Finding ECS Serial Number ,Model and Version through REST API

I am not able to access this CLI link https://dell.to/48cYZMp. Can you direct me to any other link?

I see some version number and serial numbers in GET /license. Are these related to ECS or license related?

HTTP/1.1 200 OK 
Content-Type: application/xml 

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<license>
    <license_feature>
        <issued_date>01/10/2014</issued_date>
        <error_message></error_message>
        <expired_ind>false</expired_ind>
        <issuer></issuer>
        <license_id_indicator>U</license_id_indicator>
        <licensed_ind>true</licensed_ind>
        <model>ViPR_ECS</model>
        <notice>ACTIVATED TO License Site Number: PTA06JUN20131086059</notice>
        <product>PXTYD1DZK59Y4C</product>
        <serial>PXTYD1DZK59Y4C</serial>
        <site_id>UNKNOWN</site_id>
        <trial_license_ind>false</trial_license_ind>
        <version>2.0</version>
    </license_feature>
    <license_text> </license_text>
</license>