Fire Resistant RS485 Databus Cables
APPLICATION
The cables are designed for RS485 data connections where continued functionality is required
during a fire situation. This cable combines low capacitance insulation with one of the highest levels
of screening to provide high speed, interference free, data transmission where continued functionality
is required during a fire situation.
STANDARDS
Basic design to EIA/TIA 485
VOLTAGE RATING
60V
FIRE PERFORMANCE
Circuit Integrity | IEC 60331-23; BS 6387 CWZ; DIN VDE 0472-814(FE180); CEI 20-36/2-1; SS229-1; NBN C 30-004 (cat. F3);
NF C32-070-2.3(CR1) |
System circuit integrity | DIN 4102-12, E30 depending on lay system |
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Note: Asterisk * denotes superseded standard.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
Multipair RS 485 Overall Screened Databus Cable
Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2.Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation.
Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize
crosstalk. Two pair cable had four cores laid in quad formation.
Cabling: Pairs are cabled together in concentric layers.
Overall screen: Aluminum/polyester tape with tinned copper drain wire.
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.)
Multipair RS 485 Overall Double Screened Databus Cable
Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2.
Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation.
Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize
crosstalk. Two pair cable had four cores laid in quad formation.
Cabling: Pairs are cabled together in concentric layers.
Overall screen: Aluminium/polyester tape+copper 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.)
Multipair RS 485 Individual & Overall screened Databus Cable
Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2.
Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation.
Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize
crosstalk. Two pair cable had four cores laid in quad formation.
Cabling: Pairs are cabled together in concentric layers.
Individual Screen: Individual aluminium/polyester tape.
Overall Screen: Copper 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.)
Multipair RS 485 Overall Screened Databus Cable
Conductors: tinned copper wire, stranded according to IEC(EN) 60228 class 2.
Insulation: mica glass tape wrapped with PE or PE wrapped with silicone rubber insulation.
Cabling Elements: Insulated cores are twisted to form pairs with varying lay length to minimize
crosstalk. Two pair cable had four cores laid in quad formation.
Cabling: Pairs are cabled together in concentric layers.
Overall Screen: Copper 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 - +90°C
Temperature range during installation (mobile state): -5°C - +60°C
Minimum bending radius: 8 x Overall Diameter
Electrical Properties
Dielectric test | 1000 V r.m.s. for 5’ (core-core) |
| 1000 V r.m.s. for 5’ (core-screen) |
Impedance | 120Ω |
Capacitance | 45 nF/km conductor to conductor |
| 90 nF/km conductor to shield |
CONSTRUCTION PARAMETERS
Multipair RS 485 Overall Screened Databus Cable
RE-m02Y(ST)H-FR / RE-m02YS(ST)H-FR
RE-S02Y(ST)H-FR / RE-S02YS(ST)H-FRNo.of
pair x | Nominal Cross Sectional Area | No./Nominal Diameter of Strands | Nominal Insulation thickness | Nominal Sheath thickness | Nominal Overall Diameter | Approx.
Weight |
| mm2 | No/mm | mm | mm | mm | kg/km |
1 | 0.22 | 7/0.2 | 0.55 | 0.40 | 4.6 | 29 |
2 | 0.22 | 7/0.2 | 0.55 | 0.40 | 8.1 | 60 |
4 | 0.22 | 7/0.2 | 0.55 | 0.40 | 9.6 | 100 |
1 | 0.50 | 16/0.2 | 0.55 | 0.40 | 5.2 | 44 |
2 | 0.50 | 16/0.2 | 0.55 | 0.40 | 9.3 | 91 |
4 | 0.50 | 16/0.2 | 0.55 | 0.40 | 11.1 | 158 |
1 | 0.75 | 24/0.2 | 0.55 | 0.40 | 5.6 | 56 |
2 | 0.75 | 24/0.2 | 0.55 | 0.40 | 10.3 | 117 |
4 | 0.75 | 24/0.2 | 0.55 | 0.40 | 12.2 | 207 |
1 | 1.00 | 30/0.2 | 0.55 | 0.40 | 5.8 | 61.4 |
2 | 1.00 | 30/0.2 | 0.55 | 0.40 | 10.6 | 128 |
4 | 1.00 | 30/0.2 | 0.55 | 0.40 | 12.5 | 228 |
Multipair RS 485 Overall Double Screened Databus Cable
RE-m02Y(ST)CH-FR / RE-m02YS(ST)CH-FR
RE-S02Y(ST)CH-FR / RE-S02YS(ST)CH-FR
No.of
pair x | Nominal Cross Sectional Area | No./Nominal Diameter of Strands | Nominal Insulation thickness | Nominal Sheath thickness | Nominal Overall Diameter | Approx.
