Sonix Vw2 Technical Manual
8
SONIX VW2 TECHNICAL MANUAL
TM368 / A May 2022 www.eaton.com
4 Installation and connectivity
4.1 Physical installation of the unit
The Sonix Vw2 is a DIN rail mount unit, intended to be
mounted inside the PA/GA cabinet on most standard EN
60715 rails:
•
EN 50022 (Top hat, TS35, TS35D, type “O” or type
“Ω”) 35 x 7.5/15 mm rail,
•
EN 50045 (mini Top hat or TS15) 15 x 5.5 mm rail,
•
EN 50035 (type G or TS32) 32 x 15 mm.
Unit is simply clipped onto the appropriate rail, always
check that all sets of fixings have engaged correctly on
the rail.
ote:
N
Care must be taken to ensure that the product is correctly sup-
ported within the cabinet. Always check that both sets of fixings have
fully engaged on the rail and the unit is secured on both ends, with no
possibility of it to slide along the din rail.
4.2 DC Power
The Vw2 is powered externally by 48 V dc. Eaton
recommends the supply voltage to be taken from
dedicated dc power output connection of the Sonix
Pm10 (see Pm10 Product Manual for connection details).
Green LED (D20) visible next to the power supply input
terminals illuminates to indicate that unit is powered up.
Figure 2 - DC Power connections
ote:
N
As these cables are power feeds, they should be – where pos-
sible – routed within the PA/GA system in a separate way to avoid
contact with signal or audio cables and reduce the possibility of interfer-
ence.
Warning:
Observe the polarity of incoming
power supply cables. Maximum cable section
supported by the unit are:
Solid:
4.0 mm
2
Stranded:
2.5 mm
2
including sleeved or
non-sleeved ferrule
4.3 Earth connection
The Sonix Vw2 unit has an M4 stud for connection to
Earth. The Earth connection is used as a protection
mechanism for the unit and any connected beacons plus
as a low impedance return for the surge arresters fitted
to the unit.
It is strongly recommended that the Earth connection be
made to PE (Protective Earth) only.
Cable sizing is as follows:
Recommended
4.0 mm
2
Minimum
2.5 mm
2
Warning:
This unit MUST be connected
to a protective earth and verified during
commissioning
Warning:
Ensure that the Earth connection is
fully secured before commencing power-up.
4.4 Lightning/Surge arresters
Metal oxide varistors have been fitted to the Sonix Vw2
to act as Lightning / surge arresters. They are placed to
reduce the likelihood of damage to equipment in the rack
from a lightning strike in the field.
Warning:
Care must be taken to ensure beacon
supply voltage does not exceed maximum
working voltage or varistors will activate and
attempt to limit supply voltage.
ote:
N
If system is installed in an area with high likelihood of lightning
then additional, suitably rated surge arresters should be installed on the
incoming field cabling. Please contact your Eaton sales representative
to discuss this further.
J3
+48V
0V
D20
