ASU fiber optic cable, also known as mini ADSS fiber optic cable, is an aerial self-supporting dielectric cable that contains one or two max loose tubes which is filled with up to 12 optical fibers(thus max 24 optical fibers in total). The fibers are protected from moisture by jelly and hydro-expandable material inside the loose tube.
It is all dielectric which has FRP strength member as a traction element, providing pull strength and avoiding electrical discharges between connections. It is much easier and ligher to handle and install compared to other outdoor cable, eliminating the need to use strings or grounding. It’s widely used in FTTH fiber to the home networking.
The Advantages and Characteristics of ASU Fiber Optic Cable
• It is commonly in span of 80m or 120m with less weight.
• It is mainly used in the communication route of overhead high voltage transmission system, and can also be used in the communication line under the environment such as lightning zone and long distance overhead line.
• It is 20% or more cheaper compared with standard ADSS fiber optic cable. ASU fiber optic cable can not only save the use of imported aramid yarn, but also reduce the manufacturing cost due to the reduction of the overall structure size.
• Great tensile strength and high/low temperature resistance
• Service life is expected over 30 years
The Technical Data of ASU Fiber Optic Cable
No. of cable
12
24
Fiber Model
G.652D
Loose Tube
Material
PBT
Diameter
2.5±0.1mm
2.8±0.1mm
Thickness
0.32±0.05 mm
Color
Nature
Strength Member
Material
FRP
Diatmeter
2.5±0.05 mm
2.5±0.1mm
Outer Sheath
Material
PE
Color
Black
Cable Diameter
8.0±0.2 mm
8.5±0.2 mm
Cable Weight
55±5.0 kg/km
65±5.0 kg/km
Allowable Tensile Strength
1000N
1500N
Allowable Crush Resistance
1100N/100mm
2200N/100mm
Min. bending radius
Without Tension
10.0×Cable-φ
Under Maximum Tension
20.0×Cable-φ
Temperature range（℃）
Installation
-20~+60
Transport&Storage
-40~+70
Operation
-40~+70
The Fiber Color Code of ASU Fiber Optic Cable
No.
1
2
3
4
5
6
Color
Blue
Orange
Green
Brown
Gray
White
No.
7
8
9
10
11
12
Color
Red
Black
Yellow
Violet
Pink
Aqua
The Main Mechanical & Environmental Performance Test
Item
Test Method
Acceptance Condition
Tensile StrengthIEC 794-1-2-E1
– Load: 1500N- Length of cable: about 50m
– Fiber strain £ 0.33%- Loss change £ 0.1 dB @1550 nm- No fiber break and no sheath damage.
Crush TestIEC 60794-1-2-E3
– Load: 1000N/100mm- Load time: 1min
– Loss change £ 0.1dB@1550nm- No fiber break and no sheath damage.
Impact TestIEC 60794-1-2-E4
– Points of impact: 3- Times of per point: 1- Impact energy: 5J
– Loss change £ 0.1dB@1550nm- No fiber break and no sheath damage.
Temperature Cycling TestIEC60794-1-22-F1
– Temperature step:+20oC→-40oC→+70oC →+20oC- Time per each step: 12 hrs- Number of cycle: 2
– Loss change £ 0.1 dB/km@1550 nm- No fiber break and no sheath damage.
The Properties of Single Mode Optical Fiber (ITU-T Rec. G.652.D)
