Is GYTS suitable for direct burial?

GYTS is commonly used in ducts and lash-to-messenger aerial routes. For harsh direct-buried corridors and higher crush loads, consider double-jacket armored designs such as GYTA53/GYTY53.

Do I need to bond/earth the armor?

Where required by local code, bond and earth the PSP steel tape. Follow utility construction standards for grounding.

What fiber types are available?

OS2 G.652D as standard; G.657A1/A2 and multimode OM2/3/4 are available on request.

GYTS Corrugated Steel Armored Fiber | Wholesale

Description

Product Overview

GYTS is a stranded loose-tube outdoor cable armored with longitudinal corrugated steel tape. Buffer tubes are filled with thixotropic gel around color-coded fibers, then stranded around a central steel strength member. The armored core is wrapped and sheathed with black PE. The result is a mechanically robust cable for ducts and lash-to-messenger aerial routes where crush loads, rodents, and moisture are common risks.

GYTS armored fiber cable gallery with structure and cross-section views

Key benefits

PSP armor: high crush strength and rodent deterrence for ducts and aerial corridors
100% water-blocked: gel in tubes + flooded core for longitudinal moisture protection
Central steel strength member: controls tensile and thermal strain
2–144 fibers: scalable feeder/distribution, easy color ID
Wide temp window: UV-resistant PE for long outdoor service life

Typical Applications

Underground ducts and handhole networks in metro and access builds
Lash-to-messenger aerial spans (non-self-supporting)
Feeder and distribution rings for FTTH/FTTx, campus, and utility networks
Rural routes with rodent exposure and occasional construction impact

Construction (from center outward)

Central strength member: phosphated steel wire with PE sheath (on smaller fiber counts)
Loose tubes (PBT) with thixotropic gel; color-coded fibers
Stranded core with filling compound (100% filled)
Longitudinal corrugated steel tape (PSP) armor
Outer sheath: UV-resistant black PE; ripcord under jacket

GYTS stranded loose tube armored fiber cable with PE jacket, PSP corrugated armor, water blocking jelly and parallel strength members; up to 12–216 fibers.

Specifications

A) Construction & materials

Item	Spec	Notes
Fiber count	2–144 cores	OS2 standard; MM on request
Fiber type	ITU-T G.652D standard; G.657A1/A2, OM2/OM3/OM4 optional	Select per bend budget
Loose tubes	PBT, gel-filled	Color-coded
Central strength member	Phosphated steel wire (PE covered on small counts)	Tensile and temperature stability
Armoring	Double-sided chrome-coated corrugated steel tape (PSP)	Longitudinal wrap
Water blocking	Tube gel + core filling compound (100% filled)	Longitudinal moisture defense
Outer jacket	PE, UV-resistant, black	LSZH optional for transitions
Marking	Meter marks + print legend	QA traceability

B) Optical (typical, OS2)

Parameter	Spec
Attenuation	≤0.35 dB/km @1310 nm; ≤0.21 dB/km @1550 nm
Chromatic dispersion	≤18 ps/(nm·km) @1310 nm; ≤22 @1550 nm
PMD (cabled, design)	≤0.20 ps/√km

C) Mechanical & environmental

Parameter	Spec	Notes
Tensile strength	1500 N (short-term) / 600 N (long-term)	Per your spec
Crush resistance	1000 N/100 mm	PSP spreads load
Minimum bend radius	Install ≥20×OD; Static ≥10×OD	Use OD per build
Temperature	Storage/operation −40 ~ +70 °C; Install −20 ~ +60 °C	Outdoor PE
UV/rodent	UV-resistant; PSP deters gnawing	Duct/aerial ready

D) Dimensions & weight (typical by fiber count)

Fiber count	Approx. OD (mm)	Approx. weight (kg/km)	Tubes × fibers
2–12F	9.5–10.5	90–140	2–4×6F or 6×2F
24–48F	10.5–12.5	120–170	4–8×6F
72–96F	12.5–14.5	160–220	6–8×12F
144F	15.5–17.5	210–260	12×12F

E) Standards & compliance

ITU-T G.652D; optional G.657A1/A2, OM2/3/4
IEC 60794-1/-5 family
RoHS/REACH; CPR on request (EU tenders)

Installation & handling (add these two lines)

Bond and earth the PSP armor per local electrical code when required.
For aerial lash, follow messenger tension and span guidelines; PSP armor is not a self-supporting messenger.

GYTS/GYFTS armored optical cable cross-sections: 12, 24, 36, 48, 72, 96, 144 cores

Installation & Handling

Duct: use approved pulling eyes/swivels and compatible lubricant; observe 20×OD during pulls.
Aerial (lashed): follow messenger tension and span guidelines; PSP armor is not a self-supporting messenger.
Sealing: close handholes and duct ends; gel and core filling protect longitudinally but do not replace proper sealing.
Bonding/earthing: bond PSP armor per local electrical codes where required.
Storage: keep drums upright; respect minimum drum flange diameters to maintain bend radius.

Ordering Information (example)

Format: GYTS-[FiberCount]-[FiberType]-[Jacket]-[Span/Install]-[Length]
Example: GYTS-96F-G652D-PE-OutdoorDuct-2000m

Options:

Fiber types: G.652D (std), G.657A1/A2, OM2/OM3/OM4
Jacket: PE (std); LSZH optional for special transitions
Print/marking: custom legend, metre marks, customer logo
Tests: routine factory test report for IL/length; type test on request

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GYTS Corrugated Steel Armored Fiber Optic Cable (2–144 Core) — PSP Armored, Duct/Aerial, 100% Water-Blocked