The Cisco CPAK-100G-LR4 is a high-performance, hot-swappable 100 Gigabit Ethernet (100GbE) transceiver module delivering 100Gbps connectivity up to 10km over standard G.652 single-mode fiber (SMF). Compliant with IEEE 802.3ba, it uses 4-lane LAN-WDM technology for reliable long-reach optical links in data center interconnect (DCI), campus core, and service provider edge deploymentsCisco.
The Cisco CPAK-100G-LR4 is a key component of Cisco’s CPAK (Cisco Packet-Optical Platform) transceiver family, engineered to address the exponential growth in bandwidth demand across modern data centers and carrier-grade networks. This module provides a robust, standards-compliant solution for establishing 100Gbps long-haul optical connections without sacrificing performance or reliability.
At its core, the CPAK-100G-LR4 leverages 4-wavelength LAN Wavelength-Division Multiplexing (WDM) technology, aggregating four 25Gbps lanes onto a single duplex SMF pair to achieve a total throughput of 100GbpsCisco. This design efficiently utilizes fiber infrastructure, making it ideal for maximizing existing network capacity. The module is fully compliant with the IEEE 802.3ba standard, ensuring seamless interoperability with a wide range of Cisco and third-party networking equipmentCisco.
Designed for high-density environments, the CPAK form factor offers significant advantages over older form factors like CFP. It delivers up to 20% higher port density and 40% lower power consumption (typically <5.5W) compared to CFP2 modules, and up to 70% lower power than traditional CFP interfaces. This efficiency directly translates to reduced operational costs, lower heat generation, and increased overall network scalability.
Featuring a hot-swappable design, the CPAK-100G-LR4 enables hassle-free installation, replacement, and maintenance in live network environments, minimizing downtime and operational disruption. It supports Digital Optical Monitoring (DOM), providing real-time visibility into critical optical parameters such as transmit power, receive power, temperature, and voltage, empowering network administrators to proactively monitor link health and troubleshoot issues efficiently.
The module supports both SC/PC (officially supported) and LC connectors (via a removable LC-SC adapter on version 09 and later), offering flexibility for various cabling infrastructuresCisco. With a proven reach of up to 10 kilometers over standard G.652 SMF, the CPAK-100G-LR4 is perfectly suited for connecting geographically dispersed data centers, building enterprise campus backbones, and extending service provider metro Ethernet networksCisco.
| Feature | Business Benefit |
|---|---|
| 100Gbps Aggregate Bandwidth | Meets the ultra-high bandwidth requirements of modern data centers, cloud services, and carrier networks, supporting seamless transmission of large data volumes, video, and real-time applicationsCisco. |
| 10km Reach over SMF (G.652) | Enables reliable long-distance connectivity for Data Center Interconnect (DCI), campus core, and metro Ethernet applications, eliminating the need for costly signal regeneration over this distanceCisco. |
| 4-Lane LAN-WDM Technology | Efficiently multiplexes four 25Gbps channels onto a single fiber pair, maximizing fiber utilization and reducing capital expenditure on fiber infrastructureCisco. |
| IEEE 802.3ba Compliant | Guarantees industry-standard interoperability, ensuring compatibility with a vast ecosystem of 100GbE networking devices and simplifying multi-vendor network integrationCisco. |
| Hot-Swappable Design | Allows for in-field installation and replacement without powering down the host device, drastically reducing network downtime and maintenance costs. |
| Digital Optical Monitoring (DOM) | Provides real-time diagnostics and performance monitoring, enabling proactive network management, faster troubleshooting, and improved overall network reliability. |
