Cloud CXL-80T User manual

Brand: Cloud

Model: CXL-80T

Type: User manual

CXL-80T Installation Instructions v1.0

CXL-80T

70/100 V Transformer

Installation Instructions

Important Safety Notes

It should be recognised that 100 V-line or 70 V-line speaker systems have the

potential to deliver an electric shock. Install the CXL-80T only in accordance

with these instructions.

In all cases, the external wiring and associated speakers will need to comply

with local electrical regulations for AC voltages up to 100 Vrms (141 Vpeak).

Do not expose the transformer to rain or moisture.

The transformer module must be installed in a safe manner.

Cloud Electronics Ltd. accept no responsibility for hazardous installations.

CXL-80T Installation Instructions v1.0

INTRODUCTION

The CXL-80T is an optional transformer for the 46-80 Multi-Zone Mixer Ampliﬁer, to permit the Mixer Ampliﬁer to directly drive

100 V-line or 70 V-line loudspeaker systems. The transformer is rated at 80 W output, and is mounted internally. Up to four

CXL-80Ts (one per output channel) may be ﬁtted to a 46-80. The outputs are available on the 8-pin 5 mm-pitch screw-terminal

SPEAKER OUTPUTS connector on the host unit’s rear panel.

Speaker Outputs

123

8 123

MICROPHONE 1 / PAGE MIC

BALANCED

INPUT

123

50dB

GAIN

+10

+10-10

MICROPHONE 2

BALANCED

INPUT

123

50dB

GAIN

+10

+10-10

MIC 1 ACCESS

ACCESS CONTACTS

SHORT PINS TO 0V

FOR PAGE ACCESS

0V Z1 Z2 Z3 Z4 +V

OFF ON

OFF

N/O N/C

MIC

MIC2 PHANTOM PWR

MIC OVER MUSIC

MIC1 PHANTOM PWR

PAGING MODE

MUTE - N/O OR N/C

LEVEL

+10-10

DIGITAL PAGE MIC

CDPM IN

FACILITY PORT MUSIC MUTE

CONNECT TO RELAY

ISOLATED CONTACTS

SW1: CONFIG

SPEAKER OUTPUTS

70/100V

4 OHM

70/100V 70/100V 70/100V

GAIN

+10-10

GAIN

+10-10

GAIN

+10-10

GAIN

+10-10

GAIN

+10-10

GAIN

+10-10

MIC

100

MUSIC

100

123

LINE INPUTS

LINE 1 LINE 2 LINE 3LINE 4 LINE 5LINE 6

123

UTILITY/LOOP OUTPUT AUX OUT

ZONE 1

ZONE 2

REMOTE MUSIC CONTROL

EACH 3 PIN CONNECTOR IS INTENDED FOR USE WITH RL-6/RL-1

SERIES REMOTE WALL PLATES

REFER TO USER GUIDE FOR FULL DETAILS

OFF ON

15M30M

ZONE 2

123

ZONE 1

123

ZONE 3

123

ZONE 4

123

LOC

REM

LOCREM

LOC

REM

LOCREM

LOC

REM

LOCREM

LOC

REM

LOCREM

OFFON

SW2: CONTROLSW3: UTIL/PRI/APD

0V Rx Tx

RS232

Z4 SOURCE

Z4 LEVEL

Z3 SOURCE

Z3 LEVEL

Z2 SOURCE

Z2 LEVEL

Z1 SOURCE

Z1 LEVEL

APD ON

APD TIMING

LINE 6 PRIORITY Z1

LINE 6 PRIORITY ALL

UNUSED

UTILITY SOURCE A

UTILITY SOURCE B

UTILITY SOURCE C

MAX: 150W

POWER 47-63Hz

85-243V AC

CAUTION:

REPLACE WITH SAME

TYPE T5AH 250V FUSE

ATTENTION:

UTILIZER UN FUSIBLE

DE RECHARGE DE MEME

TYPE DE T5AH 250V.

[ ZONE 1 ]

NOTE: unlike some other Cloud multi-channel ampliﬁers, the 46-80 uses a single output connector for both low impedance and

70/100 V-line operation. Thus it is NOT possible for any channel of a 46-80 to drive both low impedance speakers and

70/100 V-line systems simultaneously. The check boxes below the connector should be used to indicate the standard each output

is set for.

