Comprehensive Product Summary – Fiber Patch Cord SC/ST MM 3m (Model: FPC-SCST-MM3M)

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### 1. Product Overview

Product Name: Fiber Patch Cord SC/ST MM 3m
Model Number: FPC-SCST-MM3M
Series: Fiber Patch Cord Series
Article Number: FPC-SCST-MM3M
Manufacturer: ORing Industrial Networking Corp.
Product Category: Fiber Optic Connectivity Accessories
Product Type: Multi-mode Fiber Patch Cord (SC to ST connectors)
Website: [www.oring-networking.com](http://www.oring-networking.com)

The FPC-SCST-MM3M is a high-quality, multi-mode fiber optic patch cord designed for reliable, high-speed data transmission in industrial, commercial, and enterprise networking environments. It features SC (Subscriber Connector) on one end and ST (Straight Tip) connector on the other, providing compatibility between different fiber optic interface types. With a 3-meter cable length and 62.5/125 μm core/cladding diameter, this patch cord ensures optimal signal integrity and low insertion loss for short- to medium-distance optical links.

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### 2. Key Features

- Connector Type: SC to ST (hybrid configuration for cross-interface connectivity)
- Fiber Type: Multi-mode optical fiber (62.5/125 μm)
- Cable Length: 3 meters (standardized for rack-to-rack or device interconnection)
- Operating Temperature Range: -40°C to +85°C (industrial-grade environmental tolerance)
- High Durability: Designed for rugged industrial applications with robust connector housings and strain relief boots.
- Low Signal Loss: Optimized for minimal insertion and return loss, ensuring stable optical performance.
- Plug-and-Play Design: Pre-terminated and factory-tested for immediate deployment without field termination.
- Cross-Compatibility: Enables interconnection between SC-based and ST-based optical devices.
- Compliance with Industry Standards: Conforms to IEC, TIA/EIA, and ISO/IEC optical fiber standards for multi-mode cabling.
- Color Coding: Typically orange jacket for multi-mode identification (62.5/125 μm OM1 standard).
- Applications: Ideal for Ethernet, Fast Ethernet, and Gigabit Ethernet optical links, media converters, switches, and routers.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model Name | FPC-SCST-MM3M |
| Connector Type | SC (Square Connector) to ST (Bayonet Connector) |
| Fiber Type | Multi-mode (MM) |
| Core/Cladding Diameter | 62.5/125 μm |
| Cable Length | 3 meters |
| Cable Diameter | Standard 2.0 mm or 3.0 mm (typical for patch cords) |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Insertion Loss (Typical) | ≤ 0.3 dB per connector |
| Return Loss (Typical) | ≥ 20 dB (multi-mode) |
| Jacket Material | PVC or LSZH (Low Smoke Zero Halogen) depending on variant |
| Color | Orange (standard for multi-mode 62.5/125 μm) |
| Polish Type | PC (Physical Contact) |
| Cable Type | Duplex (two fibers for transmit and receive) |
| Minimum Bend Radius | 30 mm (typical for 3 mm jacket) |
| Weight | Approx. 20–30 g (depending on jacket type) |

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### 4. Functionality

The FPC-SCST-MM3M functions as a fiber optic interconnect cable that transmits optical signals between two devices equipped with SC and ST connectors. It is primarily used to link network switches, media converters, transceivers, and other optical communication equipment.

Working Principle:
Optical signals generated by a transmitter (TX) are transmitted through the multi-mode fiber core and received by the receiver (RX) at the other end. The SC connector provides a push-pull locking mechanism, while the ST connector uses a bayonet-style coupling for secure attachment.

Use Cases and Applications:
- Interconnection between SC-based and ST-based optical devices.
- Data center patch panels and cross-connects.
- Industrial Ethernet networks requiring optical isolation.
- LAN/WAN backbone cabling.
- Fiber-to-the-desk (FTTD) and fiber distribution frames.
- Laboratory and test environments for optical equipment.

Compatibility:
- Compatible with all standard multi-mode optical transceivers (850 nm or 1300 nm).
- Works with Fast Ethernet (100 Mbps) and Gigabit Ethernet (1 Gbps) SFP modules such as ORing’s SFP100-MM, SFP1G-SX, and SFP1G-MLX.
- Suitable for use with ORing media converters, switches, and industrial networking devices.

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### 5. Components & Accessories

Included Components:
- 1 × Fiber Patch Cord (SC male to ST male, 3 m length)
- Factory-installed connectors with protective dust caps
- Pre-tested and certified for optical performance

Optional Accessories:
- Fiber Patch Adapters:
- FCA-SC-MM (SC/SC, 62.5/125 μm multi-mode)
- FCA-SC-SS (SC/SC, 9/125 μm single-mode)
- Alternative Patch Cord Models:
- FPC-SCSC-MM3M (SC/SC, 62.5/125 μm, 3 m)
- FPC-SCLC-MM3M (SC/LC, 62.5/125 μm, 3 m)
- FPC-LCLC-MM3M (LC/LC, 62.5/125 μm, 3 m)
- Single-mode Variants:
- FPC-SCST-SS3M (SC/ST, 9/125 μm, 3 m)

Connector Details:
- SC Connector: Push-pull locking mechanism, square body, ceramic ferrule (2.5 mm).
- ST Connector: Bayonet-style coupling, round metal body, ceramic ferrule (2.5 mm).

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### 6. Installation & Setup

Installation Requirements:
- Compatible optical ports (SC and ST female receptacles).
- Clean, dust-free environment for connector handling.
- Fiber cleaning tools (lint-free wipes, isopropyl alcohol, or fiber cleaning pens).

Mounting Options:
- Direct plug-in to optical transceivers, patch panels, or wall outlets.
- Can be routed through cable management trays or conduits.

Configuration Steps:
1. Remove protective caps from both connectors.
2. Clean connector end faces using approved fiber cleaning methods.
3. Insert the SC connector into the SC port until it clicks into place.
4. Insert the ST connector into the ST port and twist to lock securely.
5. Verify link integrity using optical power meters or network link indicators.

Best Practices:
- Avoid excessive bending or pulling of the cable.
- Maintain minimum bend radius to prevent signal loss.
- Store unused cables with dust caps in place.

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### 7. Performance & Capabilities

Optical Performance:
- Designed for multi-mode transmission over short to medium distances (up to 2 km depending on transceiver).
- Supports 850 nm and 1300 nm wavelength operation typical for OM1 fiber.
- Low insertion loss ensures minimal signal degradation.
- Stable performance across wide temperature ranges (-40°C to +85°C).

Speed and Capacity:
- Supports data rates up to 1 Gbps (Gigabit Ethernet) and backward compatible with 100 Mbps (Fast Ethernet).
- Suitable for IEEE 802.3z (Gigabit Ethernet over fiber) and IEEE 802.3u (Fast Ethernet) standards.

Efficiency and Reliability:
- Factory-terminated and tested for optical continuity and loss.
- High repeatability of connection cycles (>500 mating cycles).
- Resistant to vibration and mechanical stress common in industrial environments.

Limitations:
- Not suitable for long-distance single-mode applications (>2 km).
- Limited to multi-mode optical systems (62.5/125 μm).
- Requires proper cleaning and handling to maintain performance.

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### 8. Standards & Compliance

Industry Standards:
- IEC 61754-4: SC connector interface standard.
- IEC 61754-2: ST connector interface standard.
- TIA/EIA-568-C.3: Optical fiber cabling and component standard.
- ISO/IEC 11801: Generic cabling for customer premises.
- RoHS Compliance: Restriction of Hazardous Substances Directive compliant.
- REACH Compliance: Free from hazardous chemical substances.
- UL94V-0: Flame-retardant jacket material (for PVC variants).

Environmental Compliance:
- Operating temperature: -40°C to +85°C.
- Humidity tolerance: up to 95% non-condensing.
- Resistant to dust, vibration, and moderate mechanical stress.

Quality Assurance:
- 100% factory tested for insertion loss and return loss.
- Optical performance verified per IEC and TIA standards.
- Each cable serialized for traceability and quality control.

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically 1–3 years depending on region and distributor).
- Covers manufacturing defects and optical performance failures under normal use.

Support & Maintenance:
- Technical support available through ORing’s global service network.
- Maintenance involves periodic cleaning of connectors and inspection for physical damage.
- Replacement recommended if insertion loss exceeds specified limits or connectors show wear.

Product Updates & Variants:
- Available in multiple connector combinations (SC/SC, SC/LC, LC/LC, SC/ST).
- Offered in both multi-mode (62.5/125 μm) and single-mode (9/125 μm) versions.
- Custom lengths available upon request (1 m to 30 m typical).
- Compatible with ORing’s full range of SFP transceivers, media converters, and industrial Ethernet switches.

Packaging:
- Individually packaged in anti-static, dust-proof plastic bags.
- Includes identification label with model number, fiber type, and test results.

Manufacturer Background:
ORing Industrial Networking Corp. is a leading provider of rugged networking solutions, specializing in industrial Ethernet, wireless, and fiber optic connectivity products. The company’s accessories, including fiber patch cords, are designed for high reliability in mission-critical applications such as transportation, automation, and energy systems.

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### Summary

The FPC-SCST-MM3M Fiber Patch Cord is a robust, high-performance optical interconnect solution engineered for industrial and enterprise networking environments. Featuring SC to ST connectors, multi-mode 62.5/125 μm fiber, and a 3-meter length, it provides seamless connectivity between devices with different optical interfaces. Its wide operating temperature range (-40°C to +85°C) and rugged construction make it suitable for harsh environments, while compliance with international standards ensures interoperability and long-term reliability.

Whether used in data centers, control rooms, or field installations, the FPC-SCST-MM3M delivers consistent optical performance, low signal loss, and dependable operation—making it an essential component in any fiber-based communication infrastructure.

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