Aerial telephone cable figure 8 10 pairs 20 pairs 100 pairs factory price
We are happy to answer any questions, please send us your inquiries and orders.
product detail
Photos
Parameters
| product name | multi-pair indoor telephone cable |
| Transmission standards | YD / T838.4-2003 |
| Jacket | PVC / LSZH |
| Driver's equipment | Bare copper |
| OD conductor | 0,4 mm / 0,5 mm / 0,6 mm |
| Armored | Aluminum tape |
| Insulation material | PHYSICAL EDUCATION |
| Jacket color | Black gray |
| Sample status | A stock |
| Core number | 200 |
| If you provide a free sample | YEAH |
| Package | Wooden or custom reel |
More information
Product Introduction
Open-wire multipair lines consist of bare copper or aluminum conductors strung on crossarms atop poles, using glass or ceramic insulators. These overhead configurations transmit multiple analog voice channels (POTS) simultaneously, forming the backbone of early rural and long-distance telephone networks before the advent of digital systems.
Features
Multipair Construction: Uses multiple insulated copper pairs (e.g., 25, 50, or 100 pairs) bundled within a single aerial cable sheath.
Messenger Cable Support: It is suspended from the poles by a sturdy steel messenger cable, which supports the weight and protects against sagging and inclement weather.
Frequent Termination Points: Requires access points (pedestals or aerial terminals) along the route to splice and connect individual pairs to subscriber drops.
Space Efficiency: Consolidates numerous circuits into a compact overhead line, reducing congestion on poles compared to open cable configurations.
Applications
They are installed along roads and rural land to provide traditional telephone service (POTS) to farms and villages. These overhead lines offer a cost-effective solution for covering long distances where underground cabling is impractical, connecting isolated subscribers to the central office.