Table of Contents
Advertisement
1
Regulatory Information (U.S.A.) ...................................................................................................1-3
Telephone Company Notification ........................................................................................1-3
Incidence of Harm ......................................................................................................................1-3
Changes in Service .....................................................................................................................1-3
Maintenance Limitations .........................................................................................................1-4
Hearing Aid Compatibility ......................................................................................................1-4
UL/CSA Safety Compliance .....................................................................................................1-4
Notice of Compliance ...............................................................................................................1-4
Toll Fraud and DISA Disclaimer ....................................................................................................1-4
2
DHS-L General Description ............................................................................................................2-3
System Technology ...................................................................................................................2-3
System Components .................................................................................................................2-3
External Components ...............................................................................................................2-4
System Administration .............................................................................................................2-4
Key Service Unit ..........................................................................................................................2-5
Power Supply ...............................................................................................................................2-7
Main Processing Board (MPB) ................................................................................................2-8
Miscellaneous Service Board (MISB) ....................................................................................2-10
Peripheral Cards .........................................................................................................................2-12
Direct Station Selector (DSS) Console ................................................................................2-17
2-Port Analog Adapter .............................................................................................................2-18
Two-Port Analog Expander ....................................................................................................2-19
DHS-L Technical Specification Tables ........................................................................................2-20
Preparation for DHS-L Installation ..............................................................................................2-26
Installation Overview ................................................................................................................2-26
General Site Considerations ...................................................................................................2-27
Necessary Tools and Supplies ...............................................................................................2-28
DHS-L Installation ..............................................................................................................................2-29
System Check-Out .............................................................................................................................2-50
Power Up Sequence ..................................................................................................................2-50
Feature Upgrade Procedure ..........................................................................................................2-51
3
General Conventions .......................................................................................................................3-3
DHS-L Features ............................................................................................................................3-3
Soft Button Prompts .................................................................................................................3-4
Programming ......................................................................................................................................3-4
Using a PC .....................................................................................................................................3-4
Using a Keyset .............................................................................................................................3-5
Contents
Advertisement
Table of Contents
