Nilfisk-ALTO EQU MKII Series - Manual (Page 9)

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18. Ground lift switch
4. INSTALLATION & CONNECTION
4.1 Mains Connection
4.2 Audio Connection
- Wiring Configuration
19. Fuse holder / Voltage selector
20. AC Inlet
This connector is meant for the connection of the supplied main cord.
Do not insert power cord into unit until voltage has been correctly set. Do not plug power cord into AC power
until voltage has been correctly set.
110-120V
220-240V
This is set for
110V AC TO 120V AC
operation
This is set for
220V AC TO 240V AC
operation
220-240V
110-120V
This switch is used to disconnect the signal ground from the mains and chassis earth. If it is determined that
the equalizer is the cause of hum or buzz in your system due to a ground loop, move this switch to the "lift"
position.
Please note the triangular markers on both sides of the fuse holder (see above figure). To change the voltage
pull the fuse holder out, rotate it 180 and push it back again. The operating voltage will be indicated by one
of the two triangular markers.
XLR Type Unbalanced
Pin3 (-)
Pin2 (+)
Pin1 ( )
(Linked to Pin1 manually, )
XLR Type alanced B
Pin1 ( )
Pin2 (+)
Pin3 (-)
TRS Type Balanced
Tip
Ring
Sleeve
+
-
TRS Type Unbalanced
Tip
Ring
Sleeve
+
TS Type Unbalanced
Sleeve
Tip
+
NOTE: While you can use any input connector with any output connector, only one set of these connectors is
to be used at one time, detail wiring and connection, please refer to 4.2 audio connection.
You must be sure of the Voltage available in your country because this is a Dual Voltage unit. Voltage opera-
tion can be changed through the fuse protecting the power supply but this operation must be performed by a
qualified engineer.
Either the 1/4" TRS phone jack or the XLR connector can be wired in balanced and unbalanced modes, which will
be determined by the actual application status, please wire your system as the following wiring examples:
17. RCA input and output connector
The RCA connector are unbalanced.
16. 1/4" TRS phone plug input and output connector
The 1/4" TRS connector are actively balanced and are used to input/output the signal.
Please ensure that the EQU MKII Series Graphic Equalizer is set to the correct supply voltage before plugging
the power cord into the wall outlet, use the same fuse as marked on the fuse holder at the AC power connection
socket.
The mains connection of the EQU MKII Series Graphic Equalizer is made by using the enclosed mains cord and
a standard IEC receptacle. It meets all of the international safety certification requirements.
The EQU MKII Series Graphic Equalizer presents with balanced XLR & 1/4" TRS and unbalanced RCA connectors,
and it can be interfaced by several ways to support a variety of applications without any signal loss. The EQU MK
II Series Graphic Equalizer can be used on a single instrument by connecting to a mixing console's main inserts,
or on an entire mix "in-line" between a mixing console's outputs and a power amplifier.