AUDIOropa PRO LOOP DCCplus Gebruiksaanwijzing - Pagina 11

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3.5 Example of a LOS loop measuring 16x19 metres, approx. 300m²
Fig. Example of a LOS loop
3.6 Connecting the induction loops to the master and slave amplifier
• The loop amplifiers has to be located outside of the loop.
• Connect the 90° Slave Out of the master amplifier to the Master in socket of the slave amplifier. (See picture
below)
• Twist the section of cable between the amplifier and the loop (supply to the induction loop) to reduce interfe-
rence. (See picture below)
• Use a suitable measuring instrument (e.g. ohmmeter) to make sure that the loop is not grounded (no defect in
the insulation of the loop system). Typical resistance values for a 300m² loop lie between 0.5 and 3 ohms.
Since the master loop is longer, it also has a greater resistance.
• Connect the cable ends of the loop to the corresponding terminals (28) on the rear panel of the amplifier.
Make sure that you do not mix up the ends of the master and the slave cable.
OUT
COM
LOOP
LINE OUT
MASTER IN
METAL LOSS
SLAVE OUT
COMPENSATION
VU LED
0°
90°
NC
C
NO
PRE Amp. POST Amp.
SUPERVISION
MASTER
SLAVE
RoHS
conform
ON OFF
PUSH
IN2
PUSH
IN1
PRIORITY
100V
0
INPUT
PHANTOM
AGC
ON OFF
MIC LINE
VOX
MIX
AGC LIMITER
10k 5k
MASTER IN
NC
RoHS
conform
PRIORITY
100V
0
MASTER
115V AC
230V AC
OUT
COM
PHANTOM
LOOP
ON OFF
MIC LINE
SLAVE OUT
VU LED
0°
90°
PRE Amp. POST Amp.
MASTER
SLAVE
MASTER IN
SLAVE OUT
VU LED
0°
90°
PRE Amp. POST Amp.
MASTER
SLAVE
LINE OUT
MASTER IN
METAL LOSS
SLAVE OUT
COMPENSATION
VU LED
0°
90°
PRE Amp. POST Amp.
C
NO
SUPERVISION
MASTER
SLAVE
ON OFF
PUSH
IN2
PUSH
IN1
INPUT
AGC
PHANTOM
PHANTOM
ON OFF
MIC LINE
ON OFF
MIC LINE
VOX
MIX
10k 5k
AGC LIMITER
SLAVE
115V AC
230V AC
COM
OUT
LOOP
English 23