Cisco CPAK-10X10G-ERL Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 10x10GBASE-ERL CPAK Hot-Swappable Parallel Single-Mode Optical Transceiver Module with Digital Optical Monitoring Support
SKU:CPAK-10X10G-ERL
Naming Breakdown
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CPAK: Cisco Parallel Attached Kit, proprietary hot-pluggable 100G transceiver form factor for Cisco high-density line cards
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10X10G: Electrical interface of ten independent 10.3125 Gbps NRZ lanes, supports breakout to ten separate 10GE ports
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ERL: Extended Reach Lite optical specification, 10GBASE-ER compatible per lane
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No suffix: Standard commercial temperature-grade variant (0°C ~ +70°C operating temperature)
Core Architecture
Ten independent 10.3125 Gbps NRZ optical lanes operating within the wavelength range of 1530 nm to 1565 nm.
The module adopts parallel ribbon fiber transmission and requires a24-fiber MPO-24 APC single-mode trunk cable (10 Tx + 10 Rx; 4 spare fibers). It implements cooled DML transmitters and high-sensitivity PIN photodiode receiver array.
Key Feature: Native breakout capability. One CPAK port can be split into ten independent 10GBASE-ER optical interfaces when matched with MPO-to-duplex LC breakout ribbon cables.
Protocol Support: 10 Gigabit Ethernet per lane; does not support aggregated 100G Ethernet mode.
Core Product Positioning
The Cisco CPAK-10X10G-ERL is a commercial-grade hot‑swappable CPAK optical transceiver designed for extended-reach multi-channel 10 Gigabit aggregation over single-mode fiber. It enables service providers and large enterprises to deploy high-density 10GE uplinks, consolidating ten separate 10G ports onto a single CPAK slot. The 25 km reach makes it suitable for inter-building campus links, metro aggregation, disaster recovery connections and legacy 10G network migration. CPAK delivers higher front-panel port density and lower power consumption compared to discrete XFP/SFP+ transceivers. Built-in DOM enables continuous real-time monitoring of optical operating parameters to simplify routine maintenance and accelerate fault troubleshooting.
2. Hardware & Software Compatibility
Supported Host Platforms
Cisco Nexus 7000 / Nexus 7700 Series switches equipped with F3-series 100G line cards (N7K-F306CK-25);
ASR 9000, CRS-X, NCS 2000 / 4000 / 6000 Series routing and transport platforms.
Verify Cisco official transceiver compatibility matrix and minimum required firmware release prior to deployment.
Supported Operating Systems
NX-OS, IOS-XR releases supporting CPAK transceiver recognition, DOM monitoring and 10x10G breakout interface operation.
Supported Fiber Media
Single‑Mode Fiber (SMF) G.652 (OS2, 9/125μm) only; incompatible with multi-mode fiber.
Connector Type
MPO‑24 APC multifiber optical connector
Important: APC-terminated 24-fiber ribbon cables are mandatory; UPC MPO cables are not supported.
3. Physical & Optical Performance Specifications
Form Factor
Hot‑swappable proprietary CPAK form factor
Dimensions: 11.6 × 34.8 × 101.2 mm
Optical Interface
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Operating Wavelength Window: 1530 nm ~ 1565 nm (10 independent optical lanes)
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Electrical Interface: 10 × 10.3125 Gbps NRZ
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Modulation Scheme: NRZ
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Transmitter: Cooled DML array; Receiver: PIN photodiode array
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Operating Mode: Breakout to ten independent 10G ports; aggregated 100G mode unsupported
Maximum Transmission Distance
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Up to25 kmover standard G.652 OS2 single-mode fiber
Optical Power Budget (Per Lane)
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Average Transmit Optical Power: −7.7 dBm ~ +4.0 dBm
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Minimum Receiver Sensitivity: −14.4 dBm
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Maximum Allowable Received Optical Power: +0.5 dBm
Digital Diagnostics
DOM / Digital Optical Monitoring Supported (SFF-8472)
Monitors internal module temperature, supply voltage, laser bias current, transmit optical power and received optical power on each lane.
