Cisco CWDM-OADM1-1490 1490nm Dual Single-Channel CWDM OADM Module – Passive Optical Add/Drop

The Cisco CWDM-OADM1-1490 is a passive Coarse Wavelength Division Multiplexing (CWDM) Optical Add/Drop Multiplexer module designed to add and drop the 1490nm optical channel in a CWDM network. It provides dual single-channel add/drop functionality, allowing the same 1490nm wavelength to be added or dropped in both directions of an optical ring.

Unlike an active Ethernet optical transceiver, the CWDM-OADM1-1490 is a passive optical networking component. It does not generate, receive or electrically convert Ethernet signals. Instead, it routes the 1490nm optical wavelength within a compatible Cisco CWDM passive optical system.

Cisco CWDM-OADM1-1490 Key Features

• Passive CWDM Optical Add/Drop Multiplexer
• Dedicated 1490nm CWDM wavelength
• Dual single-channel OADM architecture
• Adds and drops the 1490nm channel in both directions of an optical ring
• Other CWDM wavelengths pass through the OADM
• Transparent to compatible 1300nm optical services
• Violet color-coded connector identification for the 1490nm channel
• Integrated monitor port for optical power meter or optical spectrum analyzer
• Designed for compatible Cisco CWDM chassis and optical transceivers

Cisco CWDM-OADM1-1490 Technical Specifications

1490nm CWDM Optical Add/Drop

The Cisco CWDM-OADM1-1490 is specifically designed for the 1490nm CWDM channel. In a CWDM ring, it can add a local 1490nm service onto the optical network and drop the corresponding 1490nm service from the network. Other CWDM wavelengths are passed through the OADM.

Dual Single-Channel OADM Architecture

Cisco's dual single-channel OADM architecture allows the 1490nm channel to be added and dropped in both directions of an optical ring. Cisco specifies two network fiber strands for the OADM and a maximum of two Gigabit Ethernet links in this architecture.

1490nm Violet Color Coding

Cisco uses color coding to identify CWDM wavelengths. The 1490nm CWDM-OADM1-1490 uses a violet connector color code, matching the corresponding Cisco 1490nm CWDM optical transceiver equipment.

Optical Monitoring

The CWDM-OADM1-1490 includes a monitor port that can be connected to an optical power meter or optical spectrum analyzer. This allows technicians to monitor optical performance and troubleshoot the CWDM network without directly interrupting the primary optical path. Cisco specifies a maximum monitor insertion loss of 23dB.

Optical Insertion Loss

Cisco specifies a maximum 1.5dB CWDM channel insertion loss for the add/drop path. The pass-through insertion loss is specified at up to 1.5dB for 1550nm and 1.7dB for 1310nm. These values should be included when calculating the complete optical link budget.

1300nm Transparency

The dual single-channel Cisco OADM architecture is transparent to the 1300nm wavelength and incorporates filtering intended to allow compatible legacy SONET, SDH and ATM services to coexist with CWDM services on the same optical fiber infrastructure.

Cisco CWDM Transceiver Compatibility

The CWDM-OADM1-1490 is designed to work with compatible Cisco 1490nm CWDM optical transceivers. The equipment-side optical channel should be matched to the 1490nm wavelength. Cisco's CWDM architecture uses wavelength-matched CWDM GBIC or CWDM SFP transceivers with the passive OADM modules.

Applications

• CWDM optical ring networks
• 1490nm wavelength add/drop applications
• Enterprise campus optical networks
• Metropolitan-area optical networks
• Service-provider access networks
• Multi-service CWDM infrastructure
• Legacy 1300nm service integration
• Optical network monitoring and troubleshooting

Compatibility

The Cisco CWDM-OADM1-1490 is intended for use within Cisco CWDM passive optical systems and compatible CWDM chassis. Cisco documentation identifies the CWDM-CHASSIS-2 as a compatible 2-slot, 1RU chassis for the CWDM passive system.

The OADM should be paired with a compatible 1490nm CWDM optical transceiver. Optical components should be matched by wavelength, connector type and optical budget before deployment.

Important: Passive OADM, Not an Active Transceiver

Although this product is sometimes described as a “transceiver OADM module,” the Cisco CWDM-OADM1-1490 is a passive optical add/drop module. It does not contain an Ethernet transmitter or receiver and does not provide an independent electrical network interface. Its function is wavelength routing within a CWDM optical network.

End-of-Sale Information

Cisco has announced the CWDM-OADM1-1490= as part of the end-of-sale Cisco CWDM OADM product family. Cisco states that there is currently no replacement available for the CWDM OADM modules. The published lifecycle information lists August 31, 2029 as the last date of support for the affected hardware.

Cisco CWDM-OADM1-1490 Price in Bangladesh

The price of the Cisco CWDM-OADM1-1490 in Bangladesh depends on product condition, sourcing, availability and warranty/support requirements. As this is an end-of-sale passive optical module, availability may vary. Contact Datacom Technologies (BD) for the latest price and availability.

Sales: sales@datacom.com.bd

Why Choose Cisco CWDM-OADM1-1490?

• Dedicated 1490nm CWDM optical channel
• Dual single-channel add/drop architecture
• Suitable for CWDM ring deployments
• Passive operation with no electrical power requirement
• Integrated optical monitoring port
• Supports compatible 1300nm pass-through services
• Designed for integration with Cisco CWDM optical transceivers
• Suitable for enterprise and metropolitan optical infrastructure

Buy Cisco CWDM-OADM1-1490 in Bangladesh

Looking for a Cisco CWDM-OADM1-1490 1490nm OADM module in Bangladesh? Contact Datacom Technologies (BD) for pricing, availability and CWDM compatibility guidance.

Email: sales@datacom.com.bd