Naming Rules for Optical Fiber Cables
Outside Plant Optical Fiber Cables' Naming Rules

Class	Strength member	Structural features	Sheath	Outer sheath	Fibre type
GY-Outdoor	(void)-metallic	D-Fibre ribbon	Y-PE Sheath	33-Steel wires armor+PE	B1-G652
GL-Micro trench	F-FRP	G-Slotted core	A-Aluminum Tape+PE	53-Steel tape armor+PE	B1.3-G652D
GP-Sewer	H-Aramid yarns	X-Uni-tube	S-Steel tape+PE	54-Steel tape armor+PE+nylon sheath	B4-G655
	G-Glass fibre yarns	T-Compound Filled	W-Steel tape+PE+2Steel wires	63-Glass fibre yarn armor+PE	B6-G657
	A-Aramid yarns	(void)-Dry water blocking	F-Glass fibre tape+PE	333-Double steel wire armor+PE	B6a2-G657A2
		C-Self-supporting			A1a-50/125μm
		Z-Flame-retardant			A1b-62.5/125μm
		B-Flat shape
		8-Figure 8

Drop Optical Fiber Cables' Naming Rules

Class	Strength member	Structural features	Sheath	Fibre type
GJX-Indoor Wiring	(void)-metallic	D-Fibre ribbon	H-LSZH	B6-G657
GJYX-Outdoor Drop	F-FRP	C-Self-supporting		B6a2-G657A2

Indoor Optical Fiber Cables' Naming Rules

Class	Application Scope	Strength member	Structural features	Sheath	Fibre type
GJ-Indoor	B-Branch	F-Non Metallic	J-Tigh buffer	H-LSZH	B1.3-G652D
	P-Bundle		B-Flat shape	V-PVC	B4-G655
	D-Ribbon			U-PU	B6-G657
					B6a2-G657A2

Recommendations for Conventional Optical Fiber Cables
Types of Conventional Optical Fiber Cables

Type

FTTH

Metropolitan Area Network Access Network

Backbone Network

Drop

Distribution

Feeder

Duct

Aerial

S-S

Duct

Aerial

S-S

U-W

Buried

Aerial

S-S

U-W

ADSS-SJ

√

√

√

√

ADSS-DJ

√

√

√

√

GJXH

√

GJXFH

√

GJYXCH

√

√

GJYXFCH

√

√

GJXDH

√

GJXFDH

√

GJYXDCH

√

GJYXFDCH

√

GJYXFHA

√

√

√

GJYXFHS

√

√

√

GJYXFH53

√

√

√

GYTA

√

√

√

√

√

GYTS

√

√

√

√

√

GYFS

√

√

√

√

√

GYTY53

√

√

√

GYFY53

√

√

√

GYTS54

√

√

√

√

√

GYTA53

√

√

√

GYTS53

√

√

√

GYTA33/333

√

√

√

√

GYTS33/333

√

√

√

√

GYTA53+33/333

√

√

√

√

GYFTY

√

√

√

√

√

GYFTA(S)

√

√

√

√

√

GYFTY63

√

√

√

√

√

√

√

GYFY63

√

√

√

√

√

√

√

GYFTA53

√

√

√

GYXTY

√

√

√

√

√

GYFXTY

√

√

√

√

√

GYXTW

√

√

√

√

√

GYDTA

√

√

√

√

√

√

GYDXTW

√

√

√

√

√

√

GYTC8A(S)

√

√

GYFTC8A(S)

√

√

GYFC8Y

√

√

GYFC8Y53

√

GYXTC8A(S)

√

√

The Structure of Conventional Optical Fiber Cables

Dielectric Single Jacket ADSS
NO.	NAME
ADSS-SJ-80	Single Jacket ADSS G.652D span 80m
ADSS-SJ-100	Single Jacket ADSS G.652D span 100m
ADSS-SJ-120	Single Jacket ADSS G.652D span 120m
ADSS-SJ-200	Single Jacket ADSS G.652D span 200m
ADSS-SJ-300	Single Jacket ADSS G.652D span 300m

 

