Contents
Organization........................................................................................................................................... ix
Conventions............................................................................................................................................. x
Related Documents/Media ...................................................................................................................... x
KSU Architecture.................................................................................................................................... 2
Power Supply .......................................................................................................................................... 4
Reserve Power .................................................................................................................................. 4
Power Failure Interface .................................................................................................................... 4
Paging Interface................................................................................................................................ 5
Flexible Relay Contacts.................................................................................................................... 5
Network Requirements............................................................................................................................ 5
Functional Block Diagram ...................................................................................................................... 6
System Technology................................................................................................................................. 7
Pulse Code Modulation .................................................................................................................... 7
Custom Electronic Circuitry............................................................................................................. 7
Stored Program Control.................................................................................................................... 7
Microprocessors................................................................................................................................ 7
Maintenance and Programming .............................................................................................................. 8
DKAdmin/DKBackup ...................................................................................................................... 8
Station and CO Lines .............................................................................................................................. 9
Peripherals............................................................................................................................................. 10
Base KSU Architecture ......................................................................................................................... 11
Digital Telephone Circuits.............................................................................................................. 11
Caller ID (TCIU2) .......................................................................................................................... 12
Strata DK General Description 5/99
i