Cisco C56 DWDM‑SFP‑3268‑80 Compatible 1.25G DWDM Transceiver Module | 1000BASE-DWDM 1532.68nm 80km 100GHz | HYTOPTODEVICE

HYTOPTODEVICE Cisco C56 DWDM-SFP-3268-80 compatible 1.25G 1000BASE-DWDM SFP transceiver, 1532.68nm 100GHz ITU-T grid, 80km long-haul transmission over G.652.D single-mode fiber. TEC wavelength locking, plug-and-play hot-swap, real-time DDM monitoring and custom EEPROM, ideal for metro DWDM network upgrade and telecom bulk projects.

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 C56 DWDM‑SFP‑3268‑80 Compatible 1.25G DWDM Transceiver Module | 1000BASE‑DWDM 1532.68nm 80km Bulk Wholesale

Product Overview

HYTOPTODEVICE C56 DWDM SFP serves as a seamless plug-and-play replacement for Cisco DWDM‑SFP‑3268‑80. It delivers stable 1.25G 1000BASE-DWDM transmission at 1532.68nm on the 100GHz ITU-T grid, supporting error-free 80km transmission over standard G.652.D single-mode fiber. It is a cost-efficient solution for metro DWDM ring networking, telecom backhaul and long-distance enterprise fiber interconnection.

Equipped with a TEC-cooled DFB laser, this C56 module ensures precise wavelength locking and minimal crosstalk for dense DWDM multiplexing. Featuring ultra-low power consumption below 2W, it supports reliable 24/7 continuous operation. Preloaded Cisco-adaptive EEPROM enables alarm-free hot-swap deployment, while built-in SFF-8472 DDM supports real-time operational monitoring. We provide sample testing and large-volume bulk order services for diverse optical network projects.

Key Technical Specifications

Cisco Compatible	DWDM-SFP-3268-80	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1532.68nm	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‑3268‑80 transceivers

2. Multi-Brand Cross Compatibility

Compliant with universal SFP MSA specifications, this C56 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 C56 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

Work with standard DWDM MUX/DEMUX to aggregate multiple service traffic over single fiber pair, ideal for medium‑reach gigabit DWDM tender projects.

2. 80km Long-Haul DWDM Solution

Pair with EDFA optical amplifiers to compensate fiber signal attenuation, stabilize DWDM signal for carrier‑grade inter‑city backbone links..

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: Can I update module firmware to match new network hardware after equipment upgrades?

A: Yes. HYTOPTODEVICE offers free lifelong EEPROM reprogramming for all C56 DWDM modules. We can update module identification data to adapt to your new devices, improving equipment reuse rate.

Q2: How to choose between UPC and APC connectors for my DWDM project?

A: This C56 module adopts standard UPC LC connector, ideal for conventional metro DWDM multiplexing. APC connectors fit PON scenarios requiring high return loss. Consult our team before switching types to avoid link instability.

Q3: Does this DWDM module require pre-debugging or parameter setup before use?

A: No pre-configuration or parameter tuning is required. All C56 modules are pre-calibrated and Cisco-compatible out of the box. Hot-swap installation enables immediate stable network operation.

Q4: What are the reliable ways to test link quality after module installation?

A: You can check real-time DDM optical power data via device CLI or web GUI. Long-term stability observation and BER testing are also available. Our team provides professional link performance evaluation support.

Q5: Will unused high transmit power cause permanent damage to the transceiver?

A: No. Built-in laser power protection prevents transmitter damage when fiber is disconnected. Always cover idle ports with dust caps to avoid contamination and laser exposure risks.

Q6: Can C56 modules resist static, dust and humidity in standard telecom rooms?

A: Yes. All C56 modules feature industrial-grade dustproof, moisture-proof and ESD protection. Strict environmental testing ensures stable performance in high-density telecom equipment environments.

Q7: Can DDM monitoring detect hidden faults and send early warnings before link failure?

A: Yes. The real-time DDM system monitors optical power, temperature and voltage continuously. It triggers early warnings for abnormal data to support preventive maintenance and avoid sudden outages.

Q8: How accurate and credible are the built-in DDM optical power readings?

A: Every C56 module is factory-calibrated with professional optical instruments. DDM data delivers high industry accuracy, fully reliable for daily network monitoring and link status judgment.

Q9: Do I need paid licenses or dedicated software to access DDM diagnostic functions?

A: No extra licenses or professional software are needed. Complying with SFF-8472 standards, DDM data is freely accessible through native device CLI or web management interfaces.

Q10: What after-sales support is available for DOA or transit-damaged modules?

A: We conduct comprehensive pre-shipment testing to reduce defective products. For DOA or damaged units, provide relevant photos and test records. We offer fast free replacement and full technical support to guarantee project progress.

Q11: What official technical documents come with module orders?

A: Each order includes official datasheets, parameter specs and qualification certificates. Bulk project customers can obtain factory test reports and compliance files for bidding and acceptance.

Q12: Can your engineering team provide free link budget analysis before purchase?

A: Yes. Our professional optical engineers provide free pre-sales link budget calculation. Offer your fiber length, loss parameters and device layout, and we will deliver accurate data and optimized deployment suggestions.

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.