UP508P.doc

OPTIMUS s/a

POWER UNITS

UP 508 P

Owner’s Manual

OPTIMUS, S.A. – C. Barcelona, 101 E-17003 GIRONA

Tel +34 972 203 300 - Fax +34 972 218 413

E-mail: [email protected]

1

PUBLIC ADDRESS SERIES

PRIORITY POWER UNITS

UP508P

GENERALITY

Monophonic power units have been designed general applications in civic sound recording field.

P.Us. have 2 inputs arranged with independent volume control.

Each input, electronically balanced (on XLR connectors), has a LINK auxiliary output for cascade connection of more power units.

PRIORITY input (on 5 pin DIN connectors) gets priority on PROGRAM input (on DIN connectors).

At the same time of priority activation, the exchange on SECIRITY PAGING connector contact happens for using in safety systems with 3-wire lines.

To activate the priority input, it is enough to plug 2 and 5 pins of DIN connector.

Units are equipped with protections against output short circuits and against over temperature.

On the front panel there are: power leds, priority and protection leds.

The unit has a natural dissipation cooling system.

Loudspeaker audio power outputs are arranged for connection with constant impedance lines and constant voltage lines.

The whole electronic circulation has quality and safety features in working.

Metal framing is suitable to be supported on a surface (table, etc.) and is equipped with separated stirrups for assembly in 19” rack.

UP508P also has vu-meter for output power indication on the front panel. Forced ventilation cooling system has a variable speed in function of the temperature.

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POWER SUPPLY

The unit is expected to work with 230 VCA – 50/60 distribution system and with 24 VCC battery.

In case of power dysfunction, check the outside and inside protection fuses (for 24 VCC) and eventually replace them with others of same calibration; if one of them burns out immediately, do not go on and have check the unit by qualified personnel.

Take away plug from 230 VCA electric power socket and 24 VCC battery always, before removing fuses and, in any case, open the unit framing.

ACOUSTIC SPEAKER CONNECTIONS

Unit is supplied with a crossbar output terminal board for connection with constant impedance and voltage lines.

- CONSTANT IMPEDANCE LINES

2, 4, 8 and 16 Ohms terminals should be used, using the legend layout.

In order to achieve the maximum efficiency of the system and to take precautions from amplifier bad working, it is necessary to check the effective loading impedance of the lines. The total speakers impedance should be equal or higher than pre-selected value for connection.

To get that, each loudspeaker should be without transformer and should be connected in series or in series-parallel groups; In any case loudspeakers should also have the same power handling

(see fig. 2a).

- CONSTANT VOLTAGE LINES

50 V, 100 V terminals should be used with each loudspeaker provided with line transformer and parallel connected, using the legend layout. See fig. 2b for 2-wire traditional connection and fig. 2c for 3-wire safety connection.

In order to achieve the maximum efficiency of the system and to take precautions from amplifier bad working, it is necessary to check the effective total power handling of the loudspeakers that has to be equal or lower than the RMS power value of used amplifier. It’s a good rule arranging a

10-20% safety margin on the amplifier power capability (see fig. 2b).

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TECHNICAL FEATURES

UP 508 P

Nominal output Power

Peak output Power

Frequency response (- 3 dB)

Distorsion at full power (at 1K Hz)

S/N ratio

Input sensitivity

Input Impedence

Loudspeaker Output: Costant Impedence

Loudspeaker Output: Costant Voltage

Power requirements: Supply CA

Battery

Power consumption at full power

Dimensions (W x H x D)

Weight

500W RMS

50

700W IHF

÷

15.000 Hz

< 1 %

> 90 dB

(0 dB) 775 mV

47K Ohm

2 – 4 - 5 – 8 – 16 – 20 Ohm

31 – 45 – 50 – 63 – 90 – 100 V

230 VCA 50/60 Hz

24V CC

880 VA

443 x 132 x 330 mm

24 Kg

UP508P COMMANDS AND FUNCTIONS (see fig.1)

1. PROGRAM – “PROGRAM” volume input signal.

2. PRIORITY – “PRIORITY” volume input signal.

3. PRIORITY – Activated priority control signal led.

4. PROTECT – Protection intervention signal led.

5. OUT LEVEL – Output level and power indicator.

6. ON/OFF – Power supply switch.

7. INPUT – Balanced DIN input of “PROGRAM” signal.

8. LINK – DIN output for connection to other power unit.

9. PRIORITY INPUT – Balanced DIN input of priority signal.

10. PRIORITY LINK - DIN output for connecting priority signal to other power units.

11. SECURITY PAGING – Auxiliary relay output of safety warning.

12. POWER OUTPUTS - Loudspeaker line outputs.

13. BATT. SUPPLY – 24VCC power supply for external battery.

14. MAINS – 230VAC power supply socket mains with CA mains protection fuse (delayed).

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FIG. 1

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8Ω

4Ω

4Ω

4Ω

4Ω

4Ω

4Ω

4Ω

UP508P.doc

SECURITY

PAGING

-C S +

-

ATTENUATORE

+

-C S +

-

ATTENUATORE

+

6

UP508P.doc 7