Cisco QSFP-100G-CWDM4-S= Transceiver Module
The Cisco QSFP‑100G‑CWDM4‑S is a 100GBASE‑CWDM4 QSFP28 optical transceiver designed for high‑speed 100 GbE links over single‑mode fiber up to ~2 km. It uses duplex LC connectors and supports DDM diagnostics for reliable performance and network monitoring. This hot‑pluggable module delivers efficient, scalable connectivity for data centers, enterprise cores, and campus backbones.
Specification Table for the Cisco QSFP‑100G‑CWDM4‑S= Transceiver Module:
| Specification | Details |
|---|
| Manufacturer | Cisco |
| Part Number | QSFP‑100G‑CWDM4‑S= |
| Form Factor | QSFP28 |
| Ethernet Standard | 100GBASE‑CWDM4 |
| Maximum Data Rate | 100 Gbps (103.125 Gbps aggregate) |
| Fiber Type | Single‑Mode Fiber (SMF) |
| Maximum Distance | Up to 2 km |
| Connector Type | Duplex LC |
| Wavelength | 1271 nm, 1291 nm, 1311 nm, 1331 nm (CWDM) |
| Number of Lanes | 4 × 25 Gbps |
| Modulation Format | NRZ |
| Transmitter Type | CWDM DML (Directly Modulated Laser) |
| Receiver Type | PIN photodiode |
| Transmit Power | ~0.5 dBm per lane |
| Receiver Sensitivity | Typically around ‑11.6 dBm |
| Power Consumption | ≤ 4.5 W |
| Digital Diagnostics | Supported (DDM / DOM) |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | ‑40°C to +85°C |
| Compliance Standards | IEEE 802.3bm 100GBASE‑CWDM4, QSFP28 MSA |
| Fiber Standard | ITU‑T G.652 SMF |
| Hot‑Swappable | Yes |
Cisco QSFP-100G-CWDM4-S Transceiver Module – Full Product Guide
The Cisco QSFP‑100G‑CWDM4‑S Transceiver Module is a high-performance 100‑Gigabit QSFP28 optical transceiver designed for medium‑range data transmission over single‑mode fiber (SMF). It uses CWDM (Coarse Wavelength Division Multiplexing) technology to transmit 100 Gbps data over four wavelengths (1271 nm–1331 nm) simultaneously.
This module supports 100GBASE-CWDM4 Ethernet and provides a transmission distance of up to 2 km on single-mode fiber. It is hot-pluggable, supports Digital Diagnostic Monitoring (DDM), and ensures high-density, reliable connectivity for enterprise networks, data centers, and metro networks.
The QSFP‑100G‑CWDM4‑S is ideal for switch-to-switch, router interconnects, and aggregation links, offering a cost-effective solution for medium-range 100G Ethernet networks.
Key Features
- 100Gbps data rate supporting 100G Ethernet connectivity
- QSFP28 form factor for high-density deployments
- CWDM technology using four wavelengths for multiplexed data transmission
- Single-mode fiber support with duplex LC connectors
- Up to 2 km transmission distance on SMF
- Hot-swappable design for easy installation
- Digital Diagnostic Monitoring (DDM/DOM) support
- Low power consumption (~4W)
- Compliant with IEEE 802.3bm 100GBASE-CWDM4 standard
How to Install the Module
1. Check Device Compatibility
- Ensure the port on your switch or router supports QSFP28 100G CWDM4 modules.
2. Remove Protective Caps
- Remove the dust caps from both the transceiver and the LC fiber connector.
3. Insert the Transceiver
- Slide the module into the QSFP28 port until it clicks and locks.
4. Connect the Fiber Cable
- Connect the duplex LC single-mode fiber cable to the module.
5. Verify Detection
- Use the device CLI to verify the transceiver is recognized: show interface transceiver details
6. Check Link Status
- Confirm the interface status: show interface status
If the link is up/up, the module is installed successfully.
Compatibility
The Cisco QSFP‑100G‑CWDM4‑S is compatible with a wide range of Cisco devices that have QSFP28 ports:
- Cisco Catalyst 9300 / 9400 / 9500 / 9600 Series Switches
- Cisco Nexus 3000 / 9000 Series Switches
- Cisco ASR and aggregation routers supporting QSFP28 ports
It supports 100GBASE-CWDM4, enabling interoperability with other compliant Cisco and third-party devices.
Applications
- Data center interconnect (DCI)
- Enterprise network backbone
- Metro network links
- Switch-to-switch or router interconnects
- High-bandwidth aggregation connections
- CWDM4 optics are cost-effective for medium-range (≤2 km) 100G Ethernet deployments.
Frequently Asked Questions (FAQ)
1. What is Cisco QSFP-100G-CWDM4-S?
It is a 100GBASE-CWDM4 optical transceiver designed for medium-range 100 Gbps Ethernet over single-mode fiber.
2. What is the maximum distance supported?
The module supports up to 2 km over single-mode fiber.
3. What type of fiber connector does it use?
It uses duplex LC connectors for single-mode fiber.
4. What wavelength does it operate on?
It uses four CWDM wavelengths ranging from 1271 nm to 1331 nm.
5. Is it hot-swappable?
Yes, the module is hot-pluggable, allowing installation or removal without powering down the device.
6. What is the typical power consumption?
Approximately 4 W, depending on device and operating conditions.
7. Can it work with non-Cisco devices?
Yes, as long as the device supports QSFP28 100GBASE-CWDM4 standard, though compatibility may vary by vendor.
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What is the price of Cisco QSFP-100G-CWDM4-S= Transceiver Module in Bangladesh?
The lowest price of Cisco QSFP-100G-CWDM4-S= Transceiver Module in Bangladesh is 65,000৳. You can buy the Cisco QSFP-100G-CWDM4-S= at best price from our website or visit our Office.
For the most accurate pricing, stock availability, and warranty details, we recommend contacting us before placing your order.
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