INTRODUCTION

Section 5 References-Lists and describes other related documentation

Section 6 Abbreviations and Acronyms-Lists and describes abbreviations and acronyms frequently encountered in System 25 documentation

Appendix A. System Wiring Table–Lists pinouts and wiring used with System 25

Appendix B. Parts Listing—Lists all related parts of System 25

Appendix C. System Additions and Changes-Describes how to make additions to an existing system

Appendix D. System Upgrade–Describes how to upgrade an R1V1 R1V2 or R2V1 release of System 25 to an R3 release

Appendix E. System Codes and Data Entries–Lists all default codes and data entries for administering the system

Appendix F. Administration Tables–Lists all error messages that can occur when the system is being administered

FCC PRECAUTIONS

Electromagnetic fields radiating from the system cabinets may generate noise in other communications equipment The technician must be sure that all cabinet panels and covers are securely in place after performing maintenance

Caution: Electrostatic discharge can destroy or severely damage integrated circuits or CPs.

The maintenance technician MUST ALWAYS WEAR A WRIST GROUNDING STRAP when handling CPs The cord must be attached to the grounding block at the back of the cabinet or to a front-cover retainer screw Damage to integrated circuits caused by electrostatic discharge may not be immediately apparent

Caution: The wrist grounding strap must not be clipped to any cabinet location other than the grounding block.

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November 1995

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ADTRAN 25 manual FCC Precautions, Introduction