CPAK-100G-CWDM4

100GBASE-CWDM4 Cisco CPAK Module for SMF

The Cisco CPAK-100G-CWDM4 provides extended reach 100GbE connectivity up to 2km over duplex single-mode fiber.

CPAK-100G-CWDM4 Overview

The Cisco CPAK-100G-CWDM4 module supports 100Gbps Ethernet connectivity over duplex single-mode fiber up to 2km. It uses 4 different CWDM wavelengths multiplexed over a single fiber pair.

This CWDM4 module maps a 100GbE signal across 4 lanes, each transmitting at 25.78125Gbps. It provides extended reach and low cost 100G interconnects without the use of parallel fiber cabling or MPO connectors.

The CPAK-100G-CWDM4 enables smooth upgrade to 100G speeds while reusing existing duplex G.652 SMF links up to 2km. Its small CPAK footprint allows for high density aggregation.

Quick Specifications

Spec	Value
Data Rate	1 x 100Gbps
Protocol	100G CWDM4
Reach	2km
Fiber	SMF G.652
Connectors	LC Duplex
Power	<9W

CPAK-100G-CWDM4 Features and Benefits

Key aspects of the CPAK-100G-CWDM4 module:

Extended reach – Supports up to 2km with CWDM optics
Pay-as-you-grow scalability – Smooth upgrade from 10G/40G
Compact design – Enables high density aggregation
Low Cost – Only requires a single fiber pair

Compatible Products

The module is supported on these Cisco platforms:

Product Family	Models
Nexus Switches	Nexus 3000, Nexus 9000
Routers	Network Convergence Systems
Optical Systems	NCS 2000, 15454 MSTP

Full Specifications

Optical

Parameter	Value
Tx Power (per lane)	+2.5 to -6.5 dBm
Rx Power (per lane)	+2.5 to -11.5 dBm
Wavelengths	1271, 1291, 1311, 1331 nm

Electrical and Physical

Spec	Value
Power	< 9W
Dimensions	11.6 x 34.8 x 101.2 mm
Weight	127 grams
Operating temp	0 to 70°C

CPAK-100G-CWDM4 Licensing

No special licensing terms or conditions.

Warranty

1 year warranty, extendable with Cisco SMARTnet.

Installation and Configuration

Hot-swappable into CPAK ports on Cisco routing, switching, and optical platforms.

Brand

Cisco Systems

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