Are your optical modules compatible with Cisco, Huawei, Arista, and Juniper?

Yes. All HYTOPTODEVICE optical modules are 100% compatible with major brands including Cisco, Huawei, Arista, and Juniper switches and routers, with no configuration changes required.

Are your modules new or refurbished?

All HYTOPTODEVICE modules are brand new, original manufactured products. We do not sell refurbished or used optical modules.

Do your optical modules support DDM/DOM monitoring?

Yes. Our optical modules support Digital Diagnostic Monitoring (DDM/DOM), allowing real-time monitoring of temperature, voltage, current, TX power, and RX power.

What is your warranty policy?

HYTOPTODEVICE provides a standard warranty on all optical modules. Please contact our sales team for specific warranty terms and conditions.

Do you ship internationally from Shenzhen, China?

Yes. We ship worldwide from our facility in Shenzhen, China. International shipping is available for all orders including bulk and OEM orders.

Cisco C39 DWDM‑SFP‑4612‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE-DWDM 1546.12nm 80km 100GHz | HYTOPTODEVICE

Reliable Cisco DWDM‑SFP‑4612‑80 drop‑in replacement transceiver, 100GHz ITU‑T grid 1546.12nm single‑mode 80km reach. TEC‑stabilized DFB laser, full SFF‑8472 DDM monitoring, zero‑warning plug‑and‑play for Cisco switching and routing hardware, suited for metro DWDM aggregation and remote site backhaul.

CH	Cisco Compatible P/N	CH	Cisco Compatible P/N
CH37	DWDM‑SFP‑4772‑80	CH50	DWDM‑SFP‑3740‑80
CH38	DWDM‑SFP‑4692‑80	CH51	DWDM‑SFP‑3661‑80
CH39	DWDM‑SFP‑4612‑80	CH52	DWDM‑SFP‑3582‑80
CH40	DWDM‑SFP‑4532‑80	CH53	DWDM‑SFP‑3504‑80
CH41	DWDM‑SFP‑4453‑80	CH54	DWDM‑SFP‑3425‑80
CH42	DWDM‑SFP‑4373‑80	CH55	DWDM‑SFP‑3347‑80
CH43	DWDM‑SFP‑4294‑80	CH56	DWDM‑SFP‑3268‑80
CH44	DWDM‑SFP‑4214‑80	CH57	DWDM‑SFP‑3190‑80
CH45	DWDM‑SFP‑4135‑80	CH58	DWDM‑SFP‑3112‑80
CH46	DWDM‑SFP‑4056‑80	CH59	DWDM‑SFP‑3033‑80
CH47	DWDM‑SFP‑3977‑80	CH60	DWDM‑SFP‑2955‑80
CH48	DWDM‑SFP‑3898‑80	CH61	DWDM‑SFP‑2877‑80
CH49	DWDM‑SFP‑3819‑80	CH62

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Description

Cisco C39 DWDM‑SFP‑4612‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE‑DWDM 1546.12nm 80km Bulk Wholesale

Product Overview

HYTOPTODEVICE C39 DWDM SFP is a pin‑to‑pin compatible alternative for Cisco DWDM‑SFP‑4612‑80, following the 100GHz ITU‑T C‑band grid with central wavelength at 1546.12nm. It delivers stable error‑free transmission up to 80 km across G.652.D single‑mode fiber for dense DWDM transport networks.

Equipped with TEC‑cooled DFB laser assembly, the unit maintains strict wavelength tolerance to minimize inter‑channel crosstalk within multiplexed systems, while power consumption stays below 2W under full operating load. Pre‑loaded Cisco‑profile EEPROM eliminates unsupported‑transceiver warning alerts. Hot‑swap capability and complete SFF‑8472 DDM diagnostic support simplify daily operation and troubleshooting for metro ring topologies and distributed remote‑site backhaul connections.

