RCF UP 4061 Instructions D'installation Et D'emploi page 14

Connections
WARNING : For connecting the
equipment, use only quali ed and
experienced installers, or personnel
having su cent technical knowledge or speci c
instructions to make the connections correctly in
order to prevent electrical dangers.
To prevent the risk of electrical shock, the power
ampli er must be supplied with the mains voltage
(115/230 Vac) only after all connections have been
made.
Before powering up the equipment, it is advisable
to re-check all connections , making sure there are no
accidental short circuits.
The entire sound system must be designed and
installed in compliance with the current laws and
regulations on electrical systems.
IMPORTANT NOTE : To prevent inductive phenomena
from giving rise to hum or disturbance which would
jeopardize e cient system operation, the cables that
transmit microphone signals or line level signals (e.g.
0 dB=775 mV) should not be run in the vicinity of:
1) equipment that produces strong magnetic elds
(e.g. large power transformers)
2) electrical energy conductors
3) speaker supply lines.
AC Power supply
WARNING : Before supplying the
equipment, make sure that your mains
voltage corresponds with the value set
on the voltage selector (24) (Fig. 1-pag. 42). If not,
contact your RCF S.p.A. SERVICE CENTRE.
Connect the ampli er to current outlets equipped
with an earth contact.
For connecting with the mains at 115 Vac or 230
Vac, use the cable supplied with the unit, which
should rst be connected to the socket (23) on the
power ampli er (Fig. 1- pag. 42).
All manuals and user guides at all-guides.com
DC Power supply
equipment with alternating and direct current at the
same time.
(Fig. 1 - pag. 42), which must be connected to a 24
Vdc source (e.g. battery) as shown in Fig. 2 - pag. 42.
Press the terminal down to insert the wire in the hole
and release the terminal to clamp the wire. To reduce
voltage drops to the minimum and prevent
overheating, the minimum cross-section of the supply
wires should be 1.5 mm
mm
"UNBALANCED IN" and "PARALLEL OUT"
connection
connections of the RCA plug to be connected to each
socket are shown in Figure 3 - page 43. To select the
sensitivity of the UNBALANCED IN, use the switch (29)
(Fig. 1 - page 42).
"BALANCED INPUT" connection
page 43. To use the BALANCED IN with priority over
the UNBALANCED IN, a normally open contact (NO)
must be connected to the INPUT terminal strip. By
short circuiting the PRIORITY and GND terminals
together, the UNBALANCED INis excluded and only
the signal related to the BALANCED IN is transmitted
for the entire duration of the contact (see Fig. 5 - page
43). The auxiliary pushbutton on certain microphone
stands or a normal electrical switch can be used as an
electrical control device for this purpose.
"COMMANDS" terminals strip connection
section "CONTROLS AND FUNCTIONS". Figure 6 - page
43 shows the connection of the STAND-BY input.
Figures 7 and 8 - page 44 show two possible
connections for the OVERL. output: with a LED or with
an auxiliary relay. In the OVERL. output connection,
keep in mind the following points:
the output is 300 mA.
relay is used, it is therefore necessary to connect a
resistor in order to have a 6 V voltage drop. For
example, using a 12 Vdc relay with absorption of 70
mA, the resistor to be connected must have a value of
82 ohm - 1 W (6V : 0.07A = 85.7 ohm
14
WARNING : To prevent possible
malfunctions of the direct current power
supply source, do not supply the
For the DC power supply, use the terminals (10)
for the UP 4061, and 2.5
2
for UP 4121 and UP 4161.
2
The input and output are unbalanced; the
The connections to be made are shown in Figure 4 -
The function of the 4 terminals is described in the
- the maximum current that can be delivered by
- the voltage of the output is 18 Vdc ; if a 12 Vdc
82 ohm).
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