Comprehensive Product Summary – ORing RMC-121FB-SS-SC Card Type Media Converter

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### 1. Product Overview

Product Name: Card Type Media Converter
Model: RMC-121FB-SS-SC
Series: RMC-121FB Series (compatible with RMC-1000 chassis)
Article Number: RMC-121FB-SS-SC
Manufacturer: ORing Industrial Networking Corp.
Product Type: Industrial-grade Ethernet-to-Fiber Media Converter (Card Type)
Version: 1.0

The ORing RMC-121FB-SS-SC is a compact, card-type industrial media converter designed to provide seamless conversion between copper-based Ethernet (10/100Base-TX) and fiber-optic (100Base-FX) networks. It is engineered for integration into the RMC-1000 rack-mount chassis, which supports up to 18 converter modules for high-density network applications. The RMC-121FB-SS-SC is optimized for industrial environments requiring reliable, redundant, and scalable Ethernet-to-fiber connectivity.

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### 2. Key Features

- Dual 10/100Base-TX to Single 100Base-FX Conversion:
Converts two RJ-45 Ethernet ports (10/100 Mbps) to one fiber-optic port (100 Mbps FX, single-mode, SC connector).

- Hot-Swappable Card Design:
Enables easy insertion and removal from the RMC-1000 chassis without system downtime, supporting continuous operation and simplified maintenance.

- Industrial Temperature Range:
Operates reliably in environments from -10°C to +60°C (14°F to 140°F), suitable for industrial and field applications.

- Compact and Lightweight:
Card dimensions of 21.8 × 73.1 × 126 mm and weight of approximately 0.145 kg, allowing high-density installation within rack systems.

- Low Power Consumption:
Typical power usage of ~2.2 W, ensuring energy-efficient operation.

- High Reliability and Redundancy:
When used with the RMC-1000 chassis, benefits from dual power supply redundancy, minimizing downtime due to power failure.

- Flexible Fiber Options:
Supports single-mode fiber with SC connector, enabling long-distance data transmission over optical fiber.

- Auto-Negotiation and Auto-MDI/MDI-X:
Automatically detects link speed and cable type, simplifying network configuration and reducing installation complexity.

- Industrial-Grade Design:
Built for durability and stability under vibration, shock, and temperature variations typical of industrial environments.

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### 3. Technical Specifications

Model: RMC-121FB-SS-SC
Type: Card-type Ethernet-to-Fiber Media Converter

Interfaces:
- Copper Ports: 2 × 10/100Base-TX (RJ-45, auto-negotiation, auto-MDI/MDI-X)
- Fiber Port: 1 × 100Base-FX (Single-Mode, SC connector)

Performance:
- Data Rate: 10/100 Mbps (TX), 100 Mbps (FX)
- Transmission Distance (Fiber): Dependent on fiber type and optical budget (typical for single-mode SC up to 20 km or more)
- Power Consumption: ~2.2 W

Physical Characteristics:
- Dimensions: 21.8 mm (H) × 73.1 mm (W) × 126 mm (D)
- Weight: ~0.145 kg
- Form Factor: Card type (for RMC-1000 chassis slot)
- Material: Industrial-grade metal enclosure for EMI shielding and heat dissipation

Environmental Conditions:
- Operating Temperature: -10°C to +60°C (14°F to 140°F)
- Storage Temperature: -40°C to +85°C (-40°F to 185°F)
- Operating Humidity: 5% to 95% non-condensing

Power Supply:
- Supplied via RMC-1000 chassis backplane
- Redundant dual power input supported by chassis (100–240 VAC)

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### 4. Functionality

The RMC-121FB-SS-SC functions as a media conversion module that bridges Ethernet copper networks with fiber-optic infrastructure. It converts electrical Ethernet signals from two 10/100Base-TX ports into optical signals transmitted through a single 100Base-FX fiber port. This conversion allows network segments to extend over long distances while maintaining high data integrity and immunity to electromagnetic interference.

Use Cases and Applications:
- Industrial automation and control systems
- Transportation and traffic monitoring networks
- Power and utility communication systems
- Building automation and security systems
- Factory floor Ethernet-to-fiber extensions
- Data center and enterprise network backbones

Compatibility:
- Fully compatible with RMC-1000 rack-mount chassis, which accommodates up to 18 converter cards.
- Supports standard Ethernet protocols (IEEE 802.3, 802.3u).
- Works with both single-mode fiber networks and standard twisted-pair Ethernet cabling.

