Instruction manual

Contents
Chapter 2 – Strata DK40i
ii Strata DK General Description 6/00
Chapter 2 – Strata DK40i
Base KSU Architecture.........................................................................................................................10
Digital Telephone Circuits..............................................................................................................10
Central Office (CO) Line Circuits (TCOU/TDDU/TBSU/TBUU)................................................ 10
Standard Telephone Interface Unit (KSTU2).................................................................................11
DTMF/ABR Tone Detection Receiver (K5RCU and K5RCU2)................................................... 11
Feature Key (KKYS)...................................................................................................................... 12
SMDR, SMDI, ACD/MIS and Maintenance DKi Admin/Modem (TTY) Interface (TSIU)......... 12
Expansion KSU Architecture................................................................................................................ 12
Station and Line Capacities................................................................................................................... 12
ISDN BRI Lines .............................................................................................................................13
Peripherals............................................................................................................................................. 14
Power Considerations............................................................................................................................15
Power Supply/Reserve Power ........................................................................................................15
Power Failure Interface .................................................................................................................. 16
Music-on-Hold Interface ................................................................................................................ 16
Functional Block Diagram....................................................................................................................16
Network Requirements..........................................................................................................................18
System Technology...............................................................................................................................18
Pulse Code Modulation ..................................................................................................................18
Custom Electronic Circuitry...........................................................................................................18
Stored Program Control.................................................................................................................. 18
Microprocessors..............................................................................................................................18
Maintenance and Programming ............................................................................................................18
DKi Admin/DKi Backup................................................................................................................18
StrataControl...................................................................................................................................18
Chapter 3 – Strata DK424i
Architecture........................................................................................................................................... 19
Processor PCBs.....................................................................................................................................20
Processor PCB Subassemblies........................................................................................................ 20
Cabinet Slots .........................................................................................................................................21
Base Cabinet................................................................................................................................... 21
Expansion Cabinets ........................................................................................................................22
Printed Circuit Boards (PCBs) .......................................................................................................22
Maximum Station/Line Capacities........................................................................................................ 22
ISDN BRI Circuit Capacity Guidelines ................................................................................................25
ISDN BRI CIrcuit Capacity Guidelines................................................................................................27
Remote Expansion Cabinet Unit...........................................................................................................30
Power Considerations............................................................................................................................30
Reserve Power................................................................................................................................ 30
Primary/Reserve Power Cabinet Hardware ..........................................................................................31
DK424 and DK424i Hardware Compatibility ......................................................................................34
Functional Block Diagrams...................................................................................................................35
Maintenance and Programming ............................................................................................................38
DKi Admin/DKi Backup................................................................................................................38
StrataControl...................................................................................................................................38