LEGRAND D45 SYSTEM, Installation Manual, Page: 65 / 254

on
off
Power supply
323005
There are two kinds of power supplies
for D45 systems, the system and the
auxiliary power supply.
Power supply installation rules
323005 323010
Can be system
PWS
(when impedance
switch is ON) Can be auxiliary
PWS
(when impedance
switch is OFF)
Auxiliary
PWS only
Comparison between Power supply and Auxiliary Power supply.
function 323005 323010
Set to Be SySteM pwS Set to Be auXiliary pwS auXiliary pwS
Supply power to devices √ √ √
Power supply management
√
(can be on or off) ×
(off) ×
n/a
Smart power supply
√
(can be on or off) √
(can be on or off) ×
n/a
Supply power to data communication cable √ × ×
Impedance matching √ × ×
From above table, it is found that
the biggest feature of 323005 is that:
it’s capable of supplying power to
the data communication cable, and
offer impedance matching for the
audio channel at the same time.
Therefore, In the project, usually
PWS smart power supply is used as
system power; only when the system
needs auxiliary power supply with
smart function, the PWS will be set as
auxiliary power supply; otherwise, the
auxiliary power supply will be used. Riser shunt:
Where system power supply is
needed: in D45 systems it is possible
to use only 323003, 323019 (able to
extend quantity of handsets inside
riser) and 323009 (able to connect
5 handsets) to separate audio cable
and data communication cable.
In order to supply power to each
data communication cable segment and matching audio impedance, it
is necessary to install one (only one
is allowed) system power supply in
each separated area. Other power
supplies must be auxiliary power
supply (323010 or 323005 set as
auxiliary power supply).
Note: 323003 only separate in the direction towards
the riser. Never separate from riser to BUS!
57 GUIDE D45 SyStEm
WWW.LEGRAND.COM