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Additional Documents ………………………………………………………………………………… 3-86
7401D and 7401 Plus Voice Terminals ……………………………………………………… 3-91
Applications …………………………………………………………………………………………… 3-91
Special Operational Characteristics ………………………………………………………………… 3-91
Physical Features ……………………………………………………………………………………… 3-92
Distance Limitations …………………………………………………………………………………… 3-94
Power Requirements ………………………………………………………………………………… 3-95
Switch Administration ………………………………………………………………………………… 3-96
Power Failure Operation ……………………………………………………………………………… 3-100
FCC Registration ……………………………………………………………………………………… 3-100
UL and CSA Approval ………………………………………………………………………………… 3-100
Hearing Aid Compatible ……………………………………………………………………………… 3-100
7401D Equipment PECs & COMCODES …………………………………………………………… 3-100
7401 Plus Equipment with PECs and COMCODES ……………………………………………… 3-101
Adjuncts ………………………………………………………………………………………………… 3-103
Additional Documents ………………………………………………………………………………… 3-104
7402 Plus Voice Terminal ………………………………………………………………………… 3-107
Applications …………………………………………………………………………………………… 3-107
Physical Features ……………………………………………………………………………………… 3-107
Distance Limitations …………………………………………………………………………………… 3-111
Power Requirements ………………………………………………………………………………… 3-111
Switch Administration ………………………………………………………………………………… 3-112
Power Failure Operation ……………………………………………………………………………… 3-115
FCC Registration ……………………………………………………………………………………… 3-115
UL and CSA Approval ………………………………………………………………………………… 3-115
Hearing Aid Compatible ……………………………………………………………………………… 3-115
7402 Plus Equipment PECs and COMCODES …………………………………………………… 3-115
Adjuncts ………………………………………………………………………………………………… 3-116
Additional Documents ………………………………………………………………………………… 3-117
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