This document describes the 89504 paired computer cable for EIA RS-232 applications. It features 24 AWG tinned copper conductors, FEP insulation, twisted pair configuration, Beldfoil shield, and FEP jacket.
The Belden 89504 Paired cable is a 24 AWG stranded (7x32) tinned copper computer cable with FEP insulation and a 100 % coverage Beldfoil® outer shield. It features a .192 in. nominal outer diameter and a plenum‑rated jacket suitable for EIA RS‑232 connections.
Mechanical data include an operating temperature range of –70 °C to +200 °C, a bulk weight of 26.3 lb/1000 ft, a maximum pulling tension of 50 lb, and a minimum bend radius of 1.9 in. Electrical characteristics provide 17 wH/ft inductance, 21 pF/ft capacitance (conductor‑to‑conductor), 40 pF/ft capacitance to shield, 24.1 Ω/1000 ft DC resistance, 300 V RMS rating, and a recommended current of 1.5 A per conductor at 25 °C.
| Conductor size | 24 AWG stranded (7x32) tinned copper |
|---|---|
| Insulation material | FEP – Fluorinated Ethylene Propylene |
| Outer shield material | Beldfoil® (Aluminum Foil‑Polyester Tape) |
| Operating temperature range | -70 °C to +200 °C |
| Bulk cable weight | 26.3 lb/1000 ft |
| Nominal inductance | 17 wH/ft |
| Capacitance (conductor‑to‑conductor @1 kHz) | 21 pF/ft |
| Capacitance (to shield @1 kHz) | 40 pF/ft |
| Conductor DC resistance @20 °C | 24.1 Ω/1000 ft |
| Outer shield DC resistance @20 °C | 15.9 Ω/1000 ft |
| Maximum operating voltage | 300 V RMS |
| Maximum recommended current | 1.5 A per conductor @25 °C |
The cable operates from –70 °C to +200 °C.