| High-Density CPAK Form Factor | Delivers superior port density and lower power consumption compared to legacy CFP form factors, optimizing rack space, reducing cooling costs, and increasing data center efficiency. |
| Low Power Consumption (<5.5W) | Minimizes operational expenses (OPEX) related to power and cooling, supporting greener, more sustainable data center operations. |
| SC/LC Connector Flexibility | Accommodates standard SC connectors (officially supported) and offers LC compatibility via an adapter, ensuring seamless integration with existing cabling setupsCisco. |
| Cisco Quality & Reliability | Backed by Cisco’s rigorous testing and quality assurance, ensuring consistent performance, high mean time between failures (MTBF), and investment protection for mission-critical networks. |
| Parameter | Specification |
|---|---|
| Product Model | CPAK-100G-LR4 |
| Product Type | CPAK Optical Transceiver Module |
| Data Rate | 100 Gigabit Ethernet (100GbE), 4 x 25Gbps lanesCisco |
| Standard Compliance | IEEE 802.3ba (100GBASE-LR4)Cisco |
| Wavelength | 1310nm nominal (4 LAN-WDM wavelengths) |
| Fiber Type | Single-Mode Fiber (SMF), G.652Cisco |
| Maximum Reach | 10 kilometers (6.2 miles)Cisco |
| Connector Type | Dual SC/PC (officially supported); LC compatible via removable adapter (v09+)Cisco |
| Transmit Power (per lane) | Min: -4.3 dBm, Max: 4.5 dBm |
| Receive Power (per lane) | Min: -10.6 dBm, Max: 4.5 dBm |
| Power Consumption | <5.5 Watts typical |
| Operating Temperature | Commercial: 0°C to +70°C (32°F to 158°F) |
| Form Factor | Hot-swappable CPAK |
| Diagnostics | Digital Optical Monitoring (DOM) supported |
| Dimensions (W x H x D) | 34.8 x 11.6 x 101.2 mm (1.37 x 0.46 x 3.98 in) |
| Host Interface | CPAK electrical interface |
| Supported Platforms | Cisco Nexus 7000/7700 Series, ASR 1000/9000 Series, CRS-X, NCS 2000/4000/6000 Series, ONS Transport Platforms |
A: The CPAK-100G-LR4 supports link lengths of up to 10 kilometers (6.2 miles) over standard G.652 single-mode fiber (SMF)Cisco.
A: It is designed for single-mode fiber (SMF, G.652). The primary connector type is dual SC/PC. Versions 09 and later include a removable LC-SC adapter for use with LC connectors, though SC is the officially supported typeCisco.
A: Yes, the module features a hot-swappable design, allowing it to be installed or removed from a compatible Cisco device without powering down the system, minimizing network downtime.
A: DOM is a feature that provides real-time access to critical optical performance parameters (e.g., transmit/receive power, temperature, voltage). The CPAK-100G-LR4 fully supports DOM, enabling proactive network monitoring and troubleshooting.
A: It is compatible with a wide range of Cisco platforms supporting CPAK interfaces, including:
A: The CPAK form factor offers significant advantages:
A: The module typically consumes less than 5.5 Watts of power, making it highly efficient for dense data center deployments.
A: While the module is IEEE 802.3ba compliant, which ensures a high degree of interoperability, full compatibility with third-party equipment is not guaranteed. For optimal performance and support, it is recommended for use with Cisco CPAK-enabled platformsCisco.
A: The CPAK-100G-LR4 is the standard model with SC connectors and supports both 100G Ethernet and can be used in packet-optical applications. The CPAK-100GE-LR4 is an Ethernet-only variant that comes with LC connectors (no adapter required).
A: No, the CPAK-100G-LR4 is specifically designed to operate at 100 Gigabit Ethernet (100GbE) speeds and does not support 40Gbps operation.
You might also be interested in these products
The Cisco SFP-25G-SR-S is a high-performance, hot-swappable 25GBASE-SR SFP28 optical transceiver module, delivering 25Gbps Ethernet…
View Details
The Cisco QSFP-100G-ZR4-S is a high-performance QSFP28 optical transceiver designed for long-haul 100G Ethernet connectivity.…
View Details
The Cisco SFP-10/25G-LR-S is a high-performance, dual-rate SFP28 optical transceiver built for high-speed enterprise and…
View Details