Weight |
| mm2 | No/mm | mm | mm | mm | kg/km |
1 | 0.22 | 7/0.2 | 0.55 | 0.40 | 5.0 | 45 |
2 | 0.22 | 7/0.2 | 0.55 | 0.40 | 8.6 | 88 |
4 | 0.22 | 7/0.2 | 0.55 | 0.40 | 10.1 | 134 |
1 | 0.50 | 16/0.2 | 0.55 | 0.40 | 5.6 | 61 |
2 | 0.50 | 16/0.2 | 0.55 | 0.40 | 9.8 | 124 |
4 | 0.50 | 16/0.2 | 0.55 | 0.40 | 11.5 | 197 |
1 | 0.75 | 24/0.2 | 0.55 | 0.40 | 6.1 | 75 |
2 | 0.75 | 24/0.2 | 0.55 | 0.40 | 10.7 | 154 |
4 | 0.75 | 24/0.2 | 0.55 | 0.40 | 12.7 | 250 |
1 | 1.00 | 30/0.2 | 0.55 | 0.40 | 6.3 | 81 |
2 | 1.00 | 30/0.2 | 0.55 | 0.40 | 11.0 | 166 |
4 | 1.00 | 30/0.2 | 0.55 | 0.40 | 13.0 | 273 |
Multipair RS 485 Individual & Overall screened Databus Cable
RE-m02Y(ST)H pimf-FR / RE-m02YS(ST)H pimf-FR
RE-S02Y(ST)H pimf-FR / RE-S02YS(ST)H pimf-FR
No.of pair
x | Nominal
Cross Sectional Area | No./Nominal Diameter of Strands | Nominal Insulation thickness | Nominal Sheath thickness | Nominal Overall Diameter | Approx.
Weight |
| mm2 | No/mm | mm | mm | mm | kg/km |
1 | 0.22 | 7/0.2 | 0.55 | 0.40 | 4.9 | 46 |
2 | 0.22 | 7/0.2 | 0.55 | 0.40 | 8.6 | 91 |
4 | 0.22 | 7/0.2 | 0.55 | 0.40 | 10.1 | 144 |
1 | 0.50 | 16/0.2 | 0.55 | 0.40 | 5.5 | 62 |
2 | 0.50 | 16/0.2 | 0.55 | 0.40 | 9.8 | 127 |
4 | 0.50 | 16/0.2 | 0.55 | 0.40 | 11.6 | 209 |
1 | 0.75 | 24/0.2 | 0.55 | 0.40 | 6.0 | 76 |
2 | 0.75 | 24/0.2 | 0.55 | 0.40 | 10.7 | 157 |
4 | 0.75 | 24/0.2 | 0.55 | 0.40 | 12.7 | 263 |
1 | 1.00 | 30/0.2 | 0.55 | 0.40 | 6.2 | 83 |
2 | 1.00 | 30/0.2 | 0.55 | 0.40 | 11.0 | 170 |
4 | 1.00 | 30/0.2 | 0.55 | 0.40 | 13.0 | 286 |
Multipair RS 485 Overall Screened Databus Cable
RE-m02YCH-FR / RE-m02YSCH-FR
RE-S02YCH-FR / RE-S02YSCH-FR
No.of pair
x | Nominal
Cross Sectional Area | No./Nominal Diameter of Strands | Nominal Insulation thickness | Nominal Sheath thickness | Nominal Overall Diameter | Approx.
Weight |
| mm2 | No/mm | mm | mm | mm | kg/km |
1 | 0.22 | 7/0.2 | 0.55 | 0.40 | 4.8 | 41 |
2 | 0.22 | 7/0.2 | 0.55 | 0.40 | 8.4 | 82 |
4 | 0.22 | 7/0.2 | 0.55 | 0.40 | 9.9 | 127 |
1 | 0.50 | 16/0.2 | 0.55 | 0.40 | 5.4 | 57 |
2 | 0.50 | 16/0.2 | 0.55 | 0.40 | 9.6 | 117 |
4 | 0.50 | 16/0.2 | 0.55 | 0.40 | 11.4 | 189 |
1 | 0.75 | 24/0.2 | 0.55 | 0.40 | 5.9 | 71 |
2 | 0.75 | 24/0.2 | 0.55 | 0.40 | 10.5 | 146 |
4 | 0.75 | 24/0.2 | 0.55 | 0.40 | 12.4 | 241 |
1 | 1.00 | 30/0.2 | 0.55 | 0.40 | 6.0 | 77 |
2 | 1.00 | 30/0.2 | 0.55 | 0.40 | 10.8 | 158 |
4 | 1.00 | 30/0.2 | 0.55 | 0.40 | 12.8 | 264 |
