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Self-supporting Fiber Optic Round Drop Cable

The self-supporting round fiber optic drop cable consists of a tight-buffered fiber, reinforced with high-strength aramid yarn and an external metal strength member, all protected by an outer sheath.
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  • Self-supporting Fiber Optic Round Drop Cable

  • NEWSUN

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FTTH drop cable, also known as butterfly or indoor drop cable, is specifically designed for the final segment of fiber-to-the-home (FTTH) networks. Its structure typically features a central fiber unit reinforced by two parallel strengthening elements (such as metal wire, non-metallic FRP, or KFRP), with an additional outer steel wire hanger, all encased in a low-smoke, zero-halogen (LSZH) sheath. This design ensures robustness while maintaining a lightweight profile. The cable usually contains a small number of fiber cores, typically ranging from 1 to 4, but can be increased up to 12 cores to meet higher demand. This makes it well-suited for short-distance transmission and indoor cabling applications. The cable is highly flexible and lightweight, facilitating installation in tight bends and confined spaces, which is particularly advantageous in residential and office environments. It exhibits excellent tensile and lateral pressure resistance, with the strengthening elements ensuring stability and reliability during installation. Constructed from flame-retardant, low-smoke, zero-halogen materials, it offers enhanced safety by minimizing smoke and toxic gas emissions in the event of a fire, protecting both personnel and property. As a critical component of FTTH networks, it forms the link between the user access point and the terminal, delivering high-speed, stable internet connectivity. Beyond FTTH, it is also widely used in other fiber access networks like fiber-to-the-office (FTTO) and fiber-to-the-building (FTTB), as well as in indoor cabling for homes, offices, and data centers, where its flexibility, lightweight, strength, and pressure resistance make it an ideal choice.

Feature

Excellent tensile strength

Excellent flexibility and bendability

Different flame-retardant grades can be customized


Application

FTTH (Fiber To The Home)

Pre-terminated in the factory

Especially suitable for last mile aerial connectivity


Structure & Material

      No.

      Item

      Material

      1

      Supporting strength member

      Steel (stranded) wire

      2

      Fiber

      G.652D (B1.3), G.657A1 (B6a1), G.657A2 (B6a2) …

      3

      Tight buffer

      PVC、LSZH

      4

      Strength member

      Aramid yarn

      5

      Outer sheath

      LSZH

      6

      Color

      Black

      11



Cable Property

Cable type

Diameter

Tensile strength

Crush resistance

Bending radius

B6a2

B6a1

B1.3

Tight buffer

able

Long term

Short term

Long term

Short term

Static

Dynamic

Static

Dynamic

Static

Dynamic

(mm)

(N)

(N/100mm)

(mm)

(mm)

(mm)

GJYRCH-1

0.90

3.5 - 6.2

300

600

1000

2200

15

30

20

40

30

60

GJYRCH-2

0.60

3.5 - 6.2

300

600

1000

2200

35

70

35

70

35

70


Fiber Characteristic

Fiber type

Attenuation ( Max )

Macro bend loss ( Max )

1310nm

1550nm

Φ30mm

10 circles(turns)

Φ20mm

1 circles(turn)

Φ15mm

1 circles(turn)

Φ32mm

1 circles(turn)

Φ60mm

100 circles(turns)

(dB/km)

(dB)

G.652 D

0.38

0.28

N/a

N/a

N/a

0.05 @1550nm

0.05 @1625nm

G.657 A1

0.38

0.28

0.25 @1550nm

1.00 @1625nm

0.75 @1550nm

1.50 @1625nm

N/a

N/a

N/a

G.657 A2

0.38

0.28

0.03 @1550nm

0.10 @1625nm

0.1 @1550nm

0.2 @1625nm

0.5 @1550nm

1.0 @1625nm

N/a

N/a


Environmental Performance

Transportation & Storage

Installation

Operation

Remarks

-40℃ — +60℃

-30℃ — +50℃

-40℃ — +60℃

RoHS


All values above can be customized.


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