This item is used and untested- It has cosmetic wear- What you see in the pictures is exactly what you will receive 

The Cisco 4013900.1530 ASSY, MOD, GS7000 HI GAIN CWDM TX 1510SCA is a high-gain CWDM (Coarse Wavelength-Division Multiplexing) reverse optical transmitter module for the Cisco GS7000 Node. 

Here's what you do with it:

Install it in a Cisco GS7000 Node: This module is designed to be installed in the GS7000 node's housing lid, which has positions for up to four optical receivers and four optical transmitters.

Enable CWDM Transmission in the Reverse Path: The GS7000 Node allows for flexible reverse path configurations. This module allows you to transmit reverse traffic (from the subscriber back to the headend) using a CWDM wavelength. Specifically, this is a 1510nm transmitter.

Achieve High Gain for Extended Reach: The "HI GAIN" designation indicates that this transmitter provides high gain, which is important for extending the reach of the signal in the reverse path.

Facilitate Segmentation and Redundancy: The GS7000 Node supports independent segmentation and redundancy for both forward and reverse paths. This module allows you to route reverse traffic to one of the available transmitter positions, enabling potential segmentation or redundancy strategies. 

In summary, you use the Cisco 4013900.1530 module to transmit reverse optical signals on a CWDM wavelength within a Cisco GS7000 Node, which is typically deployed in fiber-optic broadband networks by cable operators and service providers. 

What you see in the photos is exactly what you will receive.

Our knowledge of this item is very limited. 

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