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RJ21x Wiring for North America
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models, and incorrect connection may result in damage to cards and/or
phones.
Legacy Link Cards use only the first 16 pairs of wires of the 25-pair cable
for the handsets. The remaining pairs have no connection and are not
used.
Figure 32
Line Connector (RJ21x) Wiring for North America
Содержание 3C10122 - NBX Business Telephone
Страница 20: ...20 ABOUT THIS GUIDE...
Страница 80: ...80 CHAPTER 1 INTRODUCTION...
Страница 120: ...120 CHAPTER 2 INSTALLING SYSTEM HARDWARE COMPONENTS...
Страница 142: ...142 CHAPTER 4 ANALOG LINES...
Страница 162: ...162 CHAPTER 8 T1 DIGITAL LINE CARD...
Страница 192: ...192 CHAPTER 10 CONFIGURING IP TELEPHONY...
Страница 198: ...198 CHAPTER 11 TROUBLESHOOTING...
Страница 224: ...224 APPENDIX A SPECIFICATIONS...
Страница 230: ...230 APPENDIX B CIRCUIT PROVISIONING...
Страница 240: ...240 APPENDIX D OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS...