What Is an Outdoor Single Mode Fiber Patch Cord?
An outdoor single mode fiber patch cord (also called an OS2 outdoor jumper or outdoor fiber optic cable assembly) is a factory-terminated fiber link designed to survive direct exposure to UV radiation, moisture, temperature cycling, and mechanical stress - conditions that destroy standard indoor patch cords within months.
The cable core uses G.657A2 bend-insensitive single mode fiber (9/125 μm) - identical glass to indoor OS2 - but wrapped in an armored, UV-stabilized LSZH or TPU jacket with fully sealed, IP67 or IP68-rated connectors at each end. This combination delivers ≤ 0.3 dB insertion loss and ≥ 60 dB return loss (APC) across an operating range of –40 °C to +75 °C - unchanged whether the cord is on an Arctic tower or in a tropical outside-plant cabinet.
GloryOptics outdoor patch cords are manufactured and 100 % optically tested at our Ningbo factory to IEC 61300-3-4, Telcordia GR-326, and IEC 61754 standards. Every cable ships with a printed per-unit test certificate: actual IL and RL values, not a blanket spec-sheet claim.
Complete Specifications
| Parameter | Specification | Standard / Note |
|---|---|---|
| Fiber Type | G.657A2 OS2 Single Mode (also G.652D on request) | ITU-T G.657 |
| Core / Cladding Diameter | 9 / 125 μm ± 1 μm | IEC 60793-2-50 |
| Numerical Aperture | 0.13 | - |
| Insertion Loss (typical) | ≤ 0.2 dB (max 0.3 dB) | IEC 61300-3-4 |
| Return Loss - UPC | ≥ 50 dB | Telcordia GR-326 |
| Return Loss - APC | ≥ 60 dB (8° ± 0.5° polish) | IEC 61300-3-6 |
| Wavelengths | 1310 nm / 1550 nm (1625 nm on request) | - |
| Cable OD (standard) | 5.0 mm duplex / 7.0 mm duplex | - |
| Jacket Material | LSZH (default) · TPU · PVC · Armored | IEC 60332 |
| Jacket Color | Black (outdoor default) · Yellow · Custom | - |
| Strength Member | Aramid yarn (Kevlar®) + steel armor option | - |
| Tensile Load (rated) | ≥ 200 N (standard) · ≥ 1000 N (armored) | IEC 61300-2-4 |
| Crush Resistance | ≥ 1000 N/100 mm | IEC 61300-2-3 |
| Minimum Bend Radius | 7.5 mm (G.657A2) / 30 mm (installation) | - |
| Operating Temperature | –40 °C to +75 °C | IEC 61300-2-22 |
| Storage Temperature | –45 °C to +85 °C | - |
| IP Rating (connector) | IP67 / IP68 (mated and unmated) | IEC 60529 |
| Mating Cycles | ≥ 500 (IEC 61300-2-2) | IEC 61300-2-2 |
| Humidity Resistance | 95 % RH at 40 °C, 21 days, no degradation | IEC 61300-2-26 |
| UV Resistance | 2000 h UV exposure, no cracking or loss increase | ISO 4892-2 |
| Compliance | CE · RoHS · REACH · IEC 61754 · GR-326 | - |
| Available Lengths | 0.5 m – 500 m (custom, any increment) | ±0.5 % tolerance |
| Lead Time | Standard lengths: 3–5 days · Custom: 7–15 days | FOB Ningbo |
Why Choose GloryOptics Outdoor Patch Cords
Every feature is designed to solve a real deployment challenge - from antenna tower single-person installs to extreme-climate rural infrastructure
Per-Unit IL/RL Test Certificate
True –40 °C to +75 °C Operation
G.657A2 Bend-Insensitive Fiber
IP67 / IP68 Sealed Connectors
Any Connector Combination
Custom Length 0.5 m – 500 m
Where This Cable Solves Real Problems
From 5G rollouts to smart factory automation, this outdoor patch cord is the interconnect of choice wherever reliability and speed of deployment matter.
- FTTA antenna feeder cables
- 4G LTE / 5G NR base stations
- RRH / RRU to BBU CPRI links
- Small cell outdoor deployments
- Distributed Antenna Systems (DAS)
- Harsh-environment factory floors
- Robotics & motion control networks
- Outdoor industrial Ethernet
- Oil field & mine communications
- Chemical plant sensor networks
- Traffic monitoring systems
- Tunnel communication networks
- Roadside ITS units
- Video surveillance (outdoor PTZ)
- Smart city sensor hubs
- Military communication systems
- Marine & offshore platforms
- Emergency response networks
- Remote monitoring stations
- Fiber optic sensing systems
Frequently Asked Questions
Q: What is the difference between indoor and outdoor single mode fiber patch cords?
