GJFJH G657A2 1F-4F 4.5mm LSZH Sheath FTTH Round Drop Cable

FIBERFUTURE 1F-4F 4.5mm LSZH FTTH drop cable uses G657A2 fiber with 500N pull and is designed for FTTH projects. Circular flexible cable diameter 4.5mm, with excellent mechanical properties and environmental adaptability, to ensure stable and reliable signal transmission. Low smoke halogen-free material is safe and environmentally friendly, suitable for indoor and outdoor installation.

Fiber Count
Fiber Type

GJFJH G657A2 1F-4F 4.5mm LSZH Sheath FTTH Round Drop Cable

Send Email

Applications

Outdoor aerial installation
FTTH project deployment
High-speed optical connections in buildings
High-performance optical network operations

Cable Structure and Parameter

Item	Contents	Unit	Value
Optical Fiber	Model Number	/	G657A2
	Number	/	1	2	4
	Color	/	Nature
Tight Buffer	Color	/	Blue, Orange, Green, Brown
	Material	/	LSZH
	Diameter	mm	0.9±0.05
Strength Member	Material	1	Aramid Yarn
	Material	2	Glass Fiber Yarn
Outer Jacket	Diameter	mm	4.5±0.3
	Material	/	LSZH
	Color	/	White
Cable Attenuation		dB/km	≦0.4 at 1310nm, ≦0.3 at 1550nm
Cable Weight (Approx.)		kg/km	21.9	23	25

Optical Fiber Type and Properties

Parameter	Conditions	Units	Value
Parameter	Conditions	Units	G652D	G657A1	G657A2	G657B3
Optical Specification
Attenuation	1310 nm	dB/km	≤0.350	≤0.350	≤0.350	≤0.350
	1383 nm	dB/km	≤0.330	≤0.350	≤0.350	≤0.350
	1550 nm	dB/km	≤0.210	≤0.210	≤0.210	≤0.210
	1625 nm	dB/km	≤0.240	≤0.230	≤0.230	≤0.230
Attenuation vs. Wavelength	1310 nm VS. 1285-1330 nm	dB/km	≤0.04	≤0.04	≤0.05	≤0.03
	1550 nm VS. 1525-1575 nm	dB/km	≤0.03	≤0.03	≤0.04	≤0.02
	1550 nm VS. 1480-1580 nm	dB/km	≤0.04	–	–	–
Zero Dispersion Wavelength	\	nm	1300-1324	1300-1324	1300-1324	1300-1324
Zero Dispersion Slope	\	ps/(nm²·km)	0.073-0.092	0.073-0.092	0.073-0.092	≤0.092
Dispersion	1550 nm	ps/(nm·km)	13.3-18.6	13.3-18.6	13.3-18.6
Dispersion	1625 nm	ps/(nm·km)	17.2-23.7	17.2-23.7	17.2-23.7
Polarization Mode Dispersion (PMD)		ps/√km	≤0.2	≤0.2	≤0.2	≤0.2
Cut-off Wavelength λcc	–	nm	≤1260	≤1260	≤1260	≤1260
Mode Field Diameter (MFD)	1310 nm	μm	9.2±0.4	9.2±0.4	8.6±0.4	8.6±0.4
Mode Field Diameter (MFD)	1550 nm	μm	10.4±0.5	10.4±0.5	9.6±0.5	9.6±0.5
Attenuation Discontinuity	1310 nm	dB	≤0.03	≤0.03	≤0.03	≤0.03
Attenuation Discontinuity	1550 nm	dB	≤0.03	≤0.03	≤0.03	≤0.03
Bidirectional Attenuation	1310 nm	dB/km	≤0.04			≤0.05
Bidirectional Attenuation	1550 nm	dB/km	≤0.04			≤0.05
Geometrical
Cladding Diameter		μm	125±0.7	125±0.7	125±0.7	125±0.7
Cladding Non-Circularity		%	≤1.0	≤1.0	≤0.8	≤0.7
Core/Cladding Concentricity Error		μm	≤0.6	≤0.5	≤0.5	≤0.5
Coating Diameter (Uncolored)		μm	242±7 (standard)
Coating Diameter (Uncolored)		μm	200±10 (optional)
Coating/Cladding Concentricity Error		μm	≤12	≤12	≤12	≤12
Curl		m	≥4	≥4	≥4	≥4
Environmental (1550nm, 1625nm)
Temperature Cycling	-60℃ to +85℃	dB/km	≤0.03	≤0.05	≤0.05	≤0.05
High Temperature & High Humidity	85℃, 85% RH, 30days	dB/km	≤0.03	≤0.05	≤0.05	≤0.05
Water Immersion	23℃, 30days	dB/km	≤0.03	≤0.05	≤0.05	≤0.05
High Temperature Aging	85℃, 30days	dB/km	≤0.03	≤0.05	≤0.05	≤0.05

Cable Mechanical Parameters

Item	Contents	Value
Tensile Load	Short Term	500N Fiber Strain≤0.33％
Tensile Load	Long Term	200N
Crush Resistance	Short Term	750
Crush Resistance	Long Term	300
Min. Bending Radius	Installation	25 x Cable Diameter
Min. Bending Radius	Operation	12.5 x Cable Diameter