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 C45 DWDM‑SFP‑4135‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE-DWDM 1541.35nm 80km 100GHz | HYTOPTODEVICE

Source Cisco C45 DWDM‑SFP‑4135‑80 compatible 1.25G 1541.35nm 80km DWDM SFP transceiver for your optical network project. Ready‑to‑ship DWDM SFP for ISP, VAR and network contracting companies. TEC‑regulated DFB laser chip, complete DDM digital diagnostics, custom EEPROM coding service, available for small lot trial and large‑volume project procurement.

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 C45 DWDM‑SFP‑4135‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE‑DWDM 1541.35nm 80km Bulk Wholesale

Product Overview

HYTOPTODEVICE C45 DWDM SFP serves as full form‑fit functional alternative to Cisco DWDM‑SFP‑4135‑80, following 100GHz ITU‑T C‑band grid at 1541.35nm wavelength, delivering error‑free 80km transmission across G.652.D single‑mode fiber. This optic is widely selected by ISP, value‑added resellers and network contractors for tender‑based metro DWDM network construction and capacity expansion.

Built around temperature‑controlled Cooled DFB laser, this module achieves tight wavelength tolerance to mitigate adjacent‑channel interference within dense wavelength multiplexing systems. Its power draw stays under 2W under full operational load. Pre‑loaded Cisco‑compatible EEPROM profile avoids unrecognizable transceiver alarms upon hot‑plug. Integrated SFF‑8472 DDM function enables real‑time optical parameter monitoring during on‑site commissioning and routine network maintenance. We support sample testing orders as well as large‑scale tender procurement to satisfy diverse project‑based buyer demands.

Key Technical Specifications

Cisco Compatible	DWDM-SFP-4135-80	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1541.35nm	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‑4135‑80 transceivers

2. Multi-Brand Cross Compatibility

Compliant with universal SFP MSA specifications, this C45 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 C45 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 C45 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: Is it safe to source third‑party compatible DWDM SFP for ISP tender projects? Will it void original network hardware warranty?

A: In most global business territories, MSA‑compliant compatible transceivers will not invalidate host‑device warranty. If your network hardware enforces strict OEM identity lock‑in for tender projects, our free‑of‑charge EEPROM adjustment can suppress system warning alerts and mitigate warranty‑related risks for your procured units. Reach out to our sales team for project‑specific procurement suggestions.

Q2: Can I get pre‑coded C45 DWDM SFP tailored for legacy or special‑spec network hardware for my VAR client project?

A: Our technical team provides custom EEPROM re‑coding service for project buyers. Submit your exact hardware specification before placing tender order, we deliver customized configuration within one business day alongside round‑the‑clock technical support for your project orders.

Q3: Do C45 DWDM SFP comply with MSA specifications when procuring large quantity for ISP network tender?

A: Each C45 unit strictly observes SFP MSA mechanical, electrical and optical specifications and supports full SFF‑8472 DDM diagnostic capability. Consistent industry‑standard performance guarantees dependable cross‑hardware interoperability for your procured project‑batch units.

Q4: How much link budget can 1541.35nm C45 DWDM SFP deliver for evaluating my DWDM tender project?

A: This transceiver provides total 24dB link budget calculated based on 0~+5dBm transmit output and ‑24dBm receiving sensitivity, supporting full‑range 80km transmission over standard single‑mode fiber, serving as key performance reference for ISP and contractor buyers to assess project link budget margin.

Q5: For multi‑year running ISP metro DWDM network, can procured C45 modules sustain stable 1541.35nm wavelength performance?

A: On‑board TEC thermoelectric component maintains laser chip working temperature, assisted by factory‑level wavelength calibration procedure. This hardware design restrains long‑term wavelength drift and preserves tight 100GHz channel spacing for your long‑term deployed procured units.

Q6: When deploying for dense DWDM tender project, will accumulated insertion loss from MUX/DEMUX hardware trigger full fiber link failure?

A: Built‑in 24dB link budget absorbs regular insertion loss introduced by DWDM multiplexer hardware. When total link attenuation exceeds budget margin for your tender project links, adding EDFA amplifiers can restore usable signal amplitude.

Q7: What is minimum unamplified fiber span for procured C45 DWDM‑SFP‑4135‑80 module, do I need to procure extra optical attenuator for short‑link application?

A: The safe minimum unattenuated fiber distance for this 80km‑rated DWDM transceiver is 15 km. For shorter fiber connections within your tender project, you have to procure 10‑15 dBm fixed optical attenuator to prevent receiver optical saturation and permanent port hardware damage.

Q8: Are surge‑protection circuits integrated inside C45 DWDM SFP for high‑density ISP rack environment?

A: Built‑in protection circuits safeguard laser and receiver chips against over‑voltage, over‑current and ESD surge events triggered during hot‑swap plug‑in, enhancing long‑term reliability for bulk‑procured units deployed inside high‑density ISP equipment racks.

Q9: Why is active thermal stabilization critical for procured C45 modules inside high‑density ISP DWDM metro networks?

A: Laser output wavelength shifts noticeably responding to temperature fluctuation. Embedded TEC dynamically adjusts laser working temperature to lock at 1541.35nm ITU‑T channel and reduce crosstalk among densely packed DWDM wavelength channels for your procured network hardware.

Q10: What potential risks appear if procured C45 modules operate above maximum rated temperature at ISP site deployment?

A: Persistent overheating will bring wavelength offset, elevated bit‑error ratio and fluctuating DDM monitoring readings. Long‑time high‑temperature operation accelerates laser component aging. For high‑temperature site tender projects, deploy rack cooling infrastructure or choose our industrial extended‑temperature variant.

Q11: After procuring C45 DWDM SFP for managed‑switch‑based DWDM tender project, how can operators access real‑time DDM diagnostic data?

A: Live measurement metrics including transmit optical power, receive optical power, module internal temperature and supply voltage can be retrieved via native switch CLI transceiver commands or web‑based management interfaces, no extra third‑party software installation required for your procured hardware.

Q12: How are bulk‑tender‑ordered C45 DWDM SFP packaged for cross‑border VAR and ISP project shipment?

A: Every procured C45 transceiver is fitted with LC dust protective caps after passing comprehensive optical performance testing, individually sealed within anti‑static moisture‑proof bags together with shock‑absorbing foam cushion, protecting fiber end faces from scratch, dust and oil contamination for international tender‑project delivery.

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.