FITTING THE CXL-80T TRANSFORMER

The CXL-80T transformer is a toroidal type, and is supplied pre-terminated with 2-pin and 3-pin connectors as shown:

RED

BLACK

PRIMARY

WINDING

CONNECTOR

(female)

SECONDARY

WINDING

CONNECTOR

(female)

WHITE

BLUE

MAUVE

46-80 Rear Panel

CXL-80T Installation Instructions v1.0

Pri. Sec.

From amplifier

output (Lo-Z)

To 70/100 V-line

speaker system

100 V

70 V

COM

Red

Black

White

Purple

Blue

CXL-80T

(0V)

Each transformer is also supplied with an M4 x 45 Posi-head bolt.

To convert one channel of a 46-80 to 70/100 V-line operation, proceed as follows:

1. Disconnect the 46-80 from the mains.

2. Remove the top cover (8 screws) and orient the unit with the rear panel towards you.

3. Mount the CXL-80T transformer on the right-hand side of the 46-80 chassis, using one of the holes in the side of the chassis

and the M4 bolt supplied with the transformer. The centre of the toroid has a captive M4 nut, so the bolt head should be on

the outside of the chassis. If ﬁtting fewer than four CXL-80Ts, any of the ﬁxing positions may be used. Orient the transformers

so that the ﬂying leads face the rear of the chassis.

4. For the zone being converted to 70/100 V-line operation, unplug both ends of the relevant blue/white twisted pair which

connects the power ampliﬁer modules to the 3-pin headers on the PCB immediately behind the SPEAKER OUTPUT

connector.There are four of these (one per zone): CON30 (Zone 1), CON31 (Zone 2), CON32 (Zone 3) and CON33 (Zone 4) -

see diagram on the following page.

CXL-80T Installation Instructions v1.0

CON30 CON31 CON32 CON33

CON34 CON35 CON36 CON37

5. Identify the transformer’s primary winding – this is the red/black ﬂying lead ﬁtted with a 2-pin connector. Plug this into

the relevant power module output connector. Note that each module has two channels, that nearer the front of the chassis

powers Zones 1 and 2, the other Zones 3 and 4. Refer to the diagram on page 5.

6. If conﬁguring the zone output for 100 V-line operation, plug the transformer’s secondary winding – the other ﬂying lead

(blue/mauve/white) - into the 3-pin header behind the SPEAKER OUTPUT connector vacated in Step 4. (This will be the one

closer to the rear panel.)

7. If conﬁguring the zone output for 70 V-line operation, plug the transformer’s other ﬂying lead (blue/mauve/white) into the

alternative 3-pin header behind the SPEAKER OUTPUT connector (this will be the one further away from the rear panel). The

headers are CON34 (Zone 1), CON35 (Zone 2), CON36 (Zone 3) and CON37 (Zone 4).

8. For each zone being converted to 70/100 V-line operation, enable the channel’s 65 Hz hi-pass ﬁlter by moving the appropriate

jumper from OFF to ON: these are J3 (Zone 1), J4 (Zone 2), J5 (Zone 3) and J6 (Zone 4). This is important, as low frequency

signals at high level can saturate the transformer cores, causing unpleasant distortion and possibly activating the ampliﬁer’s

limiter circuitry. See the following diagram for location of PCB jumpers.

CXL-80T Installation Instructions v1.0

9. If converting further Zone outputs to 70/100 V-line operation, repeat Steps 3 to 8 for each output.

10. Replace the cover, using the original screws.

11. Mark the checkboxes below the SPEAKER OUTPUTS connector with a felt-tip pen to indicate the mode of operation for each

channel.

MAIN PCB

POWER MODULE – Z1 & Z2

POWER MODULE – Z3 & Z4

UPPER PCB

TO FRONT PANEL PCB

Z1 Z2 Z3 Z4

Output connectors for Lo-Z or

100 V-line operation

Output connectors for

70 V-line operation

J10

J11

J12

J13

Power module output

headers – Z1 & Z2

Power module output

headers – Z3 & Z4

Z2 Z1

Z4 Z3

46-80 MAIN PCB - REAR VIEW

SIMPLIFIED VIEW - ONLY PRIMARY

COMPONENTS SHOWN

www.cloud.co.uk

www.cloudusa.pro

Cloud CXL-80T User manual

Cloud CXL-80T User manual

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