TM11-458 COMMON-BATTERY TELEPHONE EQUIPMENT
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INDEX
SECTION I - General
SECTION II - Comparison of local-battery and common-battery systems |
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SECTION III - The common-battery telephone |
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SECTION IV - Subscriber loops |
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SECTION V - Telephone relays |
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SECTION VI - Common-battery line circuits |
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SECTION VII - Common-battery cord circuits |
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SECTION VIII - Trunk circuits |
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SECTION IX - Selective ringing |
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SECTION X - Auxiliary circuits |
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SECTION XI - Distributing frames |
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SECTION XII - Central office protection |
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SECTION XIII - Power equipment |
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SECTION XIV - Nonmultiple and multiple switchboards |
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SECTION XV - Commercial manual switching |
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APPENDIX I AND II |
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INDEX |
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