Multi-core cables are required mainly for high-reliability and high-temperature interconnections for signal and control applications.  Even though most common cables would not have such a large number of applications in a single construction, it is sufficient to illustrate the varied uses of multi-core cables.

A simple twisted pair is a basic example of multi-core cable for signal applications; this is commonly used in communications because of the well-known property of common-mode cancellation.  This is an example of balanced transmission as opposed to unbalanced transmission using RF Coaxial cables.  Unshielded Twisted Pairs (UTP) are now commonly used for LAN cabling.

We offer any number of pairs, triads, quads etc. combined into one large cable, with or without shielding on individual pairs/triads/quads, as well as with overall shielding.  Jackets can be PTFE for high temperature requirements.

MINIATURE SHIELDED WIRES/PAIRS/MULTI-CORE CABLES:

In many equipments, circuit frequencies range between 100 KHz and several MHz.  In these sensitive high impedance circuits, it is necessary to use shielded wires, and in balanced circuits, shielded twisted pairs (STP) (often with jackets).

In these circuits, it is important to prevent interference from external vibration, noise and common mode signals. 

Problems like mismatch, attenuation and radiation are not significant.  Coaxial cables for such applications are expensive and unnecessary.

Miniature wires, planetary twisted pairs and multi-core cables utilize fine core conductors in sizes down to AWG 36 (with single or 7 strands).A reliable multi-layer, insulation of 0.15 mm for single core and 0.18 mm for twisted pairs is then applied.  Single, Twisted pair multi-core constructions with or without colour codes, are then shielded.