Unbundled Local Loop - Digital Signal Level 3 (DS3) Capable Loop - V30.0
Unbundled Local Loop - Digital Signal Level 3 (DS3) Capable Loop is a transmission path between a CenturyLink™ Central Office (CO) DSX-3, or equivalent, and the loop demarcation point at the end-user premises. DS3 Capable Loop transports bi-directional DS3 signals with a nominal transmission rate of 44.736 megabits per second (Mbps). DS3 channel will typically be provided using a channel of a fiber based system.
Additional information on Unbundled Local Loops is located in Unbundled Local Loops General Information.
DS3 Capable Loop is available where facilities exist throughout CenturyLink QC.
Non-Impaired Wire Centers and the Omaha Forbearance Wire Centers are described at CenturyLink Non-Impaired Wired Center Lists for Loops and Dedicated Transport . In those cases, the DS3 equivalent facility is available only via CenturyLink’s Special Access Tariffs.
Terms and Conditions
General Interconnection Agreement, regulation and policy information for DS3 Capable Loop are described in the Terms and Conditions section of Unbundled Local Loop - General Information.
A requesting telecommunication carrier may obtain a maximum of 1 (one) Unbundled DS3 Loop to any single building in which DS3 loops are available as Unbundled Loops.
CenturyLink is not obligated to provision DS3 capable Loops to End User Customers in areas served exclusively by Loop facilities or transmission equipment that are not compatible with the requested service.
Technical PublicationsTechnical characteristics, including Network Channel/Network Channel Interface (NC/NCI) Codes, are specified in Technical Publication, Interconnection - Unbundled Loop, 77384 and technical details for DS3 Capable Loops are described in Technical Publication, CenturyLink DS3 Service, 77324.
Recurring charges are comprised of the following rate elements:
- DS3 capable loop
- Interconnection Tie Pair (ITP), per connection (a DS3 ITP for DS3)
Recurring charges are billed on a month-to-month basis.
Nonrecurring charges are billed at the time service is rendered. Nonrecurring charges depend on the Installation option chosen. A nonrecurring charge applies to the installation of service(s) and in some states a disconnect service(s) charge will apply. CenturyLink is not obligated to provision DS3 capable Loops to End User Customers in areas served exclusively by Loop facilities or transmission equipment that are not compatible with the requested service.
Additional rate element information is available in the Pricing section of Unbundled Local Loop - General Information.
Rates are available in Exhibit A or the specific rate sheet in your Interconnection Agreement. If there are elements that are not in your Interconnection Agreement, contact your CenturyLink Service Manager.
Tariffs, Regulations and Policy
Tariff, regulations and policies are located in the state specific Tariffs/Catalogs/Price Lists.
There are no optional features available with DS3 Capable Loop.
If you are a new Competitive Local Exchange Carrier (CLEC) and are ready to do business with CenturyLink, view Getting Started for Facility-Based CLECs. If you are an existing CLEC wishing to amend your Interconnection Agreement or your New Product Questionnaire, additional information is located in the Interconnection Agreement.
Prior to ordering a DS3 UBL, CLECs must have a certification form on file. That form certifies that the CLEC:
- Is using the circuit for local traffic.
- Is ordering a circuit in an impaired Wire Center as filed by CenturyLink QC.
- Is ordering a circuit that does not exceed the cap in an impaired Wire Center as filed by CenturyLink QC.
- Is not accessing an unbundled network element for the provision of mobile wireless services or interexchange services.
The Certification of Remand Order Criteria High Capacity Unbundled Transport, Unbundled Loop, and Combinations form is kept on file at CenturyLink subsequent to submission to the Account Team / Sales Executives and Service Managers.
The Interconnect Mediated Access (IMA) User's Guide specifically details the information applicable to preordering functions.
CenturyLink strongly recommends use of pre-ordering functionality to assist in achieving increased service request flowthrough and accuracy that will result in reduced order rejects.
The following activities may need to be performed by you in preparation for the issuance of the service request:
- Validate address
- Validate Connecting Facilities Assignment (CFA)
- Review Customer Service Record (CSR)
- Check facility availability
- Query Fiber Data Reports
These activities will enable you to verify the type of facility and the loop make-up of the Unbundled Local Loop, which will assist you in identifying the appropriate service intervals, described in the Service Interval Guide (SIG).
More information can be found on these activities in the Loop Qualification and Raw Loop Data - CLEC Job Aid.
Additional pre-ordering information is located in the Pre-Ordering section of Unbundled Local Loop - General Information.
Requirements for pre-ordering are described in the Local Service Ordering Guidelines (LSOG)
General ordering activities are described in the Ordering Overview.
Unbundled Local Loop Installations Options
Six installation options are available for Unbundled Local Loop. Detailed information about the different installation options is available in the Ordering section of Unbundled Local Loop - General Information.
Circuit ID (ECCKT)
DS3 Capable Loop are assigned with Circuit Identification numbers. Detailed information about the Circuit Identification number format is available in the Ordering section of Unbundled Local Loop - General Information.
Required Forms and Activity Types
DS3 Capable Loops orders are submitted using the following Local Service Ordering Guidelines (LSOG) forms:
- Local Service Request (LSR)
- End User (EU)
- Loop Service (LS)
- Directory Listing (DL), if applicable
Service requests can be rejected for various reasons. Error and rejection notifications are described in the Ordering Overview.
Service interval guidelines are located in the SIG.
Firm Order Confirmation (FOC) intervals are located in the SIG.
A jeopardy occurs on a service request if a condition exists that threatens timely completion. Jeopardy notifications are described in the Provisioning and Installation Overview.
Cooperative and Performance Testing shall conform to objective limits of American National Standards Institute (ANSI) T1.510 Standard.
Loss and Completion Reports are generated based on loss and gain account activity. Loss and Completion Reports are described in Billing Information Additional Outputs SMDR, Completion Report, Loss Report.
Installation hours are 8:00 a.m. to 5:00 p.m., Monday through Friday. Installations requested outside of the normal operating hours are considered to be Out of Hours Installations.
Hours of Operation
Installation hours are described in the Provisioning and Installation section of Unbundled Local Loop - General Information.
General maintenance and repair activities are described in the Maintenance and Repair Overview.
Customer Records and Information System (CRIS) billing is described in Billing Information - Customer Records and Information System (CRIS).
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CenturyLink contact information is located in Wholesale Customer Contacts.
This section is being compiled based on your feedback.
Last Update: April 9, 2015
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