Dielectric Double Jacket ADSS
NO.	NAME
ADSS-DJ-150	Double Jacket ADSS G.652D span 150m
ADSS-DJ-200	Double Jacket ADSS G.652D span 200m
ADSS-DJ-300	Double Jacket ADSS G.652D span 300m
ADSS-DJ-500	Double Jacket ADSS G.652D span 500m
ADSS-DJ-800	Double Jacket ADSS G.652D span 800m

 

(Steel) Self-Supporting Drop Cable
NO.	NAME
GJYXCH-1	GJYXCH-1 G657A  (Steel) Self-Supporting Drop cable
GJYXCH-2	GJYXCH-2 G657A  (Steel) Self-Supporting Drop cable
GJYXCH-4	GJYXCH-4 G657A  (Steel) Self-Supporting Drop cable

 

Self-Supporting GFRP Drop Cable
NO.		NAME
GJYXFCH-1		GJYXFCH-1 G657A  (Steel) Self-Supporting GFRP Drop cable
GJYXFCH-2		GJYXFCH-2 G657A  (Steel) Self-Supporting GFRP Drop cable
GJYXFCH-4		GJYXFCH-4 G657A  (Steel) Self-Supporting GFRP Drop cable

 

(Steel) Drop Cable
NO.		NAME
GJXH-1		GJXH-1 G657A (Steel) Drop Cable
GJXH-2		GJXH-2 G657A (Steel) Drop Cable
GJXH-4		GJXH-4 G657A (Steel) Drop Cable

 

Unitube Light-armored Cable
NO.	NAME
GYXTW-4	Unitube Light-armored Cable GYXTW 4 cores G.652D
GYXTW-6	Unitube Light-armored Cable GYXTW 6 cores G.652D
GYXTW-8	Unitube Light-armored Cable GYXTW 8 cores G.652D
GYXTW-10	Unitube Light-armored Cable GYXTW 10 cores G.652D
GYXTW-12	Unitube Light-armored Cable GYXTW 12 cores G.652D

 

Double Sheathed Cable
NO.	NAME
GYXTW53-4	Double Sheathed Cable GYXTW53 4 cores G.652D
GYXTW53-6	Double Sheathed Cable GYXTW53 6 cores G.652D
GYXTW53-8	Double Sheathed Cable GYXTW53 8 cores G.652D
GYXTW53-10	Double Sheathed Cable GYXTW53 10 cores G.652D
GYXTW53-12	Double Sheathed Cable GYXTW53 12 cores G.652D

 

Steel wires Armored Cable
NO.	NAME
GYFXTY-4	Steel wires Armored GYXTW53 4 cores G.652D
GYFXTY-6	Steel wires Armored GYXTW53 6 cores G.652D
GYFXTY-8	Steel wires Armored GYXTW53 8 cores G.652D
GYFXTY-10	Steel wires Armored GYXTW53 10 cores G.652D
GYFXTY-12	Steel wires Armored GYXTW53 12 cores G.652D

 

Stranded Loose Tube Cable
NO.	NAME
GYTA 2-48	Stranded Loose Tube Cable GYTA 2-48 cores G.652D
GYTA > 48	Stranded Loose Tube Cable GYTA > 48 cores G.652D
GYTS 2-48	Stranded Loose Tube Cable GYTS 2-48 cores G.652D
GYTS > 48	Stranded Loose Tube Cable GYTS > 48 cores G.652D
GYFTY 2-48	Stranded Loose Tube Cable GYFTY 2-48 cores G.652D
GYFTY > 48	Stranded Loose Tube Cable GYFTY > 48 cores G.652D

 

UG Double Sheathed Cable
NO.		NAME
GYTA53 2-48		UG Double Sheathed Cable GYTA53 2-48 cores G.652D
GYTA53 > 48		UG Double Sheathed Cable GYTA53 > 48 cores G.652D
GYTS53 2-48		UG Double Sheathed Cable GYTS53 2-48 cores G.652D
GYTS53 > 48		UG Double Sheathed Cable GYTS53 > 48 cores G.652D

 

