CHAPTER 2

The blue connector serves as the input for all the units looped in that circuit and it is rated to 20 amps maximum. Please make sure never to exceed 20 amps on any single connector. Please refer to Table 2.1.

Table 2.1: Maximum looping capabilities for M’elodie

Circuit Breaker/

115 V AC

230 V AC

100 V AC

Connector Rating

 

 

 

15 amps

2 Looped-out

6 Looped-out

2 Looped-out

 

(3 Total)

(7 Total)

(3 Total)

 

 

 

 

20 amps

4 Looped-out

9 Looped-out

3 Looped-out

 

(5 Total)

(10 Total)

(4 Total)

 

 

 

 

CAUTION: Do not exceed the current capability of the 20-amp M’elodie loudspeaker AC

connector. When looping always take into account the current draw of all the speakers in the circuit, including the first unit.

NOTE: For best performance, the AC cable voltage drop should not exceed 10 volts, or 10 percent at 115 volts and 5 percent at 230 volts.

POWER CONNECTOR WIRING CONVENTIONS

The M’elodie loudspeaker requires a grounded outlet. Use the AC cable wiring diagram below (Figure 2.3) to create power connectors.

Figure 2.3. AC cable color code

If the colors referred to in the diagrams don’t correspond to the terminals in your plug, use the following guidelines:

■Connect the blue wire to the terminal marked with an N or colored black.

■Connect the brown wire to the terminal marked with an L or colored red.

■Connect the green and yellow wire to the terminal marked with an E or colored green or green and yellow.

NOTE: For units shipped with VEAM all- in-one multipin connector, please refer to

Appendix B for AC Power pin out.

CAUTION: When creating AC cables and distributions systems it is important to pre-

serve AC line polarity and connect earth ground on both sides of the cable. M’elodie loudspeakers require a ground connection. Always use a grounded outlet and plug. It is very important that the system be properly grounded in order to operate safely and properly.

VOLTAGE REQUIREMENTS

When AC power is applied to the M’elodie loudspeaker, the Intelligent AC power supply automatically selects the correct operating voltage, allowing M’elodie to be used internationally without manually setting voltage switches or jumpers. In addition to selecting the operating voltage, the Intelligent AC power supply performs the following protective functions to compensate for hostile conditions on the AC mains:

■Suppresses high-voltage transients up to several kilovolts

■Filters common mode and differential mode radio frequencies (EMI)

■Sustains operation temporarily during low-voltage periods

■Provides soft-start power-up, eliminating high inrush current

The M’elodie loudspeaker operates safely and without audio discontinuity if the AC voltage stays within either of two operating windows at 50 or 60 Hz:

■85 to 134 volts

■165 to 264 volts

M’elodie can withstand continuous voltages up to 275 volts and allows any combination of voltage to GND (that is neutral -line-ground or line-line-ground).

CAUTION: Continuous voltages higher than 275 volts can damage the unit.

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