Firetox Flame Retardant Cables 

Flame Retardant Fiber Optic Cables

Flame Retardant Tight Buffered Distribution Fiber Optic cables

MTA-B-C-D-H

Flame Retardant Tight Buffered Distribution Fiber Optic cables

Application

This cables are used for interconnection of distribution boxes and end devices, where continued functionality is

required during a fire situation. The cables are very suitable for various indoor and outdoor applications,

including routing between buildings within ducts and inside building up to riser shafts.

Standards

Basic design to Telcordia GR409-CORE / TIA/EIA 568B.3 / ICEA-S-83-596

Fire Performance

Flame Retardance (Single Vertical
Wire Test)
EN 60332-1-2; IEC 60332-1-2; BS EN 60332-1-2; VDE
0482-332-1 ; NBN C 30-004 (cat. F1); NF C32-070-2.1(C2); CEI 20-35/1-2; EN 50265-2-1*; DIN VDE 0482-265-2-1*
Reduced Fire Propagation
(Vertically-mounted bundled wires
& cable test)
EN 60332-3-24 (cat. C); IEC 60332-3-24; BS EN 60332-3-24; VDE 0482-332-3; NBN C 30-004 (cat. F2); NF C32-070-2.2(C1); CEI 20-22/3-4; EN 50266-2-4*; DIN VDE 0482-266-2-4
Halogen Free IEC 60754-1; EN 50267-2-1; DIN VDE 0482-267-2-1; CEI 20-37/2-1 ; BS 6425-1*
No Corrosive Gas Emission IEC 60754-2; EN 50267-2-2; DIN VDE 0482-267-2-2; CEI 20-37/2-2 ; BS 6425-2*
minimum Smoke Emission IEC 61034-1&2; EN 61034 -1&2; DIN VDE 0482-1034-1&2; CEI 20-37/3-1&2; EN 50268-1&2*; BS 7622-1&2*
No Toxic gases NES 02-713; NF C 20-454

Note: Asterisk * denotes superseded standard.

Cable Construction

Optical fibers: Singlemode and multimode tight fibers, with tight buffer coating.

Reinforcement: Either aramid yarn or fiber glass is wound around the tube to provide physical protection and

tensile strength, with added fire protection.

Inner Sheath(optional): Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1

Ripcord(optional): An optional ripcord can be located under the outer sheath to facilitate jacket removal.

Armouring(optional):

STA: Corrugated steel tape armour

SWB: Steel wire braid

Outer Sheath: Thermoplastic LSZH compound type LTS3 as per BS 7655-6.1 (Thermosetting LSZH compound

type SW2-SW4 as per BS 7655-2.6 can be offered.)

Physical And Thermal Properties

Temperature range during operation (fixed state): -20°C - +60°C

Temperature range during installation (mobile state): 0°C - +50°C

Minimum bending radius: 10 times the outer diameter for unarmoured cables 20 times the outer diameter for

armoured cables

Electrical Properties

AWG   14
Nominal Conductor Diameter mm 1.6
Impedance Ω 75+/-5
Nominal Attenuation@100mHz dB/100m 4.5
Nominal Attenuation@270mHz dB/100m 7.6
Nominal Attenuation@540mHz dB/100m 10.8
Nominal Attenuation@750mHz dB/100m 12.8
Nominal Attenuation@1000mHz dB/100m 14.8
Capacitance pF/m 53.5
Velocity of Propagation % 83
Conductor DCR Ω/km 8.5
Shield DCR Ω/km 12.1
Inductance μH/m 0.32
Time Delay ns/m 4

Construction Parameters

Cable Code N° of
Fibers
Nominal Overall
Diameter
max. Tensile
Strength
minimum
Bending
Radius
Approx. Weight
    mm N mm kg/km
mTA-B-2-0-H 2 7,6 250 76 55
mTA-B-4-0-H 4 7,8 250 78 67
mTA-B-6-0-H 6 8,6 400 86 77
mTA-B-8-0-H 8 8,8 400 88 81
mTA-B-12-0-H 12 9,3 400 93 90