ADSS cable specification primarily depends on the span length and environmental/meteorological conditions:

• Span Length: Specify the exact distance between poles or towers (e.g., 100m, 200m, 500m).
• Operating Environment: Indicate if the cable will be installed on high-voltage power lines. If the spatial electric potential exceeds 35kV, an anti-tracking (AT) outer sheath is required; if ≤ 35kV, a standard PE sheath is sufficient.
• Weather Conditions: Maximum wind speed, ice thickness, and extreme temperature ranges allow us to calculate aramid yarn tensile strength and cable load capacity.

The primary difference lies in the moisture-barrier and mechanical armor material:

• GYTA (Aluminum Tape Armored): Uses an aluminum tape layer, offering excellent moisture resistance and lighter weight. It is ideal for duct/conduit installations or standard aerial mounting.
• GYTS (Steel Tape Armored): Uses a corrugated steel tape layer, providing superior crush resistance and impact protection. It is best suited for direct duct or heavy-load aerial environments.

Huihong direct buried cables (such as GYTA53 / GYTS53) feature a double-sheath + double-armor structure. A thick corrugated steel tape is sandwiched between the inner and outer PE jackets, enduring long-term crush loads up to 3000N/100mm to withstand soil pressure and rodent damage in harsh outdoor conditions.

• Simplex (Single-core): Used for unidirectional transmission, BIDI (Bi-Directional) patch cord manufacturing, or internal equipment cross-connects.
• Duplex (Dual-core): Typically built as a 'Zipcord' parallel structure, widely used for standard duplex patch cables (e.g., LC-LC, SC-SC) to handle independent Transmit (TX) and Receive (RX) channels.

• Distribution Cables: Feature multiple tight-buffered fibers bundled under a single outer jacket. They have a smaller outer diameter and high flexibility, making them ideal for dense vertical risers or horizontal conduit runs. Terminal connection requires splicing or patch panels.
• Breakout Cables: Each individual fiber has its own aramid strength member and a dedicated 2.0mm/3.0mm sub-jacket. Once stripped, each branch can directly accept connectors for rugged, direct equipment plug-in without additional splicing enclosures.

• Bow-Type Drop Cable: Reinforced with two parallel FRP or steel strength members. It offers a compact profile, low bend radius, and easy stripping—ideal for indoor wall-clipping or conduit pulling.
• Figure-8 Aerial Drop Cable: Adds an extra self-supporting steel wire messenger above the standard Bow-Type cable, allowing direct aerial deployment between outdoor utility poles without needing a separate messenger wire.

• Steel Wire: Provides higher tensile strength at a cost-effective price point, suitable for standard aerial or fixed installations.
• FRP / KFRP (Non-metallic): Completely non-conductive, offering protection against lightning strikes and electromagnetic interference. It is the preferred choice for high-lightning zones, proximity to power lines, or all-dielectric project specs.

Data center MPO/MTP networks rely on three standard polarities:

• Type A (Straight-Through): Key Up to Key Down, pin 1 maps to pin 1.
• Type B (Fully Flipped): Key Up to Key Up, pin 1 maps to pin 12.
• Type C (Pair Flipped): Adjacent pairs are flipped (1-2, 3-4...), used for duplex transceiver links.
• Huihong Support: We confirm polarity and gender (Male/Female PINs) prior to production based on your network architecture (e.g., 40G SR4 or 100G PSM4) to guarantee plug-and-play installation.

• Capacity: Ensure the closure's maximum fiber count exceeds your current cable fibers, leaving 20%–50% reserve space for future splice tray expansion.
• Sealing Type: Use Heat-Shrink Sealing for outdoor aerial or underground duct environments. Choose Mechanical Sealing (bolts and silicone gaskets) for manholes or frequently accessed maintenance points.

100% of Huihong factory-assembled optical components undergo rigorous testing:

1. Insertion & Return Loss Testing (IL/RL): Single-mode insertion loss ≤ 0.2dB, return loss ≥ 50dB (UPC) / ≥ 60dB (APC).
2. 3D End-face Geometry Testing (Interferometer): Strict measurement of ROC (Radius of Curvature), Apex Offset, and Fiber Height.
3. Visual Inspection: Visual inspection under microscope to ensure zero scratches or contaminants before hermetic packaging.