CONTENTS Title Page Copyright Page How to Use This Manual Audience Structure Associated Documentation Conventions Part I Diagnosing Problems 1 Introduction to Problem Solving 1.1 Using This Manual 1.2 Using the Network Control Program (NCP) 1.3 Using the CIT Control Program (CITCP) 1.4 Additional Facilities 2 Preparations 2.1 Enabling Event Logging 3 Identifying Problems 3.1 First Steps 3.2 The DEC CIT Server 100/500 IVP Fails 3.2.1 Checking the Physical Link 3.3 Using the DEC CIT Applications Interface IVP to Diagnose Problems 4 Identifying Problems with the Load Host 4.1 DEC CIT Server 100/500 Will Not Load 4.2 DEC CIT Server 100/500 Fails to Communicate with the Load Host 5 Fixing Problems with Your CIT System 5.1 The Link to the PBX Is Down 5.2 User Requests Are Timed Out 5.3 The CIT Server Is Unavailable 5.3.1 Resource Limit on the DEC CIT Server 100/500 Exceeded 5.3.2 Insufficient DECnet Resources 5.3.3 Process Quotas Are Insufficient 6 The DEC MicroServer Hardware 6.1 The Display Panel on the DEC MicroServer 6.1.1 Position and Use 6.1.2 Power Up Sequence 6.1.3 Dump Sequence 6.1.4 Dump Failure 6.1.5 Halt Codes 6.1.6 Error Codes 6.2 Diagnosing DEC MicroServer Hardware Problems 6.2.1 The DEC MicroServer Does Not Power Up 6.2.1.1 Make Sure the Power Cord Is Correctly Connected 6.2.1.2 Check the Fuse in the Mains Plug 6.2.1.3 Check the DEC MicroServer's Circuit Breaker 6.2.1.4 Check the Mains Socket 6.2.1.5 Check the Power Cord 6.2.2 Connecting to the Remote Modem Fails 6.2.2.1 Check the Dialing Information 6.2.2.2 Check that Local and Remote Modems are Compatible 6.2.2.3 Check Cables 6.2.2.4 Check Local Modem 6.2.2.5 Check Communications Link and Remote Modem 6.2.3 Faulty Synchronous Port Part II Additional Problem Solving Facilities 7 Using the Remote Console 7.1 Connecting to the DEC MicroServer 7.2 Remote Console Service Password 7.2.1 Setting a Service Password 7.2.2 Changing the Password 7.2.3 Clearing a Password 7.3 Stop the DEC CIT Server 100/500 Software 7.4 Test the DEC MicroServer 7.4.1 Data Loopback Tests 7.4.2 Modem Signal Tests 7.4.3 Cable Type Tests 7.4.4 Soak Testing the DEC MicroServer System 7.5 Obtaining Information on the DEC MicroServer's Status 7.6 Reloading the DEC CIT Server 100/500 Software 7.7 Dumping the Contents of Memory 7.8 Obtaining Help 7.9 Detaching the Remote Console 7.10 Command Summary 8 Performing Loopback Tests 8.1 Testing the Communications Link Between the Server Node and the PBX 8.2 Testing DECnet Logical Links 8.2.1 Checking the Path Between a Load Host and the DEC CIT Server 100/500 8.2.2 Checking the Path from the DEC CIT Server 100/500 to a Remote Node 8.3 Testing the Ethernet Circuit 8.4 DEC MicroServer Loopback Testing 8.4.1 Loopback Points 8.4.2 General Test Procedure 8.4.3 Stop the DEC CIT Server 100/500 Software 8.4.4 DEC MicroServer I/O Port Testing 8.4.5 Adapter Cable and Modem Cable Testing 8.4.5.1 Testing the Modem Cable 8.4.6 Local Modem Testing 8.4.7 Remote Modem Testing 8.4.8 What to Do Next 8.5 Loopback Testing Summary 9 Examining the Line Counters 9.1 Displaying the Line Counters 9.2 Clearing the Counters 10 Starting and Dumping the System 10.1 Booting the System 10.1.1 Plugging in the Power Cord 10.1.2 Using the Remote Console 10.2 Dumping and Restarting the System 10.2.1 Using the DUMP Switch 10.2.2 Using the Remote Console Part III Reference Information A Reporting a Problem to Digital A.1 Copying the System Dump Files B DEC CIT Messages B.1 DEC CIT Error Messages B.2 DEC CIT Events B.2.1 3.3 Event Messages C Adapter Cable Pin Signals C.1 Supported Adapter Cable Pin Signals C.1.1 RS-422 Adapter Cable: 37-Way Pins C.1.2 V.24 Adapter Cable: 25-Way Pins C.1.3 V.24/RS-232-C Adapter Connector: 25-Way Pins FIGURES 6-1 Resetting the Circuit Breaker 6-2 Checking the Voltage Selector 7-1 Loopback Points on a Communications Path 7-2 Loopback Points That Can Be Used with the Modem Signal Test 8-1 LOOP NODE Tests 8-2 Ethernet Loopback Testing 8-3 The Parts of a Synchronous Communications Link 10-1 Connecting the Power Cord to Start the System 10-2 The Position of the DUMP Switch on the DEC MicroServer's Rear Panel TABLES 6-1 Values That Can Appear on the Display During Power Up 6-2 Values That Can Appear on the DEC MicroServer Display During a Dump 6-3 Error Codes That Can Appear on the DEC MicroServer Display Panel 7-1 Summary of Remote Console Commands 8-1 Faults Indicated by Loopback Testing 8-2 Summary of Loopback Testing 10-1 Using the Remote Console to Load the System 10-2 Using the Remote Console to Dump the System