Author: James Publish Time: 29-07-2025 Origin: Site
Direct buried optical fiber cables are made for underground use. They don’t need extra pipes. These cables handle tough conditions. They are strong, keep out water, and last long. GYTA53 and GYTY53 are two common types. Each type works best in different situations.
Pressure from the ground
Water getting in
Chemicals in the soil
Damage from animals or machines
They have special features:
Metal armor layers
Two plastic coats
Tubes filled with gel to block water
A steel wire in the center for strength
Feature | ||
Armor Layers | Aluminum tape + steel tape | Only steel tape |
EMI Shielding | Yes (aluminum layer) | No |
Rodent Resistance | Better (two armor layers) | Good (one armor layer) |
Cost | More expensive | Cheaper |
Best For | Places with electrical interference | Normal underground use |
Fiber Capacity | Up to 144+ fibers | Up to 144+ fibers |


How it’s made:
Core: Tubes with gel to stop water.
Strength: Steel wire in the middle.
Inner Layer: Plastic coating.
Armor:
First: Aluminum tape (blocks electrical interference).
Second: Steel tape (stops damage).
Outer Layer: Tough plastic cover.
Why use it:
Blocks electrical interference well.
Stops animals from biting through.
Good near power lines or train tracks.

How it’s made:
Core: Tubes with gel like GYTA53.
Strength: Steel wire, sometimes with plastic coating.
Armor: Only steel tape.
Outer Layer: Two plastic coats.
Why use it:
Costs less than GYTA53.
Strong enough for most underground jobs.
Works well in normal areas
Both cables work for:
Long-distance internet lines.
Big buildings or factories.
Places that need tough cables.
Use GYTA53 when:
There’s electrical equipment nearby.
Animals might damage the cable.
Use GYTY53 when:
You want to save money.
The area has no electrical interference.
Q1: Can these cables hang in the air?
A: No. They are too heavy. Use lighter cables for hanging.
Q2: How deep to bury them?
A: About 1 meter deep, or as local rules say.
Q3: Do animals chew through them?
A: Usually no. The steel tape stops most animals. GYTA53 is even better.
Q4: Which cable for power plants?
A: GYTA53, because it blocks electrical interference.
Q5: How long do they last?
A: 20–30 years if installed right.
Zion Communication offers:
✔ Large selection of outdoor fiber cable categories.
✔ A/B (OEM/ODM) branding into the problem you need.
✔ Compatibility with ITU-T, IEC, and TIA/EIA standards.
✔ Cost-effective and rapid delivery.
Contact us now to get datasheets, samples, and a project-based quote.

James is a technical manager and associate at Zion Communication.
Specializes in Optical Fiber communications, FTTH Solutions,
Fiber optic cables, ADSS cable, and ODN networks.
james@zion-communication.com
+86 13777460328
