Related Manuals for Digital Equipment DEC WANcontroller 622
Summary of Contents for Digital Equipment DEC WANcontroller 622
- Page 1 DEC WANcontroller 622 Problem Solving Part Number: EK–A0550–PS.001 © Digital Equipment Corporation. 1992. All Rights Reserved.
- Page 2 Users are referred to these cards if there is DEC Network Integration Server Problem Solving a possible problem with the line card and its components. DECNIS Problem Solving Manuals DEC Network Integration Server Problem Solving: outlines NCL commands for checking software problems. DECNIS Installation and Service Manual: includes a problem solving section which outlines procedures for checking hardware problems.
- Page 3 NIC LED States The LED display shows the state of the NIC when the module self-test or system self-test was last run: see the Installation and Service Manual for your DECNIS for more details. Module self-test in progress. Slow flash flash The NIC is either waiting to load or is load- Fast flicker...
- Page 4 Problem Solving Flowchart – note the NIC LED state and follow the procedure indicated ATTENTION FAULT READY Fast Flicker The problem could be a There is a possible problem loose cable connection. Check the LED display on with the NIC. Check all extension cables the processor card, then see are properly connected.
- Page 5 Module Loopback Test Unfasten screws 1. Attach the 50-way loopback connector to the port to be tested. Loopback connector 2. Run the module loopback test: Move the NIC Move the NIC Wait until the hot- switch up. switch down. swap LED lights up (approx.
- Page 6 NCL Loopback Test NCL> 1. Start NCL on the load host. 2. Attach the cable loopback connector to the end of the synchronous or adapter cable that you are testing. Test the end furthest from the NIC. Unfasten screws Loopback connector 3.
- Page 7 Check the Synchronous Cables When no software is loaded, a faulty cable can be detected only by substituting with a new cable: 1. Replace a section of synchronous cable with a new cable. 2. Attempt to load the software. 3. If loading is successful, you have solved the problem (the re- placed cable is faulty).
- Page 8 Adapter cable Refer to the panel for attaching cables in the Extension cable DEC WANcontroller 622 Cabling Information and Specifications card. If replacing the faulty component does not solve the problem, check the Installation and Service Manual for your DECNIS: do not perform any procedures in the manual unless you are a service per- son (see the Installation and Service Manual for your DECNIS).
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