Expansion With Cards And Modules; System Modules; Dsp Modules - Mitel 470 System Manual

Expansion Stages and System Capacity
DSP function which can be selected on the call manager card
A DSP chip on the call manager card provides selectable functions. A description of
the individual functions can be found as of page 50.
The functions are determined in the Media resources ( =ym) view. In Tab. 21 all the
possible combinations are listed, with the maximum number of channels. For this the
DSP chip on the Call Manager card has to be loaded with different firmware. Additional
functions require the use of one or more DSP modules. Some of these functions are
subject to a licence.
3. 3

Expansion with cards and modules

An Mitel 470 basic system can be individually expanded using interface cards, system
modules and an application card. The number and position of the available slots are
described in the chapter "Interfaces, display and control elements", page 42.
3. 3. 1

System modules

With system modules a distinction is made between modules expandable as an option
(DSP modules, IP media modules, Call charge modules) and mandatory modules
(RAM module). This chapter describes only the system modules that can be expanded
as an option. They expand the resources of the communications server, which means
the system can be expanded step by step in line with requirements.
3. 3. 1. 1

DSP modules

Processor-intensive system functions require media resources. The communication
server's DSP capacity increases through the use of DSP modules.
Fig. 12 Design of the DSP module
DSP modules are stacked on the call manager card and do not take up any slots for in-
terface cards (see "Fitting DSP modules", page 108). The different types of modules
can be used as a mix.
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Mitel 470 as of R4.1
syd-0585/1.2 – R4.1 – 08.2016