Polycom SpectraLink 6300 MCU - Manual (Page 10)

Facility Preparation: SpectraLink 6000 System: SpectraLink 6300 MCU
PN: 1725-36121-001_J.doc 10
SpectraLink 6000 System
The Master Control Unit
The Master Control Unit (MCU) is the processing center for calls to
and from the SpectraLink 6000 System. It consists of at least one
primary shelf (MCS300) and may have up to nineteen expansion
shelves. Residing adjacent to the telephone switching equipment, the
MCU operates as a standalone, external system while maintaining full
PBX functionality for handset users.
The MCU connects to the telephone system in two ways. The MCU
can either interface with analog ports of the host telephone system or,
in many cases, connect directly to the telephone system (PBX or
key/hybrid system) via a digital interface. A digital interface provides
the advantage that all switch features, such as call party name display
and multiple line appearances, are preserved for the end user.
The MCU provides connectivity from the telephone switch to the
wireless system components. Telephony ports for each handset are
commissioned from the telephone switch. Base Stations, which