B8) multi-pair 24awg individual foil RS422

Alternatives to Belden these multi-pair 24awg individual foil RS422 data cables are designed for CAD/CAM and similar applications with high data rates including RS422 connections. This cable type is recommended for long runs due to reduced losses. The individual foil tape screening provides protection against electrical interference and cross-talk.

These alternatives to Belden cables are flexible and come in polyvinylchloride (PVC) or low smoke and fume (LSF) as standard. 

LSF material offers reduced smoke emission / fire propagation compared with standard PVC but may still release hydrogen chloride (HCL) if burnt. There is no standard governing the HCL emissions of LSF cable. LSF should not to be confused with Low Smoke Zero Halogen (LSZH) which guarantees max. 0.5% HCL emissions, for more information please see the in-depth explanation shown on our LSZH Control Flex front page.

These cables are often available in Armoured, Duct Grade or LSZH versions on request, please contact us for more information.


Comparable Belden References
9729 2 Pair 9732 9 Pair 9736 17 Pair
9730 3 Pair 9733 11 Pair 9737 19 Pair
9728 4 Pair 9734 12 Pair 9738 27 Pair
9531 6 Pair 9735 15 Pair


Construction – multi-pair 24awg individual foil RS422
(9728, 9729, 9730, 9731, 9732, 9733, 9734, 9735, 9736, 9737, 9738)
stranded tinned copper conductors
foam polyolefin (PO) core insulation
cores twisted into pairs
individual aluminium/polyester foil tape screens
tinned copper drain wires (one per screen)
grey PVC or LSF outer sheath


Technical – multi-pair 24awg individual foil RS422
(9728, 9729, 9730, 9731, 9732, 9733, 9734, 9735, 9736, 9737, 9738)
conductor make-up: stranded 7x 0.2mm, as AWG chart, see Stranding/Resistance page
voltage rating: 300V operating
capacitance: 41pF/m core/core, 76pF/m core/shield
nominal impedance: 100 Ohms
temperature range: usually +60°C maximum, +80°C may be available on request
UL style: 2493
core identification: coloured to American data 3, see Colour Codes page


A printable PDF specification is available here: B8) multi-pair 24awg individual foil RS422.


For alternative constructions return to the Alternatives to Belden Data Cables front page.

UL references and Belden numbers are provided for cross reference purposes only, please inform us if you require Belden manufacture or UL approved cables.


All measurements should be considered nominal and images for illustration purposes only. Although Central Cables Ltd has made every reasonable effort to ensure its accuracy, the information contained herein is subject to error or omission and to change without notice. In no event will Central Cables Ltd be liable for any damages whatsoever, arising in connection with the information described.