Lucent Technologies DEFINITY ProLogixTM Solutions 555-235-100 - Manual (Page 28)

1 Hardware
DEFINITY ProLogix Solutions Release 2 Overview 555-235-100 Issue 2 June 1999 1-8
Hardware
The main component of DEFINITY ProLogix Solutions is the new R7csi model, which uses the TN798B
processor (a RISC-based central processing unit) and TN2182B Tone-Clock. The TN798B supervises
system operation.
Cabinets
Cabinets are enclosed shelves composed of vertical slots that hold circuit packs. Circuit packs make up the
logic, memory, and switching circuitry for the system. Port circuit packs connect to telephones, computers,
and trunks. The cabinets are designed to accept any type of port circuit pack in each circuit pack position.
The circuit packs fit into connectors attached to the rear of the slots. Every connector is connected to signal
buses and power supplies in the cabinet. The cabinets also house the equipment that supplies ringing signal
voltage and mass storage for software translations. Each compact modular cabinet has its own power supply
and supports 10 universal slots. The first cabinet uses two slots for the processor and the tone clock.