1018 Category 3, Type D - Dedicated Program Audio BSA

Category 3 - Dedicated Basic Serving Arrangement

A dedicated BSA provides an ESP with a dedicated point-to-point connection 
through the network.  This category of serving arrangements are available 
full-time so that individual calls are not set up and taken down.  This BSA 
is capable of supporting analog or digital signals at various transmission 
rates.  The transmission interface may be 2-wire or 4-wire, or derived from a 
variety of multiplexing alternatives (e.g., DS-1 or DS-3).  It is also capable 
of providing supervisory signaling in some configurations. 

Route diversity may be available with this serving arrangement.

------------------------------------------------------------------------

Category 3, Type D - Dedicated Program Audio BSA

The dedicated program audio BSA provides an ESP with a one-way non-switched 
channel to the ESP's client that can pass an analog signal up to 15000 Hz.  This
serving arrangement is usually provided for transmission of music, but it is 
capable of voice and data within the band pass limits.  Nominal frequency 
bandwidths for this serving arrangement are: 50 to 15000 Hz, 200 to 3500 Hz, 
100 to 5000 Hz or 50 to 8000 Hz.

Generic Name of BSA
 	Regional Company BSA Name
==========================================================================
Category 3, Type D - Dedicated Program Audio BSA
	AM - Dedicated Program Audio
	BA - Dedicated Program Audio
     	BS - Dedicated Program Audio
     	NX - Dedicated - Program Audio
     	PB - Program Audio Service
     	SWB - Special Access - Program Audio
     	USW - Analog PLS - AS

Reference:  TR-NPL-000337 Program Audio Special Access and Local Channel
Services, Issue 1, July 1987.
Also see TR-TSY-000431 15 kHz Digital Audio Terminal for Program or
Television Requirements and Objectives, Issue 1, October 1987. 
