Instruction manual

DEFINITY® Business Communications System and GuestWorks® Issue 6
Overview
555-231-208
Issue 1
April 2000
Introduction
2-9Hardware
2
Single-Carrier Cabinets
Figure 2-3 shows a typical Single-Carrier Cabinet.
Figure 2-3. Typical Single-Carrier Cabinet (SCC)
A maximum of four single-carrier cabinets can be stacked on top of each other to
form a single Processor Port Network or Expansion Port Network. There are four
types of single-carrier cabinets:
■ Control cabinet (located in the Processor Port Network only), which
contains ports and a control complex (for call processing). Each control
cabinet contains 16 universal slots.
■ Port cabinet (located in the Processor Port Network and in Expansion Port
Networks), which contains ports. Each port cabinet contains 18 universal
slots.
■ Duplicated control cabinet (PPN only), contains duplicate SPE circuit packs
to perform call processing, maintenance, and administration identical to the
control carrier. The duplicated control carrier also contains 16 port circuit
pack slots. Only G3si and G3r support duplication.
■ Expansion control cabinet (optional and located only in an Expansion Port
Network), which contains ports, a tone-clock, an interface to a Processor
Port Network cabinet, and a maintenance interface. Each expansion
control cabinet contains 17 universal slots.