Cloud CXL-40T Installationshandbuch - Seite 3

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CXL-40T: Installation Guide
1
Introduction
The CXL-40T is a high performance 70V/100V-line output transformer intended for use in high
quality background music and public address applications in systems up to 40W rms. It is
compatible with the following Cloud products: 36/50, 46/50, CX-A450 & CX-A850.
2
Electrical safety
The 100V/70V-line system is capable of delivering an electric shock. To comply with relevant
safety standards, the CXL-40T must be installed with the appropriate level of care into the Cloud
CXL-800 rack housing. The internal insulation board and external connector cover must be fitted
to the CXL-800 to provide adequate shock protection.
3
Wiring the CXL-40T
Using at least 1.5 mm² cable, wire the output of the amplifier to the 2 pole connector and connect
to the CXL-40T 'AMPLIFIER' terminations observing polarity. The 70V/100V-line output uses the
3 pole connector; for 70V speakers, use the 0V (-) and 70V (+) terminations and for 100V
speakers use the 0V (-) and 100V (+) terminations. The speaker cable must be at least 0.75mm²,
double insulated. With long distances it may advantageous to use thicker cable. The CXL-40T
provides a fully balanced output signal which is isolated from the amplifier.
PCB Pin N
1
2
3
4
5
Connections to the CXL-40T
4
High pass filter - jumper settings
The CXL-40T may be used at full power with frequencies down to 45Hz. If it is operated with
high input levels at frequencies below 45Hz it may saturate and cause the driving amplifier's VI
limiter to operate. The Cloud 36/50, 46/50, CX-A450 and CX-A850 are fitted with an internal
65Hz filter that can be turned ON or OFF by configuring its specific jumper. The filter of a channel
or zone must be ON when the channel has a CXL-40T installed since it will protect the
transformer from the high level low frequency signals that cause saturation.
Caution:
36/50
46/50
CX-A450
CX-A850
15/11/04 V2
o
Cable-colour
Red
Black
White
Purple
Blue
Remove the power cable before removing any cover to reveal the jumpers.
Always use identical fixing screws when replacing product covers.
The list below details the relevant jumpers for the 65Hz high pass filter:
Zone 1 = J5
Zone 2 = J8
(Refer to the 36/50 manual for full details)
The list below details the relevant jumpers for the 65Hz high pass filter:
Zone 1 = J7
Zone 2 = J8
(Refer to the 46/50 manual for full details)
The list below details the relevant jumpers for the 65Hz high pass filter:
Ch 1 = J1
Ch 2 = J2
(Refer to the CX-A450 manual for full details)
The list below details the relevant jumpers for the 65Hz high pass filter:
Ch 1 = J1
Ch 2 = J2
Ch 5 = J5
Ch 6 = J6
(Refer to the CX-A850 manual for full details)
CXL-40T
Installation Guide
Connection Name
Amplifier negative
Utility = J9
Zone 3 = J13 Zone 4 = J14
Ch 3 = J3
Ch 4 = J4
Ch 3 = J3
Ch 4 = J4
Ch 7 = J7
Ch 8 = J8
Amplifier positive
100V
70V
0V
1