Operating instructions
Digital Telephone System
General Description - Installation - Programming Manual
GENERAL DESCRIPTION – INTRODUCTION .................................................................................................10
FCC RULES AND REGULATION......................................................................................................................10
Ringer Equivalence Number...........................................................................................................................10
Notification of the Telephone Company ..........................................................................................................10
Direct Connection to a Party-Line or Coin Operated Telephone Line is Prohibited. .........................................10
Incidence of Harm to the Telephone Lines......................................................................................................10
Compatibility of the Telephone Network and Terminal Equipment. .................................................................11
Radio Frequency Interference.........................................................................................................................11
CTR 21 (98/482/EC) DECLARATION NETWORK COMPATIBILITY.................................................................11
ISDN INSTALLATION .......................................................................................................................................11
KEY HIGHLIGHTS OF THE TD-1648I/TDS-600 SERIES INCLUDE: ................................................................13
Economy and Efficiency .................................................................................................................................13
Easy Installation .............................................................................................................................................13
Easy Maintenance ..........................................................................................................................................13
Flexibility of System Applications....................................................................................................................13
Varied Extension Alternatives.........................................................................................................................13
Digital Twin Port .............................................................................................................................................13
Hybrid Phone ..............................................................................................................................................14
Full ISDN features.......................................................................................................................................14
Liquid Crystal Display..................................................................................................................................14
Mechanical Specifications (Key Service Unit) .................................................................................................16
Mechanical Specifications (Battery Back Up Housing) ....................................................................................16
Environmental Specifications..........................................................................................................................16
FEATURES........................................................................................................................................................17
System Features.............................................................................................................................................17
DISA..................................................................................................................................................................17
SYSTEM PROGRAMMING................................................................................................................................17