Key Technical Specifications

Cisco Compatible	DWDM-SFP-4612-80	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1546.12nm	Max Distance	80KM
Connector	Duplex LC	Transmitter Type	DWDM DFB (Cooled)
Cable Type	SMF	Receiver Type	PIN
TX Power	0~+5dBm	Receiver Sensitivity	< -26.0dBm
Power Consumption	≤2W	Receiver Overload	-3.0dBm
Protocols	SFP MSA, SFF-8472	Operation Temperature	0 to 70°C (32 to 158°F)

Usage Guidelines & Best Practices

Fiber & Connector: Use OS2 single-mode fiber with LC-UPC connectors only (LC-APC strictly prohibited). Match transceiver wavelength with your DWDM ITU channel.
Optical Attenuation (Crucial): Never direct-connect! Since Tx reaches up to +5 dBm, install a 10–15 dB inline attenuator at the Rx port during lab/short-link testing to keep input power below -3 dBm and prevent receiver burnout.
Architecture: Built with a Cooled DFB (TEC) transmitter and a PIN receiver (sensitivity ~ -24 dBm, 24 dB link budget).
Thermal Management: Operating temp: 0°C to 70°C. Proper airflow is essential for TEC wavelength locking to prevent link drops.
Handling: Supports hot-swapping via bail latch. Always clean LC fiber end-faces before connection.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware

Custom Cisco‑specific EEPROM signature eliminates alarms and port lockdown. No extra configuration or firmware upgrade is required for plug‑and‑play deployment across supported Cisco enterprise and carrier‑grade hardware.

Fully Compatible Cisco Platforms:

Cisco Catalyst 3850, 9200, 9300 Series enterprise switches
Cisco ISR 4000‑series multi‑service branch routers
Cisco ASR 1000‑series carrier backbone routers
Cisco ONS optical transport platforms supporting 100GHz DWDM SFP
All Cisco devices accepting original DWDM‑SFP‑4612‑80 transceivers

2. Multi-Brand Cross Compatibility

Compliant with universal SFP MSA specifications, this C39 DWDM SFP runs error‑free on Huawei, H3C, Juniper, MikroTik and other mainstream network hardware. Custom firmware adaptation is available for complex multi‑vendor DWDM environments.

3. Free Value-Added Services

HYTOPTODEVICE offers competitive bulk pricing for resellers, system integrators and data center contractors. We provide free special compatible EEPROM reprogramming for all bulk orders.

Available options include private label printing, custom packaging and deployment consulting. All modules pass optical calibration, temperature cycling and 72-hour full-traffic burn-in. Large-volume orders enjoy tiered discounts to reduce project CAPEX.

Primary Application Scenarios

• Metro DWDM Ring: Dedicated C39 wavelength realizes single-fiber multiplexing to reduce carrier fiber investment

• Wireless Cell Backhaul: Passive 80km gigabit connectivity lowers remote site operation expenses

• Enterprise Cross-Branch: Low-cost private fiber for inter-office data & real-time video transmission

• MAN Service Aggregation: Isolated wavelengths avoid service cross-interference and boost network stability

• Industrial IoT Monitoring: Anti-interference optical design for long-distance smart city & factory data links

• Legacy Network Upgrade: Add C-band wavelengths without full infrastructure overhaul

Connectivity Solutions(Applications)

1.Direct Cabling DWDM Solution

Pair C39 module with standard DWDM multiplexers & demultiplexers to carry multi-service signals on single fiber, simplify field wiring for medium-short gigabit spans.

2. 80km Long-Haul DWDM Solution

Match EDFA optical amplifiers to offset natural fiber attenuation, stabilizing DWDM signal for intercity carrier core backhaul networks.

The Core Feature

1. Low-Power Data Center Efficient Connectivity

Ultra-low power design reduces power consumption and heat generation. The optimized single-fiber structure simplifies data center cabling, enabling cost-effective and stable gigabit Ethernet transmission.

1G Data Center Connectivity low power single-fiber Gigabit Ethernet DWDM SFP solution

2.Verified Host Interoperability for Cisco Devices

Calibrated firmware supports zero-alarm plug-and-play for Huawei, Cisco and other mainstream devices. It solves multi-brand compatibility problems and adapts to hybrid network deployment.

3.Rigorous Testing, Uncompromising Reliability

Integrating precise wavelength locking, stable 80km long-haul transmission and multi-scenario adaptability, this module forms a complete gigabit DWDM solution. It fully meets diversified networking demands for carrier metro backhaul and enterprise long-distance interconnection.

Comprehensive 1.25G 80km C17 DWDM networking solution for carrier and enterprise deployment

FAQ

Q1: Will third‑party compatible optical modules invalidate the original manufacturer warranty of my network hardware?

