2. Basic Structural & General SpecificationsItem | Parameter |
Connector Type | Standard SC / Bullet SC |
End Face Polishing | APC to APC |
Optical Fiber Type | 9/125μm, G657A2 / G657B3 single mode fiber |
Cable Outer Diameter | 3.0mm |
Cable Structure | Simplex |
Operating Wavelength | Single Mode: 1310nm, 1550nm |
Outer Jacket Material | LSZH (Low Smoke Zero Halogen) with UV protection |
Jacket Color | Black |
Installation Temperature Range | -10℃ ~ +60℃ |
Operating & Storage Temperature Range | -20℃ ~ +70℃ (Connector); -45℃ ~ +85℃ (Cable) |
CPR Fire Rating | CCA, DCA, ECA |
3. Optical Performance
3.1 Core Optical Index
Item | Standard & Requirement |
Insertion Loss | ≤0.3dB (Compliant with IEC Grade C1; Tested per Telcordia GR-326-CORE 4.2.1, Laser light source at 1310/1550nm) |
Return Loss | ≥60dB (Minimum, Single Mode APC); ≥55dB after long-term testing (Tested per Telcordia GR-326-CORE 4.2.1) |
Interchangeability & Vibration Attenuation Change | ≤0.2dB |
3.2 Fiber Parameter
Item | Parameter |
Mode Field Diameter | 8.8±0.4μm @1310nm; 9.8±0.5μm @1550nm |
Cladding Diameter | 125±0.7μm |
Buffer Layer | LSZH blue material, diameter: 0.9±0.05mm |
Strength Member | Aramid yarn |
3.3 Connector End-Face Quality (Single Mode, IEC 61300-3-35:2015)
Zone | Diameter Range (μm) | Scratches | Defects |
A (Core) | 0 ~ 25 | None | None |
B (Cladding) | 25 ~ 115 | None | None |
C (Adhesive) | 115 ~ 135 | None | None |
D (Contact Area) | 135 ~ 250 | None | None |
E (Remaining Ferrule Area) | - | None | None |
4. Mechanical Performance
4.1 Overall Mechanical Properties of Cable & Connector
Item | Parameter |
Tensile Strength | 100~150N (Connector); Long-term: 100N/260N; Short-term: 500N/800N (Cable) |
Crush Resistance | Long-term: 100N/100mm; Short-term: 500N/100mm |
Pulling Eye Force of Bullet Connector | 150N ~ 200N |
SC Cap Material | SUS304 Stainless Steel |
Boot Size | 3.0mm |
Minimum Bending Radius | Long-term: 10D; Short-term: 20D (D = Cable outer diameter) |
Maximum Installation Span | 40m / 80m |
4.2 Cable Mechanical Reliability Test (IEC 60794-1-2)
All tests shall ensure attenuation increment ≤0.10dB @1550nm after testing.
Test Item | Test Conditions |
Crush Resistance | Method E3; Load: 500N/5mm; Loading duration: 5 minutes |
Torsion Test | Method E7; Test length: 2m; Load: 50N; Twist angle: ±180°, 5 cycles |
Tensile Test | Method E1; Mandrel diameter: 30D; Tensile load: 800N, duration: 30 minutes |
Impact Test | Method E4; Drop height: 300mm; Hammer energy: 0.3J; 3 impact points |
Repeated Bending Test | Method E6; Sheave diameter: 20D; Load: 40N; 25 flexing cycles, 2 seconds per cycle |
Temperature Cycling Test | Method F1; Cycle: 25℃ → -20℃ → 60℃ → -20℃ → 60℃ → 25℃; Soak 12 hours at each temperature; Attenuation increment ≤0.10dB/km @1550nm |
4.3 Connector Pulling Test (Telcordia GR-326-CORE [4.4.3.4](4.4.3.4))
1. Straight Pull Test (0°)
￮ Load 1: 4.5 kgf (10 lbf), hold for 5 seconds
￮ Load 2: 6.8 kgf (15 lbf), hold for 5 seconds
￮ Requirement: Insertion loss variation ≤0.3dB (Max ΔIL ≤0.5dB); Return loss ≥60dB
2. 90° Side Pull Test
￮ Load 1: 1.5 kgf (3.3 lbf), hold for 5 seconds
￮ Load 2: 2.3 kgf (5 lbf), hold for 5 seconds
￮ Requirement: Insertion loss variation ≤0.3dB (Max ΔIL ≤0.5dB); Return loss ≥60dB
5. Structure of Bullet SC/APC Connector
Main components: Bullet SC connector cap, ferrule cap, housing body, ferrule, spring, stop ring, crimp ring, rubber boot.
6. Application & Installation Requirements
6.1 Applicable Environment
• Suitable for conduits with inner diameter greater than 6.5mm and bending radius R＞95mm.
• Mainly used for wall concealed pipe routing, indoor wiring and FTTH terminal connection.
6.2 Pipe Pulling Method
1. Thread 1mm steel wire through the round hole of the connector cap crimp ring.
2. Sleeve the crimp ring onto the steel wire and overlap properly.
3. Use pliers to crimp the ring tightly to fix the steel wire.
4. Pull the steel wire to guide the entire connector through the wall concealed pipe to the target position.
6.3 On-Site Assembly Steps
1. Rotate the metal cap counterclockwise and remove it.
2. Align the red mark on the stop ring, install the inner frame with the inner structure facing upward.
3. Align the key position of the outer housing with the red mark and complete assembly.
7. Length Tolerance
Overall Cable Length (L) | Length Tolerance |
0m ＜ L ＜ 1m | +5cm / 0cm |
1m ＜ L ＜ 10m | +10cm / 0cm |
10m ＜ L ＜ 40m | +15cm / 0cm |
L ＞ 40m | +0.5%×L / 0cm |
8. Customization (OEM)
• Optional cable color, surface printing, jacket material and connector color.
• Custom labels, identification rings, cable tags, packaging boxes and shipping marks.
• Multiple product quality grades available.
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