CW 1293 High-Performance Signal Cable
Engineered for high-fidelity data and signal transmission in sensitive infrastructure environments like data centers and PBX networks. Utilizing solid annealed tinned copper and precision-extruded TI54 insulation, the CW 1293 (Issue 4) is built to minimize signal loss and crosstalk across high-density vertical and horizontal runs.
Electrical and Physical Benchmarks
CW 1293 is specified for low capacitance unbalance between pairs, ensuring digital signal stability in high-density IT infrastructure. Every production lot undergoes pair unbalance testing and stripping force verification.
| Conductor Diameter | Max Resistance @ 20°C | Min Insulation R | Capacitance Unbalance | Application |
|---|---|---|---|---|
| 0.4 mm | 153 Ω/km | 50 MΩ/km | 200/300 pF/500m | IT Signal / VoIP |
| 0.5 mm | 92.2 Ω/km | 50 MΩ/km | 500 pF/500m | Data Backbone |
| Project customization: Available up to 100 pairs with optional aluminium foil screening and LSZH (halogen-free) jackets on request. | ||||
Precision-Engineered for Signal Integrity.
CW 1293 uses solid tinned copper conductors with precision-extruded TI54 insulation, ensuring consistent electrical performance across every pair in the cable.
Built for High-Density Signal Applications.
CW 1293 is manufactured to British Telecom specification Issue 4, ensuring compatibility with Krone and IDC termination systems used in data centers and VoIP infrastructure worldwide.
Where CW 1293 is Specified.
CW 1293 is the cable of choice for high-integrity signal transmission in data centers, VoIP infrastructure, and large-scale access control systems.
CW 1293 — technical questions answered.
Common questions from data centre and telecom infrastructure procurement teams about CW 1293 Issue 4 signal cable.
What is CW 1293 cable used for in data and telecom infrastructure?
CW 1293 (Issue 4) is a high-performance signal cable engineered for low-speed data transmission and VoIP infrastructure inside data centres and PBX networks. It uses 0.4 mm or 0.5 mm solid tinned copper conductors paired with precision-extruded TI54 insulation to minimise signal loss and crosstalk in high-density vertical and horizontal runs.
The cable is optimised for Krone and IDC termination systems, and is supplied made-to-order on 500m or 1000m wooden drums for large-scale installations.
Which standard governs CW 1293, and how does it relate to other international references?
The cable is manufactured to British Telecom specification BT CW 1293 Issue 4 — the primary standard governing high-performance signal cables in UK and international telecommunications infrastructure. The construction also references ASTM B33 for tinned solid copper conductors, conductor resistance limits per IEC 60228, and (for the LSZH sheath option) flame and smoke standards IEC 60754-1 and IEC 61034-2.
This combination ensures the cable is directly equivalent to international signal cable references for projects requiring CE-marking documentation or export compliance.
What testing is performed on every production lot before dispatch?
Every made-to-order run is verified before dispatch. Lot-level testing covers pair capacitance unbalance (max 500 pF / 500m), conductor resistance per IEC 60228, insulation resistance, dielectric strength per BT CW 1293 Issue 4, and stripping force verification for termination reliability.
Test documentation — pair unbalance certificates, conductor resistance data, and material traceability — is issued with every institutional and export order, regardless of order size.
Can CW 1293 be supplied in non-standard pair counts or with halogen-free sheath?
Yes. The cable is available in custom configurations up to 100 pairs on a made-to-order basis. Sheath options include standard PVC TM51 (general purpose) or LSZH (halogen-free) for environments requiring zero-halogen fire performance per IEC 60754. Aluminium foil screening is available on request for enhanced electromagnetic shielding in noisy installations.
The technical team responds within 24 business hours to project-specific quotation requests; bill-of-quantities (BOQ) uploads are accepted for line-item pricing.
Standards This Cable is Manufactured To.
CW 1293 is manufactured to British Telecom specification Issue 4, with all materials and processes verified for compliance with international signal cable standards.
Request institutional pricing and technical documentation.
Our engineering team responds within 24 hours with accurate bulk pricing, complete compliance documentation, and specifications. BOQ uploads accepted.
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Supplying to an international project?
CW 1293 is manufactured to British Telecom specification and is directly equivalent to international signal cable standards. Our facility can also produce cables conforming to BS 5308, IEC 60189, and other international telecommunications cable specifications.