Figure 8 Cable
NO.	NAME
GYXTC-8S	Figure 8 Cable GYXTC-8S 2-6 cores G.652D
GYTC-8S	Figure 8 Cable GYTC-8S G.652D
GYTC-8A	Figure 8 Cable GYTC-8A G.652D
GYTS-8S	Figure 8 Cable GYTS-8S G.652D
GYTA-8S	Figure 8 Cable GYTA-8S G.652D

Color Arrangement Rules for Optical Fiber & Indoor Fiber Optic Cable 
Color Arrangement of Fibres and Loose Tube
Standard Fibre Color Sequence, which complies with Standard TIA/EIA-598-2014.

Fibers Color Standard Sequence
No.	1	2	3	4	5	6
Color	Blue	Orange	Green	Brown	Gray	White(Natural)
No.	7	8	9	10	11	12
Color	Red	Black	Yellow	Violet	Pink	Aqua

Note:
1. If there are less than 12 fibers in a loose tube, the color sequence is followed continuously, starting from No.1,
2. In the standard color sequence, No.6 white color can be replaced by natural color, called the W color sequence.
3. Color arrangement can be customized.

Tubes Color Standard Sequence
No.	1	2	3	4	5	6
Color	Blue	Orange	Green	Brown	Gray	White(Natural)
No.	7	8	9	10	11	12
Color	Red	Black	Yellow	Violet	Pink	Aqua

 

Tigh Buffer Fibers Color Standard Sequence
No.	1	2	3	4	5	6
Color	Blue	Orange	Green	Brown	Gray	White(Natural)
No.	7	8	9	10	11	12
Color	Red	Black	Yellow	Violet	Pink	Aqua

 

Indoor Fiber Optic Cable Color Standard Sequence

Colors of Cable Sheaths comply with YD/T1258 Default color for single-mode fibre: Yellow; Default color for multimodefibre:  Orange   Note: Color arrangement can be customized.

The properties of single mode optical fiber 
(ITU-T Rec. G652|G657)

