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 C35 DWDM‑SFP‑4932‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE-DWDM 1549.32nm 80km 100GHz | HYTOPTODEVICE

Cost-saving Cisco DWDM‑SFP‑4932‑80 replacement SFP, 100GHz ITU-T 1549.32nm single-mode 80km, TEC DFB laser, full DDM DOM diagnostics, zero-alarm plug-and-play for Cisco Catalyst switches, ideal telecom metro DWDM & cell tower backhaul fiber links.

CH	P/N	CH	P/N
C17	DWDM‑SFP‑6386‑80	C27	DWDM‑SFP‑5575‑80
C18	DWDM‑SFP‑6305‑80	C28	DWDM‑SFP‑5494‑80
C19	DWDM‑SFP‑6223‑80	C29	DWDM‑SFP‑5413‑80
C20	DWDM‑SFP‑6142‑80	C30	DWDM‑SFP‑5333‑80
C21	DWDM‑SFP‑6061‑80	C31	DWDM‑SFP‑5252‑80
C22	DWDM‑SFP‑5979‑80	C32	DWDM‑SFP‑5172‑80
C23	DWDM‑SFP‑5898‑80	C33	DWDM‑SFP‑5092‑80
C24	DWDM‑SFP‑5817‑80	C34	DWDM‑SFP‑5012‑80
C25	DWDM‑SFP‑5736‑80	C35	DWDM‑SFP‑4932‑80
C26	DWDM‑SFP‑5655‑80	C36	DWDM‑SFP‑4851‑80

GET A QUOTE

Description

Cisco C35 DWDM‑SFP‑4932‑80 Compatible 1.25G DWDM SFP Transceiver Module | 1000BASE‑DWDM 1549.32nm 80km Bulk Wholesale

Product Overview

HYTOPTODEVICE C35 DWDM SFP is full pin-to-pin drop-in replacement for Cisco DWDM‑SFP‑4932‑80, built on standard 100GHz ITU-T C-band grid at 1549.32nm, delivering stable error-free 80km transmission over G.652.D single-mode fiber. Integrated TEC cooled DFB laser cuts channel crosstalk, power under 2W. Preloaded Cisco EEPROM eliminates unsupported transceiver alerts, hot-swap & SFF-8472 DDM for metro rings and remote cell backhaul.

Key Technical Specifications

Cisco Compatible	DWDM-SFP-4932-80	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1549.32nm	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‑4932‑80 transceivers

2. Multi-Brand Cross Compatibility

Compliant with universal SFP MSA specifications, this C35 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 C35 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 C35 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 using compatible transceivers void my host equipment’s warranty?

A: MSA-compliant compatible transceivers do not void equipment warranty under most regional trade regulations. If your vendor enforces OEM lock, our free custom EEPROM coding can remove recognition prompts to avoid maintenance disputes. Contact us for region-specific guidance.

Q2: Do you support custom coding for niche or specialized equipment?

A: We offer full EEPROM custom coding service for niche switches, industrial transport and legacy specialized hardware. Our engineering team delivers targeted technical solutions within one working day, and you can reach us 24/7 for support.

Q3: Are your products fully compliant with Multi-Source Agreements (MSA)?

A: All C35 DWDM SFP strictly follow SFP MSA mechanical, electrical and optical specs, together with full SFF-8472 DDM support. Form factor, pinout and signal performance fully meet official MSA standards.

Q4: What is the maximum optical link budget supported by this model?

A: This C35 DWDM module provides 24dB total link budget, calculated from 0~+5dBm transmit power and -24dBm receiver sensitivity, supporting up to 80km standard single-mode fiber under nominal loss conditions.

Q5: How do WDM wavelengths stay accurate over extended usage?

A: Built-in TEC thermoelectric cooling continuously stabilizes laser chip temperature with factory precise calibration, suppressing wavelength drift and maintaining strict 100GHz ITU-T grid accuracy for long-term continuous operation.

Q6: Will insertion loss from DWDM/CWDM MUX/DEMUX cause link failure?

A: Normal multiplexer insertion loss will not trigger link failure thanks to the 24dB link margin. If cumulative attenuation exceeds budget, install EDFA amplifiers to compensate signal loss.

Q7: What is the minimum link distance required without using an attenuator?

A: The minimum safe unattenuated fiber distance for this 80km DWDM module is 15km. Shorter fiber runs require a 10–15dBm fixed attenuator to prevent receiver overload and permanent hardware damage.

Q8: Does the transceiver include built-in overcurrent or overvoltage protection?

A: Yes, integrated internal protection circuits resist overvoltage, overcurrent and ESD surges during hot swap, fully protecting laser and receiver chips from accidental electrical damage.

Q9: How does thermal management affect wavelength locking in DWDM modules?

A: Laser wavelength shifts sharply with temperature fluctuations. The embedded TEC dynamically regulates laser temperature to lock the 1549.32nm channel and eliminate adjacent channel crosstalk.

Q10: What happens if a transceiver exceeds its maximum operating temperature?

A: Excess heat causes wavelength drift, higher bit error rate and abnormal DDM readings. Long-term overheating shortens laser lifespan; deploy rack cooling or select industrial wide-temperature modules for high-temperature environments.

Q11: How do I access DDM parameters on my network switch?

A: View real-time DDM metrics via standard switch CLI transceiver commands or web GUI diagnostic tabs. Tx power, Rx power, temperature and voltage data are exposed following SFF-8472 without extra software.

Q12: How do you prevent end-face contamination during shipping?

A: Each C35 module is fitted LC dust caps after optical inspection, individually sealed in anti-static moisture-proof bags with shock foam packaging to avoid scratches, dust and oil contamination of fiber end faces in transit.

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.