A: Outdoor single mode fiber patch cords use UV-resistant LSZH or TPU jackets, armored construction, and IP-rated sealed connectors to withstand moisture, UV radiation, temperature extremes (–40 °C to +75 °C), and physical impact. Indoor cords use lighter PVC/LSZH jackets rated for dry, controlled environments only. Using an indoor cord outdoors typically causes UV jacket cracking within 12–18 months, and moisture ingress at the connector - raising insertion loss by 3–8 dB - within weeks. The glass fiber inside is optically identical (G.657A OS2 9/125 μm); it is the mechanical and environmental protection that differs.
Q: What IP rating do outdoor fiber patch cord connectors need?
A: Most outdoor and aerial installations require at minimum IP67 (submersion up to 1 m for 30 min). Underground, direct-burial, or tower-top FTTA environments should use IP68-rated assemblies (continuous submersion beyond 1 m). For connectors in duct manholes that may flood, IP68 is the correct specification. GloryOptics outdoor patch cords are available in both IP67 and IP68 configurations - specified per order.
Q: What fiber type should I use for an outdoor single mode patch cord?
A: G.657A2 (OS2 9/125 μm) is the current standard. Its bend-insensitive design (minimum bend radius 7.5 mm) reduces macrobend loss during installation in tight conduit runs or antenna tower cable trays. G.652D is also used in armored FTTA assemblies where the bend radius is not constrained. Avoid G.651 (multimode) for any single-mode application.
Q: Can outdoor fiber patch cords be used for 5G base station installations?
A: Yes. FTTA (Fiber to the Antenna) 5G base station installations are the primary use case for armored outdoor single mode patch cords. These assemblies connect the BBU (Baseband Unit) to the RRU/RRH (Remote Radio Head) at the antenna mast. ODC, FullAXS, ODVA, and LC duplex connectors are the most common interfaces specified by equipment vendors - Ericsson (FullAXS), Huawei (ODC / Huawei Mini), Nokia (ODC). Operating temperature must cover –40 °C to +75 °C; tensile rated ≥ 200 N; cable OD typically 5.0 mm or 7.0 mm.
Q: What is the maximum length for an outdoor single mode fiber patch cord?
A: Custom factory-terminated lengths from 0.5 m to 500 m are available. For FTTA tower installations, typical lengths are 3 m – 100 m. For building-to-building outdoor fiber runs, lengths up to 300 m are common; beyond 300 m, consider a loose-tube trunk cable with patch cord assemblies at each termination point to minimize connector count and insertion loss budget. All long-run custom lengths include OTDR test documentation.
Q: What is the difference between OS1 and OS2 fiber for outdoor use?
A: OS2 (ITU-T G.652D / G.657A) is the correct specification for outdoor single mode patch cords in all modern installations. It offers lower attenuation (≤ 0.4 dB/km at 1310 nm) versus OS1's ≤ 1.0 dB/km - a critical margin for long-haul OSP links. OS1 is a legacy specification, primarily associated with tightly-buffered indoor cable, and is rarely specified in new builds. All GloryOptics outdoor patch cords are OS2.
Q: How do I install an outdoor fiber patch cord through conduit?
A: Step 1: Order the outdoor patch cord with pulling sheath option - a removable rodding sheath that staggers the connectors for conduit clearance.
Step 2: Fish a pull rope or rod through the conduit first.
Step 3: Tape the pulling sheath nose to the pull rope; wrap connector ends in foam.
Step 4: Pull steadily - do not exceed the cable's rated tensile load (typically 200 N for standard, 1000 N for armored).
Step 5: Slide the sheath off, snap on dustcaps, and clean connector end-faces with an IEC 61300-3-35 grade cleaner before mating.
Step 6: Verify insertion loss with a reference-grade optical power meter before putting the link live.
Our Quality Promise
Comprehensive 3-Year Warranty
We confidently back all our products with a 3-year warranty. Our specific service policy is: within one year for quality issues, we take full responsibility for returns; within two years, for replacements; and within three years, for repairs.
Clear & Competitive MOQ
We welcome both trial and bulk orders. Our standard Minimum Order Quantity (MOQ) is 50 units. We also offer free samples for testing to help you evaluate our quality with confidence.
Fast & Reliable Logistics
We guarantee delivery within 10 days for standard items. Our logistics advantage includes cost-effective door-to-door service to simplify shipping for you.
Our Foundation
Backed by 18 years of experience since 2008, we control quality from our own factory, accept OEM/ODM requests, and maintain ready stock for wholesale. We focus on delivering the optimal balance of price and quality directly to end customers worldwide.
Your trust is our priority. Partner with us for dependable fiber optic solutions supported by clear promises.
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