General Troubleshooting Process

PRI card User Guide

Introduction

This chapter provides the processes and procedures to help solve PRI card problems. The steps are generally presented in the recommended chronological order.

At the first indication of a problem, perform the steps below. The recovery options are listed in the recommended chronological order (from simplest and most likely to most complex and least likely cause).

1.Verify that your site meets the specifications (Environmental Requirements, Physical

	Characteristics, Power Requirements, On-Board Hardware Resources, Host Interface,	CSU/T1
	LEC Interface Standards, and Primary Rate ISDN Standards) earlier in this manual.
2.	Verify proper hardware installation procedure (earlier in this manual).
3.	Check the LEC cabling (earlier in this manual).

4.Check the Startup Self Test, refer to the Startup Self Test LED Patterns in the following section.

5.Check the Run Time Test, refer to the Run Time LED Status Indicators in the following section .

6.Re-try the failed operation.

7.Call your LEC representative and/or your ISDN service provider. Have the information that you recorded during hardware installation available.

8.Call Multi-Tech’s Tech Support department.

Startup Self Test LED Patterns

Each time the PRI card is reset (i.e., the CommPlete is powered on or the system reset is asserted) the PRI card firmware executes a series of startup self-test routines. The routines perform 8 basic tests which require a total of approximately 10-15 seconds to complete, and during which the yellow LEDs report the progress of the tests. The yellow LEDs display a test status pattern (the applicable LED is lit) as each test executes.

As each test passes, its pattern is displayed by the yellow LEDs. The subsequent test then begins execution and its pattern is likewise displayed. This process continues until the final test executes successfully, after which only the Frame Sync LED is lit for a short time, indicating successful completion of the startup self- test phase.

If any test fails, its LED pattern is flashed continuously at a 1/2 second rate and the PRI card will suspend further operations until the problem is fixed.

Run Time LED Status Indicators

On successful completion of the startup self-tests, the yellow LEDs display the real-time operating status of the PRI card hardware and software. In this mode, the LED meanings are defined by a COMM Engine

12	CommPlete Communications Server

PRI card User Guide

Introduction