CONTENTS

  Title Page

  Copyright Page

  Preface

  1      Introduction

  1.1     DTQNA Description

  1.2     System Block Diagram Discussion

  1.3     Physical Description
    1.3.1      DTQNA Controller
    1.3.2      Modem Module
    1.3.3      Internal and External Kits
    1.3.4      Internal Parts Kit
    1.3.5      BA23A, BA123, and H9642J External Parts
    1.3.6      BA2XX and H9644 External Modem Parts

  1.4     DTQNA Specifications

  2      Unpacking Instructions

  2.1     General Information

  2.2     Internal Parts Shipping Container Unpacking Instructions

  2.3     DTQNA-BB and DTQNA-BE External Parts Shipping Container Unpacking Instructions

  2.4     DTQNA-BC External Parts Shipping Container Unpacking Instructions

  2.5     Repacking

  3      Initial Preparation

  3.1     Module Unpacking
    3.1.1      Controller Inspection
    3.1.2      Internal Systems
    3.1.3      External Systems

  4      Internal Parts Installation

  4.1     BA23A, BA123, and H9642J Internal Parts Installation
    4.1.1      Disassembly
    4.1.2      Installation Procedure
    4.1.3      Assembly

  4.2     BA2XX and H9644 Internal Parts Installation
    4.2.1      BA2XX and H9644 Disassembly
    4.2.2      Installation Procedure
    4.2.3      Assembly

  5      External Parts Installation

  5.1     DTQNA-BB and DTQNA-BE Installation Instructions

  5.2     DTQNA-BC Installation Instructions

  6      Configuration and Boot ROM

  6.1     Configuration and Boot Routines

  6.2     Configuration Parameters

  6.3     Configuration Code Procedure

  6.4     Configuration Access

  6.5     Parameter Descriptions
    6.5.1      Physical Parameters
    6.5.2      MAC Parameters
    6.5.3      LLC Parameters
    6.5.4      DLL Parameter Descriptions

  6.6     Error Messages

  7      Diagnostics

  7.1     Testing

  7.2     Diagnostic Distribution
    7.2.1      General Instructions
    7.2.2      Bootstrapping Procedure

  7.3     Verification Testing

  7.4     Service Testing
    7.4.1      Functional Tests
    7.4.2      Exerciser Tests
    7.4.3      Utility Tests

  8      Maintenance

  8.1     Field Replaceable Units

  8.2     Troubleshooting Aids

  8.3     VAX Q-bus Internal Modem Fault Isolation

  8.4     VAX Q-bus External Modem Fault Isolation

  8.5     Error Messages

  8.6     Replacement

  A   DTQNA RF Loopback Tester

  A.1     Theory of Operation
    A.1.1      Modem Channel Select Test
    A.1.2      Modem Transmit-Level Test
    A.1.3      Modem Receiver-Level Test

  A.2     Tester Block Diagram

  A.3     Detailed Description
    A.3.1      AC Supply
    A.3.2      Self-Test Mode
    A.3.3      RF Test Mode Use
    A.3.4      Headend Remodulator Mode

  A.4     Physical Description

  A.5     Accessories

  A.6     Service

  A.7     Compliance Ratings
    A.7.1      UL/CSA
    A.7.2      FCC
    A.7.3      Environmental
    A.7.4      Broadband RF

  A.8     Indicators/Switches/Connectors Description

  B   DTQNA Positioning

  FIGURES

  1-1        VAX Q-bus System with MAP Token-Passing Network Architecture

  1-2        DTQNA Implementation of ISO/OSI Model

  1-3        DTQNA System Block Diagram

  1-4        DTQNA Controller

  1-5        Modem Module

  1-6        Internal Parts

  1-7        BA23A, BA123, and H9642J DTQNA with the External Modem Parts

  1-8        BA2XX and H9644 External Parts

  2-1        Internal Parts Shipping Container Contents

  2-2        DTQNA-BB, DTQNA-BE External Parts Shipping Container Contents

  2-3        DTQNA-BC External Parts Shipping Container Contents

  3-1        Module Unpacking

  3-2        Controller Switches and Jumpers

  3-3        CSR Switch Settings

  3-4        Interrupt Switch Location and Settings

  4-1        Internal Parts Installation

  4-2        Choke and Clip Installation

  4-3        Internal Cable Installation

  4-4        BA2XX Internal Parts Installation

  4-5        Bulkhead Gap Filler Panel Installation

  5-1        DTQNA-BB and DTQNA-BE with External Modem Installation

  5-2        DTQNA-BB and DTQNA-BE Interconnecting Cabling Installation

  5-3        DTQNA-BC External Modem Installation

  5-4        DTQNA-BC Interconnecting Cabling Installation

  6-1        DTQNA Configuration Functional Diagram

  6-2        Firmware versus DTQNA NVRAM Relationship

  6-3        Config/BootROM Block Diagram

  7-1        Diagnostic Flowchart

  7-2        Loopback and Test Plug Installation

  8-1        DTQNA Troubleshooting Flowchart 1

  8-2        DTQNA Troubleshooting Flowchart 2

  8-3        DTQNA Troubleshooting Flowchart 3

  8-4        DTQNA Troubleshooting Flowchart 4

  8-5        DTQNA Troubleshooting Flowchart 5

  8-6        DTQNA Parts Controls and Indicators

  8-7        DTQNA Modem and Controller LEDs

  8-8        External Modem Assembly and Disassembly

  8-9        RF Screen Removal

  8-10       DC-to-DC Converter Installation

  A-1        DTQNA RF Loopback Tester Block Diagram

  A-2        DTQNA RF Loopback Tester

  A-3        DTQNA RF Tester Controls and Indicators

  TABLES

  1 VAX Q-bus Systems

  1-1        DTQNA Kits

  2-1        DTQNA Unpacking Instructions

  3-1        Controller Switches and Jumpers

  4-1        Internal Parts

  4-2        BA23A, BA123, and H9642J Internal Parts

  4-3        BA2XX and H9644 Internal Parts

  5-1        DTQNA with External Modem Parts Kits

  5-2        External Parts

  5-3 DTQNA-BC Parts Kit

  7-1        Verify Mode Functional Tests

  8-1        DTQNA Field Replaceable Units

  8-2        Modem Indicators

  8-3        Controller Module Status LEDs

  8-4        Error Messages

  A-1        TX Power-Level Settings

  A-2        Channel Pair Settings

  A-3        RF Loopback Tester Controls and Indicators