A: For most commercial regions, MSA‑compliant compatible transceivers will not void host‑device warranty. If your network gear enforces rigid OEM identification lock‑in, our complimentary EEPROM configuration can suppress alert notifications and help you avoid warranty‑related disputes. Contact us for location‑specific practical advice.

Q2: Are you able to reconfigure module firmware for legacy or application‑specific networking hardware?

A: Our technical team provides custom EEPROM reprogramming for specialized switches, end‑of‑life transport platforms and industry‑oriented communication equipment. Submit your exact device model details, and we can deliver application‑oriented configurations within one working day with 24‑hour technical support access.

Q3: Does this C39 DWDM SFP comply with global Multi‑Source Agreement industry requirements?

A: Every C39 transceiver strictly observes SFP MSA mechanical, electrical and optical specifications and offers full SFF‑8472 DDM diagnostic functions. Physical dimensions, pin assignments and optical performance metrics conform to universal industry standards for reliable cross‑device interoperability.

Q4: What link‑loss budget can this 1546.12nm DWDM SFP deliver?

A: This module provides 24dB total link budget derived from its 0~+5dBm transmit output and ‑24dBm receiver sensitivity, supporting full‑range 80km transmission over standard single‑mode fiber under typical loss conditions.

Q5: How is stable ITU‑T wavelength performance maintained throughout long‑duration continuous operation?

A: The built‑in TEC thermoelectric unit dynamically regulates laser chip temperature complemented by factory wavelength calibration procedures. This mechanism suppresses wavelength drift and preserves strict 100GHz channel spacing even after thousands of operating hours.

Q6: Can accumulated insertion loss introduced by DWDM multiplexers trigger total fiber‑link outages?

A: The 24dB link margin tolerates regular insertion loss brought by MUX/DEMUX assemblies. When aggregated attenuation from fiber spans, splices and WDM components exceeds the budget threshold, EDFA amplifiers can be introduced to restore signal power level.

Q7: What is the minimum permissible fiber length when no optical attenuator is fitted?

A: For this 80km‑rated DWDM transceiver, the minimum safe unattenuated fiber distance is 15 km. Any shorter physical connection must use a 10‑15 dBm fixed attenuator to prevent receiver optical saturation and irreversible port damage.

Q8: Are electrical surge‑protection circuits integrated inside the C39 optical transceiver?

A: Built‑in protective circuits shield laser and receiver chips against over‑voltage, over‑current and ESD events generated during hot‑swap insertion, improving hardware reliability within high‑density rack deployments.

Q9: Why is active thermal control essential for DWDM wavelength‑locking performance in dense‑channel systems?

A: Laser emitting wavelength shifts noticeably with temperature variation. The embedded TEC adjusts laser working temperature in real‑time to lock onto the 1546.12nm ITU‑T channel and mitigate crosstalk between tightly‑spaced DWDM wavelengths.

Q10: What negative consequences occur when the module operates beyond its rated upper temperature limit?

A: Sustained overheating causes wavelength offset, elevated bit‑error rates and erratic DDM readouts. Extended high‑temperature exposure accelerates laser component aging. For hot‑site deployments, deploy rack cooling infrastructure or select our industrial wide‑temperature variant.

Q11: Which approaches allow network administrators to retrieve live DDM diagnostic readings on managed switches?

A: Real‑time parameters such as transmit optical power, receive optical power, module temperature and supply voltage can be retrieved through native switch CLI transceiver commands or web‑based management interfaces; no additional third‑party software installation is necessary.

Q12: What packaging safeguards protect fiber connector surfaces during international shipment?

A: Each C39 transceiver is fitted with LC dust caps after completing full optical performance testing, then individually sealed within anti‑static moisture‑resistant bags together with shock‑absorbing foam material, defending fiber end‑faces against scratches, dust and oil contamination throughout transit and handling.

Why Network Engineers Choose HYTOPTODEVICE

HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.

Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
Ample stock, fast global DHL/FedEx shipping in 3–5 working days
Free pre-sales engineering support for custom EEPROM & private label firmware
Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order

“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia

Quality Certification & Compliance

At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, our processes ensure global compliance and reliability.

We adhere to rigorous standards for our SFP modules and network solutions:

ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.