Category	Description		G.652.D Normal	G.652.D Best	G.657.A1	G.657.A2	Unit/单位 Unidade
Transmission Characteristics 传输特性 Características de transmissão	850nm (multimode optical fiber communication system) O:1260-1360(237.9-220.4THZ) E: 1360-1460 (the least commonly used, the attenuation is large)      (220.4-205.3) frequency range S:1460-1530 (commonly used in PON system)     (205.3-195.9) C: 1530-1565 (minimum attenuation)       (195.9-191.6) L: 1565-1625 (2nd lowest attenuation)       (191.6-184.5) U: 1625-1675 (mainly used for network monitoring)        (184.5-179.0) Attenuation Coefficient	@1310 nm	≤0.35	≤0.34	≤0.34	≤0.34	dB/km
		@1285-1330 nm		≤0.37	≤0.37	≤0.37	dB/km
		@1383 nm(after hydrogen aging)氢老化后 （水峰衰减）	≤0.30	≤0.30	≤0.31	≤0.31	dB/km
		@1460 nm
		@1490 nm	≤0.24		≤0.23	≤0.23	dB/km
		@1550 nm	≤0.22	≤0.21	≤0.2	≤0.2	dB/km
		@1525-1575 nm		≤0.22	≤0.21	≤0.21	dB/km
		@1625 nm	≤0.25	≤0.24	≤0.22	≤0.22	dB/km
	Mode Field Diameter 模场直径	@1310 nm	8.6±0.4	9.0±0.4	9.0±0.3	8.6±0.4	µm
		@1550 nm	9.8±0.5	10.2±0.4	10.2±0.4	9.6±0.5	µm
	Cable Cut-off wavelength(λ cc) 光缆截止波长		≤1260	≤1260	≤1260	≤1260	nm
	Zero Dispersion Wavelength 零色散波长		1300-1324	1300-1324	1300-1324	1300-1324	nm
	Zero Dispersion Slope 零色散斜率		≤0.092	≤0.092	≤0.09	≤0.09	ps/nm²/km
	Dispersion Coefficient 色散系数	@1285-1339 nm		≤3.4	≤3	≤3.4	ps/(nm·km)
		@1271-1360 nm		≤5.3			ps/(nm·km)
		1525-1575nm
		1530-1565nm
		1565-1625nm
		@1550 nm	≤ 18	≤ 18	≤ 17	≤ 18	ps/(nm·km)
		@1625 nm	≤ 22	≤ 22	≤ 21	≤ 22	ps/(nm·km)
	PMD Maximum Individual Fiber 偏正模色散单根光纤		≤0.1	≤0.1	≤0.1	≤0.1	ps√km
	PMD Link Design Value 偏正模色散链路设计值		≤0.06	≤0.06	≤0.06	≤0.06	ps/√km
	Point Discontinuity 点不连续性	@1310 nm, @1550 nm	≤0.05	≤0.05	≤0.05	≤0.05	dB
	EGRI Effective Group Refractive Index 有效群折射率	@1310 nm		1.4671	1.4671	1.4676
		@1550 nm		1.4675	1.4675	1.4683
		@1625 nm		1.468	1.468	1.4685
	Macro Bending Loss 宏观弯曲损耗 A1  弯曲半径10mm A2 弯曲半径7.5mm B2   弯曲半径7.5mm B3    弯曲半径5mm	10turns of 15mm radius			≤0.25	≤0.03	@1550 nm dB
		100turns of 25mm radius
		1turns of 16mm radius			≤0.25	≤0.03
		1turns of 10mm radius			≤0.75	≤0.1
		1turns of 7.5mm radius				≤0.2
		1turns of 5mm radius
		100turns of 30mm radius	≤0.05	≤0.05			@1625 nm dB
		100turns of 25mm radius
		10turns of 15mm radius			≤1.0	≤0.1
		1turns of 10mm radius			≤1.5	≤0.2
		1turns of 7.5mm radius				≤0.5
		1turns of 5mm radius
Category	Description		G.652.D 常规	G.652.D 品牌1	G.657.A1	G.657.A2	Unit/单位 Unidade
Dimensions 几何参数 Dimensões	Cladding Diameter 包层直径		125±0.7	125±0.5	125±0.5	125±0.5	µm
	Core / Cladding Concentricity Error 芯/包层同心度误差		≤0.5	≤0.4	≤0.4	≤0.4	µm
	Cladding Non-circularity 包层不圆度百分比		≤1.0	≤0.7	≤0.7	≤0.7	%
	Coating Diameter 涂覆层直径		245±5	245±5	242±5	242±5	µm
	Coating / Cladding Concentricity Error涂覆层/包层同心度误差		≤12	≤12	≤8	≤8	µm
Mechanical Characteristics 机械性能 Características mecânicas	Proof Test 张力筛选试验	Fiber Strain 纤维应变	≥1	≥1	≥1	≥1	%
		Fiber Load 光纤负载	≥9	≥9	≥9	≥9	N
		Stress 压强	≥100	≥100	≥100	≥100	kpsi
	Dynamic Stress Corrosion Susceptibility Factor 动态疲劳参数	Unaged &Aged(30 days@85℃，85%R.H.)	≥20	≥20	≥20	≥20
	Coating Strip Force 涂层剥离力	Peak Value 峰值	1.3-8.9	1.3-8.9	1.3-8.9	1.3-8.9	N
	Fiber Curl 光纤翘曲半径		≥4	≥4	≥4	≥4	m
Environmental Characteristics 环境性能 Características ambientais	Dry heat aging干热(30days@85℃)	@1310 nm, @1550 nm	≤0.05	≤0.05	≤0.05	≤0.05	dB/km
	Accelerated ageing 湿热(30days@85℃，85%R.H.)	@1310 nm, @1550 nm	≤0.05	≤0.05	≤0.05	≤0.05	dB/km
	Temperature Cycling温度循环 (-60℃- +85℃)	@1310 nm, @1550 nm	≤0.05	≤0.05	≤0.05	≤0.05	dB/km
	Water Soak浸水(30days@23℃)	@1310 nm, @1550 nm	≤0.05	≤0.05	≤0.05	≤0.05	dB/km