MTRJ to LC Multimode OM1 Ultra Fiber Cable | High-Performance Connectivity
The iFiber Optix MTRJ to LC Multimode OM1 Ultra Fiber Cable delivers seamless connectivity between compact MTRJ duplex interfaces and modern high-density LC connectors — combining legacy MTRJ infrastructure with current LC-equipped networking equipment in a single, direct-wired assembly over OM1 multimode fiber.
With support for 1 Gbps Ethernet over distances up to 300 meters, this cable is ideal for LANs, data centers, telecom systems, and enterprise networks where MTRJ and LC connector types must interconnect without adapter couplers or extra patch cord runs.
MTRJ to LC Multimode OM1 Ultra Fiber Cable
The MTRJ to LC OM1 cable combines two widely used connector types with Corning 62.5/125µm multimode optical fiber — offering reliable performance for short-range communication. The MTRJ connector on End A provides a compact duplex interface that houses both transmit and receive fibers in a single ferrule, commonly found in legacy networking equipment and MTRJ-equipped switches, while the LC connector on End B delivers a high-density push-pull latch connection ideal for modern data center switches, patch panels, and transceivers.
This direct cross-cable eliminates the MTRJ-to-LC adapter coupler and second patch cord that would otherwise be required — reducing connection points, insertion loss, and cable management complexity in mixed-connector environments.
Performance Specifications
All iFiber Optix MTRJ-LC OM1 assemblies are manufactured and tested to meet or exceed the following optical and mechanical performance specifications.
| Insertion Loss | 0.3 dB |
| Typical Insertion Loss | 0.2 dB |
| Return Loss | ≥ 20 dB |
| Mating Durability | <0.2 dB change (500 cycles) |
| Temperature Range | -40°C to +85°C |
| End A Connector | MTRJ (Duplex Ferrule) |
| End B Connector | LC/PC (Push-Pull Latch) |
| Fiber Core / Cladding | 62.5 / 125µm |
| Part Number | i1611-J-XX-2J |
| SPC GR-326 Protrusion | +50 / -100 nm |
Key Features
- Direct MTRJ-to-LC Cross-Connection Factory-terminated with MTRJ on End A and LC on End B — eliminating the adapter coupler and second patch cord that would otherwise be required to bridge these two connector types, reducing insertion loss and removing an extra mechanical joint from the channel.
- Corning 62.5/125µm OM1 Fiber Built on Corning optical fiber — the global standard for long-term transmission reliability. The 62.5µm core supports 1 Gbps Ethernet over distances up to 300 meters, making this cable ideal for existing OM1 plant in LANs, data centers, and campus environments.
- Legacy & Modern Interface Compatibility MTRJ connectors are installed in a large base of legacy networking equipment worldwide. The MTRJ-LC configuration bridges those MTRJ-equipped systems directly to modern LC-port switches, media converters, and patch panels — extending infrastructure life without requiring port-by-port hardware replacement.
- Low Insertion Loss Both MTRJ and LC connectors deliver ≤ 0.3 dB insertion loss (0.2 dB typical) — ensuring strong, stable signal transmission with minimal degradation across the full duplex OM1 channel under all rated operating conditions.
- Compact Duplex Design The MTRJ connector's single-ferrule duplex form factor on End A houses both transmit and receive fibers in a space-saving footprint — ideal for high-density legacy equipment panels where minimizing connector bulk is a priority.
- Durable Long-Term Performance Rated for 500+ mating cycles with less than 0.2 dB change in insertion loss across an operating range of -40°C to +85°C — engineered for reliable performance in demanding network environments with frequent patching and varying environmental conditions.
Ideal Applications
MTRJ to LC OM1 cables are deployed wherever legacy MTRJ-equipped switches and equipment must connect to modern LC-terminated patch panels and transceivers across a range of short-distance networking environments.
Legacy Infrastructure Upgrades
Connects MTRJ-terminated legacy switches and equipment directly to modern LC-port patch panels and transceivers — deferring full equipment replacement while delivering immediate connectivity improvements.
Data Centers
Bridges MTRJ-equipped legacy infrastructure to high-density LC switch ports and patch panels in modern data centers — enabling phased migrations without taking legacy systems offline during transitions.
Local Area Networks
Connects computers, switches, and routers within office LANs and campus environments where LC-equipped access switches must interface with existing MTRJ-terminated horizontal cabling runs.
Telecom Networks
Used in telecom rooms and networking closets to connect MTRJ-terminated legacy feeder cables to LC-equipped multiplexers, OLTs, and distribution equipment during phased infrastructure migrations.
Enterprise Networks
Provides robust connectivity across enterprise departments where MTRJ-equipped workgroup switches connect to new LC-port core switches — supporting seamless data flow without full infrastructure replacement.
Government & Regulated Facilities
RoHS-compliant construction and GSA contract availability make MTRJ-LC OM1 cables a direct-procurement option for government facilities managing mixed MTRJ/LC infrastructure across aging campus and building networks.
How to Configure Your MTRJ-LC OM1 Assembly
Four decisions define your MTRJ-LC OM1 assembly — use this guide to arrive at the right configuration for your deployment.
Confirm Distance & Bandwidth
OM1 supports 1 Gbps up to 300 meters. If your runs exceed this distance or require 10G speeds, consider OM3 or OM4 multimode. For runs over 2km, OS2 singlemode is the appropriate solution. Confirm your transceiver specifications before finalizing fiber type — mismatched fiber grades cause link failures that are difficult to diagnose in the field.
Verify Connector Orientation
Confirm which end of your run uses MTRJ and which uses LC before ordering. MTRJ is End A (duplex single-ferrule); LC is End B (compact push-pull latch). If both ends use the same connector type, specify MTRJ-MTRJ or LC-LC instead. For existing runs with adapter couplers, a direct cross-cable removes the coupler and reduces insertion loss by ~0.3–0.5 dB per removed joint.
Select Length & Jacket
Available in standard lengths from 0.5m to 15m and custom lengths for special routing. PVC (OFNR) for standard equipment rooms and data center environments, plenum (OFNP) for air-handling spaces and above-ceiling runs, LSZH for facilities with halogen restrictions or European compliance requirements.
Plan for Future Expansion
When planning network growth, consider whether a phased migration toward a fully LC environment is on the roadmap. MTRJ-LC cross-cables are an excellent interim solution — they extend the life of existing MTRJ infrastructure while LC ports on new equipment are fully utilized, reducing the need for immediate capital expenditure on infrastructure replacement.
Why Choose iFiber Optix?
- Quality Assurance Every MTRJ-LC OM1 assembly is manufactured to meet industry performance standards and tested before shipment — ensuring consistent insertion loss, return loss, and mechanical performance across every cable we produce.
- GSA Contract Holder iFiber Optix holds an active GSA contract, making our fiber assemblies directly available to federal, state, and local government agencies without separate procurement processing.
- Custom Configurations Available Custom cable lengths, jacket types (PVC, plenum, LSZH), and bulk quantities available — manufactured to your exact project specifications for seamless integration into mixed MTRJ/LC OM1 infrastructure.
- TAA & BABA Compliant Options Trade Agreement Act and Buy American Act compliant configurations available for government and regulated procurement — contact us to confirm compliance for your specific project requirements.
Request Information
Ready to spec MTRJ-LC OM1 cables for your next deployment? Our team can help with custom lengths, jacket selection, bulk pricing, and GSA procurement.