Basic Analog Loop

Overview

What It Is

A Basic Analog Loop serves as a transmission path between a Verizon central office distribution frame and the loop demarcation point at your customer's premises. The loop transmits analog signals at 300 to 3000 Hz.

How It Works

Service providers connect to analog subscriber loops in order to provide loop-start services to customer locations. In essence, loop-start signaling uses the network as a battery source for switched access line signaling. The Basic Analog Loop connects to your collocation arrangement, EEL or voice grade Wholesale Advantage, wherever they are offered.

Description

This facility provides a channel suitable for the transmission of analog signals with an approximate bandwidth of 300-3000 Hz up to and including the NID at the end user's premises to the main distributing frame in the Verizon central office that serves the end user. (The basic analog loop is then connected to the service provider's collocation arrangement, EEL or Voice Grade Wholesale Advantage service, where offered.)

Basic unbundled analog loop facilities enable the service provider to connect to analog subscriber loops in order to provide loop-start services to end user locations. These facilities provide the service provider with a voice grade transmission channel suitable for loop-start signaling, a type of switched access line signaling in which the network provides a battery source.

Availability

The basic loop is only available to a service provider for use in conjunction with its provisioning of local exchange and exchange access service to its end users.

Pricing

Non-recurring charges are billed for service orders, service connections (other charges), central office wirings (if applicable), installation dispatches (if applicable), and manual intervention surcharges (if applicable). Additional non-recurring charges are assessed on expedited orders (Verizon-North).

There are unique classes of service USOCs for residence and business services. When ordering new basic 4-wire loops, Network Channel (NC) codes and Network Channel Interface (NCI) codes are required.

Pricing and applicable USOCs may vary by state jurisdiction and pursuant to individual carrier interconnection agreements. See your federal and state tariffs for detailed information.

Features

A basic analog loop may be physically provisioned in one of two ways if it is going to a collocation node or an EEL, where offered. Most basic loops consist of copper twisted pairs extending from the central office Main Distributing Frame (MDF) to the end user's location.

The other possibility is a loop using a combination of Universal Digital Loop Carrier (UDLC) and twisted pair to reach the end user. The UDLC facility channel consists of the following components: cabling between the Central Office Distributing Frame (CODF) and a UDLC Central Office Terminal (COT), a fiber or metallic facility from the UDLC COT to the UDLC Remote Terminal (RT), and cable and wire between the UDLC RT and the end user.

Finally, in the case where a UNE loop is used in connection with a Wholesale Advantage arrangement, where offered, an Integrated Digital Loop Carrier (IDLC) may be used.

When a service provider orders a basic loop, it must specify an end user location as well as a particular pair on a particular collocation arrangement (or multiplexer, in the case of EEL) cable. An appropriate facility appearing at the end user location is assigned and cross-connected to the requested collocation arrangement (or multiplexed) pair at the MDF. Interconnection at the MDF precludes the use of IDLC. Where a service provider orders a loop currently provisioned on IDLC, Verizon will make other arrangements for other facilities, where applicable.

Basic loops are provided using a variety of loop transmission technologies, including, but not limited to, metallic cable, metallic cable-based digital loop carrier, and fiber optic digital loop carrier systems. CODF wire tie cable and subscriber loop facilities are always used with basic loop services. Electronic transmission and signaling enhancement equipment are sometimes used with basic loops.