Description
Applications
Specifications

◆ Description:

Miray's 622M-LX120-SM1550 is a high-performance small form factor pluggable (SFP) transceiver module for duplex optical data communications such as SDH STM-4/SONET OC-12 and 622Mb/s ATM ultra long reach the application. This SFP transceiver module provides 120km transmission distance over single mode fiber at a nominal wavelength of 1550nm. The transmitter section uses a 1550nm DFB laser that is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses a high-speed APD photodiode (PD) and trans-impedance preamplifier. The 622Mbps SFP module series is fully compliant with SFP Multi-Sourcing Agreement (MSA) and SFF-8472.

High-Performance 622Mb/s Optical Link for Long-Reach Networks
This sfp module is built to deliver dependable 622Mb/s data transmission for SDH STM-4, SONET OC-12, and 622Mb/s ATM links, giving network teams a practical option when stable long-distance connectivity is required. Designed with a hot-pluggable SFP form factor and LC duplex connector, it fits naturally into deployment and maintenance workflows where uptime and serviceability matter. For buyers evaluating components from optical transceiver manufacturers or sourcing parts for an ethernet switch, network switch, or poe switch environment, this transceiver offers a well-matched balance of reach, signal quality, and operational simplicity for fiber-based backbone connections.

Proven Hardware Design with Standards-Based Compatibility
The module uses a 1550nm DFB laser transmitter and APD receiver to support transmission up to 120km over 9/125 μm single-mode fiber, making it suitable for demanding campus, metro, and industrial links where longer fiber runs are common. It is compliant with the SFP MSA standard specification and SFF-8472, and it supports +3.3V single power supply operation, low EMI, excellent ESD protection, ROHS compliance, and lead-free construction. The optional Digital Diagnostic Monitor interface adds visibility for monitoring performance in service, which is valuable for procurement teams and engineers comparing offerings from industrial ethernet switch manufacturers and top network switch manufacturers who need parts that align with established platform requirements and field reliability expectations.

Practical Fit for Enterprise, Industrial, and Carrier Deployments
For system integrators, operators, and distributors supporting fiber upgrades or spare-part programs, this transceiver is a practical choice where long-reach optical connectivity must remain stable and easy to maintain. It is well suited to network switch ports in telecom rooms, industrial sites, utility infrastructure, and remote interconnects that require consistent optical performance without added complexity. As a replacement or expansion part for network switch installations, it helps keep fiber links available for critical traffic, while its compliance-focused design supports easier integration into existing platforms and procurement plans. When buyers compare solutions across transceiver categories, this model stands out as a reliable option for long-distance 622M optical communication.

Key Advantages

Stable Optical Link for Long-Distance Systems
This sfp module is built for 622Mb/s links over up to 120km on 9/125 μm single-mode fiber, which gives network teams a practical option when an ethernet switch or optical transport node must connect distant sites with consistent signal quality. The 1550nm DFB transmitter and APD receiver support stable optical performance, while the hot-pluggable LC duplex design helps reduce service interruption during replacement or maintenance.

Broad Compatibility and Practical Maintenance
Compliant with the SFP MSA standard and SFF-8472, this transceiver is well-suited for procurement teams working with optical transceiver manufacturers, top network switch manufacturers, and industrial ethernet switch manufacturers that need predictable integration across supported platforms. The +3.3V single power supply, low EMI design, excellent ESD protection, and optional DOM function support reliable operation in industrial and telecom environments, making it easier for technicians to monitor status and manage upkeep on a network switch or poe switch deployment.

Use Scenarios

Telecom and Carrier Link Extension
In telecom rooms and carrier access networks, operators often need to extend STM-4/OC-12 traffic between sites where fiber spans are long and link stability matters. This transceiver serves that role by providing 622Mb/s transmission over single-mode fiber at 1550nm, so it is well-suited for transporting SDH, SONET, and ATM signals between equipment racks, aggregation points, and remote facilities without changing the optical interface format on the host network switch or transport system.

Industrial Network Uplink and Remote Facility Interconnection
In plants, substations, and remote cabinets, engineers need an optical link that can tolerate difficult installation conditions while keeping maintenance straightforward. This sfp module supports hot-plug replacement, low EMI operation, and strong ESD protection, which makes it a practical fit for uplinks between an ethernet switch or poe switch and distant control equipment when buyers from industrial ethernet switch manufacturers and system integrators require a stable 120km connection path.

FAQ

Q1. What applications is this transceiver designed for?
This sfp module is designed for duplex optical data communications, including SDH STM-4, SONET OC-12, and 622Mb/s ATM ultra-long-reach links. It supports 622Mb/s data rates and is well-suited for network switch and ethernet switch deployments requiring 120km reach over single-mode fiber.

Q2. What fiber and connector type do I need?
The module uses an LC duplex connector and operates over 9/125 μm single-mode fiber. We specify this interface so system integrators and plant engineers can match it to existing optical ports without altering the physical layer design.

Q3. Does this transceiver support monitoring and diagnostics?
Yes, optional Digital Diagnostic Monitor support is available. That allows operators to review key module parameters during deployment and maintenance. Our transceiver is also built with low EMI and excellent ESD protection for stable use in controlled network environments.

Q4. What optical technology does the module use?
The transmitter uses a 1550nm DFB laser, and the receiver uses an APD photodiode with a trans-impedance preamplifier. This optical design supports the stated 120km reach on single-mode fiber, making it suitable for long-distance links specified by optical transceiver manufacturers.

Q5. Is this module compliant with common industry standards?
The unit is compliant with SFP MSA specifications and SFF-8472, and it is ROHS compliant and lead-free. It also uses a +3.3V single power supply, which helps procurement teams and industrial ethernet switch manufacturers align it with standard system requirements.

Applications

SONET OC-3/SDH STM-1
Fast Ethernet
Other Optical Links

Specifications

Product Series	Fiber Optical Transceiver	Optcore Part Number	622M-LX120-SM1550
Form Factor	SFP (Mini-GBIC)	Data Rate	STM-4/OC-3 622Mb/s
Wavelength	1550 nm	Fiber Type	SMF
Max Distance	120 km	Optical Components	DFB/APD
Transmitter Power	0～5 dBm	Extinction ratio	> 9 dB
Receiver Sensitivity	< -32 dBm	Receiver Overload	> -8 dBm
Connector	LC Duplex	Digital Diagnostic Monitoring	Yes
Environment	Operating: 0°C to 70°C Storage: -40°C to 85°C	Weight	0.03 kg
Application	SONET OC-12 LR-2 SDH STM-4 L4.2 622Mb/s ATM Other optical transmission systems	Compliance	IEC/EN 61000-4-2,IEC-60825 FDA 21CFR 1040.10 and 1040.11 RoHS

622M Cisco Compatible OC-12/STM-4 LR-2 1550nm 120km DOM LC SMF Module SFP Transceiver

Description

Applications

Specifications

Applications

Specifications

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