Environmental Specifications (Commercial Grade)
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Operating Temperature:0°C ~ +70°C (32°F ~ 158°F)
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Storage Temperature: −40°C ~ +85°C (−40°F ~ 185°F)
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Relative Humidity: 5% – 95%, non‑condensing
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Maximum Operating Altitude: 3,000 meters
Typical Power Consumption
4. Supported Functional Capabilities
Ethernet Transport
Ten independent wire-speed full-duplex 10GBASE-ER NRZ Ethernet interfaces via breakout ribbon cables; aggregated 100G operation is not supported.
Layer 2 Protocol Support
802.1Q VLAN trunking, IEEE 802.3x pause frame flow control, LACP, STP/RSTP/MSTP, EtherChannel link aggregation
Interface Diagnostics
Per-channel link status detection, error statistics, DOM real-time optical telemetry, LOS (Loss of Signal) alarm indication, Tx disable control, local loopback testing
High Availability
Supports hot-plug OIR (Online Insertion and Removal) on compatible Nexus and ASR platforms; supports link redundancy via port-channels and spanning tree protocols
Operations & Management
NX-OS / IOS-XR command-line interface, SSH, SNMP v2c/v3, Syslog logging
5. Typical Deployment Scenarios
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High-density 10GE aggregation for multi-building enterprise campus interconnections (≤25 km)
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Service provider metro edge aggregation, mobile backhaul and wholesale 10G circuit delivery
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Disaster recovery remote site links and inter-data-center 10G service connections
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Network migration projects consolidating multiple discrete SFP+/XFP 10G ports onto CPAK line cards
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Carrier-grade transport deployments requiring ten independent long-reach 10G interfaces from a single slot
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950‑1, IEC/EN 60950‑1, CSA C22.2 No.60950‑1
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EMC Compliance: CE Mark, FCC Part 15 Class A, ICES‑003 Class A
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Laser Safety: Class 1 Laser Product conforming to IEC 60825‑1
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Industry Standards: IEEE 802.3ae, SFF‑8472 DOM standard
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Environmental Regulation: RoHS compliant, WEEE directive compliant
7. Standard Factory Package Contents
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Cisco CPAK-10X10G-ERL CPAK Optical Transceiver
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Hardware Installation Guide
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Safety and Regulatory Documentation
MPO‑24 APC single-mode ribbon trunk cables and MPO-to-duplex LC breakout harness sold separately. Requires 20 active single-mode fibers for bidirectional transmission.
Model Comparison Reference
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CPAK-10X10G-ERL: CPAK MPO‑24 APC parallel SMF, max 25km, ten independent 10GBASE-ER breakout ports
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CPAK-10X10G-LR: CPAK MPO‑24 APC parallel SMF, max 10km, ten independent 10GBASE-LR breakout ports
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CPAK-100G-SR10: CPAK MPO‑24 UPC parallel MMF, short-reach multi-mode, aggregated 100G or 10×10G breakout
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CPAK-100G-LR4: CPAK Duplex SC LAN-WDM SMF, 4×25G, native aggregated 100G operation
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CPAK-100G-CWDM4: CPAK Duplex LC CWDM SMF, max 2km, aggregated 100G interface
UNSPSC Classification Code
43222618 – Cisco CPAK-10X10G-ERL extended-reach parallel single-mode CPAK transceiver with DOM, hot-swappable breakout-capable ten-channel 10 Gigabit optical module for high-density enterprise campus, metro aggregation and inter-site networking on Nexus 7000/7700 and ASR9000 platforms.
Hardware Warranty
Genuine Cisco transceivers are covered under Cisco limited hardware warranty. Warranty terms for refurbished units follow respective reseller agreements.
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