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Email
sales@marshall-tufflex.com
www.marshall-tufflex.com
Fire and security systems
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Technical information
Material
PVC-U is flame retardant and self
extinguishing. It provides a 100%
recyclable material with good
sustainability. It complies with the
requirements of BS 4761 Parts 6
and 7 and BS 4678. The Callmaster
system isdesigned to comply with
BS 7671:2008.
Installation
• Select Terminal or through box to
suit installation.
• If a terminal box is used, fit the
blanking plate to unused entry.
• Depending upon circuit wiring,
select MIC internal Pot retainer or
cable Fibre clamp. Both
components are suitable for single
for single or twin cable runs.
• Insert one half of the retainer/clamp
into the surface box (from the rear)
and secure box to the wall.
• Lay in MIC or cable and secure in
position with top half of
retainer/clamp – fit Mini adaptor.
• Terminate wiring to accessory and
fit to box.
Boxes
Dimensional data for square boxes
• Overall: 87 x 87mm
• Depth: 38mm external; 35mm
internal.
• Fixing centres: 60.3mm.
• Pot size: Ø15mm.
Dimensional data for circular boxes
• Overall diameter: 123mm excluding
adaptors
• Depth: 28mm external; 24mm
internal.
• Dual fixing centre: 50.8 and
60.3mm.
• Pot size: Ø15mm.
BLANKING
PLATE
MXBP1
ADAPTOR
MXAD2
POT INSERT
MXPT1
BOX
MXBX1
SCREW FC1222
FIBRE CLAMP FC1231
CLEAT MXCC1
ADAPTOR
TA3/2C
COVER
MCMRC1
POT INSERT
MXPT1
BASE
MCMRB1
SCREW FC1222
CLEAT MXCC1
FIBRE CLAMP FC12
MMT2 ADAPTOR*
Callmaster fire and
security systems
0
1
10
100
1000
0
10
20
30
40
50
60
70
80
90
100
Frequency (MHz)
Attenuation dB
MT SUPERTUBE
SHIELDING EFFECTIVENESS IEC1196-1
Supertube
Supertube
with
coupler
MT Supertube FR Plus
LUL Standard
MT Supertube FR Plus meets all the fire performance requirements for LUL (London
Underground Ltd) engineering standard 2-01001-002:issue A1, material classification
EQ/I (equipment/limited and dispersed).
Internal
Polyethylene
layer
Aluminium
layer
External
Polyethylene
layer
Shielding effectiveness
Shielding effectiveness (attenuation in dB) measures the ratio between the external
environment field strength and the field strength after passing through any material.
This is recorded in a logarithmic scale.
Shielding effectiveness
Attenuation
Field strength
in dB
reduction
6
2
20
10
40
100
60
1000
80
10000
MT Supertube FR Plus multi layer conduit systems absorbs and reflect
emitted radiation from sources of interference, where an attenuation of
80dB would reduce the resultant field within MT Supertube FR Plus by a
factor of 10,000. (See tables.)
Mini trunking additional adaptors
Conduit
A seamless aluminium tube sandwiched between two layers of extruded LSOHpolyethylene.
Fittings:
LSOH polycarbonate or cast metal with paint finish. (black or white)