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### 5. Components & Accessories

Included Items (per module):
- 1 × RMC-121FB-SS-SC media converter card
- Quick Installation Guide (QIG)
- Mounting screws (for chassis slot fixation)

Optional Accessories (via RMC-1000 chassis):
- Rack-mount kit
- Power supply modules (dual 100–240 VAC inputs)
- Additional converter cards (RMC-111PB, RMC-111FB, RMC-121FB series)

Connectors:
- Copper: RJ-45 connectors for 10/100Base-TX
- Fiber: SC connector for 100Base-FX single-mode fiber

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### 6. Installation & Setup

Installation Requirements:
- Must be installed into an RMC-1000 chassis slot.
- Requires compatible power supply via chassis backplane.
- Ensure proper grounding and adherence to industrial installation standards.

Mounting Options:
- Rack-mounted via RMC-1000 chassis (19-inch rack standard).
- Hot-swappable design allows insertion/removal without powering down the chassis.

Configuration:
- Plug-and-play operation with auto-negotiation for Ethernet speed and duplex mode.
- Auto-MDI/MDI-X eliminates the need for crossover cables.
- No software configuration required for basic operation.

Setup Steps:
1. Power off or ensure redundant power is active on the RMC-1000 chassis.
2. Insert the RMC-121FB-SS-SC card into an available slot.
3. Secure the card using the provided screws.
4. Connect Ethernet cables to the RJ-45 ports.
5. Connect the fiber cable to the SC port.
6. Power on the chassis or verify power continuity.
7. Check link/activity LEDs for operational status.

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### 7. Performance & Capabilities

Speed and Throughput:
- Supports full-duplex 100 Mbps fiber transmission.
- Auto-negotiates 10/100 Mbps on copper interfaces.
- Provides low-latency, high-reliability data transfer suitable for real-time industrial applications.

Capacity:
- Each card handles two Ethernet channels and one fiber channel.
- When installed in an RMC-1000 chassis, up to 18 cards can operate simultaneously, supporting up to 36 Ethernet ports and 18 fiber links.

Efficiency:
- Low power consumption (~2.2 W per card) enables dense deployment without excessive heat generation.
- Passive cooling through metal enclosure ensures stable operation.

Limitations:
- Designed for 100 Mbps fiber (not Gigabit).
- Requires RMC-1000 chassis for operation (not standalone).
- Fiber distance limited by optical budget and fiber type (typical single-mode up to 20 km).

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### 8. Standards & Compliance

Regulatory Compliance:
- EMI: FCC Part 15, CISPR (EN55022) Class A
- EMS: EN61000-4-2 (ESD), EN61000-4-3 (RS), EN61000-4-4 (EFT), EN61000-4-5 (Surge), EN61000-4-6 (CS), EN61000-4-8, EN61000-4-11
- Shock: IEC60068-2-27
- Vibration: IEC60068-2-6
- Free Fall: IEC60068-2-32

Industry Standards:
- IEEE 802.3 (10Base-T Ethernet)
- IEEE 802.3u (100Base-TX / 100Base-FX Fast Ethernet)
- Complies with industrial networking and EMC standards for harsh environments.

Environmental Compliance:
- Designed for non-condensing humidity up to 95%.
- Operates within industrial temperature ranges.
- Manufactured using RoHS-compliant materials (where applicable).

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### 9. Additional Information

Warranty:
- Standard 2-year limited warranty from ORing Industrial Networking Corp.
- Covers manufacturing defects and hardware failures under normal operating conditions.

Support & Maintenance:
- Technical support available via ORing’s global service network.
- Firmware and documentation updates accessible through the official website.
- Maintenance involves periodic inspection of fiber and copper connections, ensuring clean optical interfaces and secure cabling.

Manufacturer Contact Information:
- Company: ORing Industrial Networking Corp.
- Telephone: +886-2-2218-1066
- Fax: +886-2-2218-1014
- Email: support@oring-networking.com
- Website: [www.oring-networking.com](http://www.oring-networking.com)

Documentation Reference:
- Quick Installation Guide: RMC-1000 Series (Document No. 1907-2-29-RMC1000-0)
- Printed on recycled paper, Version 1.0

Product Lifecycle & Updates:
- Designed for long-term industrial deployment.
- Backward compatible with existing RMC-111 and RMC-121 series modules.
- Periodic firmware and hardware revisions ensure ongoing compliance with evolving industrial standards.

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### Summary

The ORing RMC-121FB-SS-SC is a robust, industrial-grade card-type media converter engineered for high-density Ethernet-to-fiber conversion within the RMC-1000 rack-mount chassis. It provides dual 10/100Base-TX copper interfaces and a single 100Base-FX single-mode SC fiber interface, enabling reliable, long-distance data transmission in demanding environments. With features such as hot-swappability, low power consumption, and wide operating temperature range, it is ideally suited for mission-critical industrial networking applications.

Its compliance with international EMC, shock, and vibration standards ensures dependable performance in harsh conditions, while its modular design supports scalable network expansion. Combined with ORing’s dual-redundant power chassis and comprehensive support, the RMC-121FB-SS-SC delivers a cost-effective, high-performance solution for industrial Ethernet-to-fiber integration.