Mounting without a rack tray, Connections, 141 v – Cloud Electronics CXL-400T User Manual
Page 2
Cloud Electronics Limited
140 Staniforth Road, Sheffield, S9 3HF. England.
Telephone: +44 (0)114 244 7051 Fax: +44 (0)114 242 5462
Web: www.cloud.co.uk Email: [email protected]
Mounting without a rack tray
The transformer may be mounted onto any convenient clear, flat surface with the single M6
fixing bolt through the toroid’s centre hole. Mounting it immediately adjacent to the amplifier
is not mandatory, though may often be the most practical solution. Consideration should
be given to ventilation, particularly if multiple transformers are housed together and/or the
amplifier has a high duty cycle (i.e., handling audio continuously).
Connections
The transformer’s windings are
terminated in a 2-pin (primary)
and a 3-pin (secondary)
5 mm-pitch female screw-
terminal connector mounted
on a PCB. This assembly is
ready for fitting to the rear
panel of a CXL-800 or
CXL-1600 rack tray.
If the transformer is to be mounted without a rack tray, the connector assembly may be
removed by cutting it off. Connection to the amplifier’s low-impedance output and to the
loudspeaker system can be made using insulated terminal blocks (see Safety Notes below).
Take care to obxserve the wire colour coding:
red (+) and black (-) should be connected to
the amplifier output; the loudspeakers should be connected to
white (+) and blue (-) for a
100 V-line system, or
purple (+) and blue (-) for a 70 V-line system.
Important Safety Notes
It should be recognised that 100 V- or 70 V-line speaker systems have the
potential to deliver an electric shock. Installers must ensure that access to the
secondary (output) terminals of the transformer is restricted by the use of
insulated terminal blocks and fully-shrouded crimp terminals. If the transformer
is being panel-mounted within an equipment rack, fit lockable side and rear panels, and blank
19” panels as necessary, to prevent access to the terminations. If the transformer is to be
housed externally, the use of a lockable IP-rated enclosure fitted with the appropriate cable
grommets is recommended.
In all cases, the transformer and associated speakers will need to comply with local electrical
regulations for AC voltages up to 100 V
rms
(141 V
peak
).
Do not expose the transformer to rain or moisture.
The transformer must be be installed in a safe manner. Cloud Electronics Ltd. accept no
responsibility for hazardous installations.