2003

  • Introduced in 2000 (DCC 2000) WL2K is a modern software implementation of a Global ham message system capable of conventional BBS functions with significant extensions for the Mobile user.

  • Biased toward the mobile user.

    • Conventional BBS functions with routing and store and forward for radio and E-mail messages.

    • No “Home BBS” designation required (global message mirroring)

    • Optimized to capitalize on Internet forwarding when possible

    • On demand WX products and other Web information.

    • E-mail with text/compressed binary attachments

    • Position reporting and request from radio and Internet

  • Currently 4300 Users (HF Pactor, Packet, Telnet, Web) delivering over 150,000 messages per month by 36 PMBOs.


Winlink 2000 System

Telpac

Paclink

DCC 2003

WL2K Central Server (CMBO)

Internet

Telnet

Telnet

Telpac

node

WL2K PMBO

(Telnet Server)

WL2K PMBO

Radio

(Pactor 1-3, AX.25 packet)

AX.25 Packet

NPMBO BBS

Paclink

USERS

AirMail

BBS Programs

Keyboard Terminals

User Client


Telpac

Paclink

Motivation for Telpac

and Paclink

DCC 2003

WL2K has been very well accepted by the mobile HF community

Many requests to expand local WL2K coverage (VHF/UHF)

Emergency communications

Small portable terminals

Two obstacles for widespread VHF/UHF expansion:

The standard PBMO setup requires a considerable

computer, radio equipment and synchronized data base.

Telpac provides a simple Telnet to Packet bridge

The user client program has to work with most available

TNCs and interface with existing E-mail clients.

Paclink provides a user client that meets these objectives


Telpac

Paclink

Development

Approach

DCC 2003

Leverage existing standardized interfaces & protocols:

Existing WL2K Telnet Servers via Internet/Telnet

Standard TCP communication between components

Standard mail format and server protocols:

MIME message storage

POP3 and SMTP servers

Capture TNC drivers using a standardized TCP interface

AGW Packet Engine

Use modern development environment and tools for improved

productivity and reduced support

Telpac: VB6, Paclink: VB.NET


Telpac

Paclink

Telpac…WL2K’s

Telnet <> Packet Bridge

DCC 2003

Key Features:

Easy set up

No local database

Multiple active connections

Supports all WL2K functions

AGW Packet Engine support


Telpac

Paclink

Telpac…

15 Minute Setup…Step 1

DCC 2003

Install the AGW Packet Engine…

These 2 menus setup the TNC


Telpac

Paclink

Telpac…

15 Minute Setup…Step 2

DCC 2003

Install Telpac…

These 2 menus set up

the Telpac bridge.

Customize your log-on

banner and beacon...

You’re a WL2K

Telpac node!


Telpac

Paclink

Paclink… A Windows

Radio E-mail Client

DCC 2003

Key features:

WL2K, FBB or MBL BBSs

E-mail user interface

Mixed radio/E-mail

Packet Engine support


Telpac

Paclink

One-to-One E-mail Account to Paclink Channel Concept

DCC 2003

Each account on the E-Mail client (e.g. Outlook)

handles traffic for one Paclink channel

E-mail client

accounts

Paclink channel setup

Paclink ports setup

Mail Acct:

MLB_BBS

POP3

SMTP

[AGWPE 1] [ W4MLB via COA1 ] [KN6KB] [MLB_BBS/****]

PACTOR

Mail Acct:

BUD_DIRECT

POP3

SMTP

[AGWPE 3] [ N0IA-1] [KN6KB-1] [BUD_DIRECT/******]

PACKET 1

AGW 2

ENGINE 3

POP3

SMTP

Mail Acct:

WL2K_PACTOR

[PACTOR] [ N8PGR ] [W5SMM] [ WL2K_PACTOR/*****]

TELNET

Mail Acct:

WL2K_TELNET

POP3

SMTP

[TELNET] [ K4CJX Telnet ] [KN6KB-1] [WL2K_TELNET/****]


Telpac

Paclink

Paclink Channel Setup

DCC 2003

Name and password match E-mail client

Each Paclink channel

corresponds to one

E-mail client account

Channel Properties Port Properties


Paclink’s User Interfaces

Telpac

Paclink

DCC 2003

Paclink’s own simple

terminal window for

keyboard interfaces

Your favorite E-mail

client for normal BBS

messages.


Telpac

Paclink

The AGW Packet Engine

with Telpac and Paclink

DCC 2003

By George Rossopoulos, SV2AGW

Standardized TCP interface supports most

TNCs Using KISS mode.

Supports sound card TNCs (1200 & 9600 baud)

Shares TNCs across applications

Paclink, Telpac, BBS, APRS, Terminal, Monitor

Allows remote operation via TCP link

TNC’s may be separated from application

TCPIP

AGW Packet

Engine

Sound

Card

TNC

TNC


Telpac

Paclink

Telpac and Paclink Applications

DCC 2003

Telpac as a conventional BBS for “Last Mile” wireless connectivity

Paclink as an end user client for BBS access (WL2K, FBB etc)

Paclink as the an emergency radio link for Internet E-mail

Paclink provides the radio connection to a WL2K Telpac node

Emergency field operators use their existing E-mail client

but with a “radio” account instead of default account

Multiple operators can share a single Paclink and its TNCs/radios

Paclink <> Paclink transfers (keyboard or via E-mail clients)


Telpac

Paclink

Demo

(time permitting

or in the demo room)

DCC 2003

1) Connection to a WL2K Telpac node:

Send request via E-mail for a text WX report

Outlook Express > Paclink (local TCP)

Paclink > Telpac node (AX.25 packet)

Telpac node > WL2K Telnet server (Internet Telnet)

Telnet Server > WL2K Bulletin Processor

…..and return….

2) Paclink to Paclink (keyboard and message via Outlook Express)


Telpac

Paclink

Summary/Questions

DCC 2003

Telpac and Paclink are examples of rapidly developed

modern Ham software that leverage standard protocols

and existing user and TNC interfaces.

Simplified setup and minimal equipment requirements mean

expanding the wireless infrastructure can be done quickly

with minimum expense.

Your feedback and comments are appreciated to help us expand

these programs to new applications.

Pick up a Telpac/Paclink CD!

Thank you!


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