SUBSPEC - Sub-Product Code

Identifies the type of Sub-Loop being ordered

VALID ENTRIES:

UNBSBF = Central office ILEC's primary point to connect customers to the network. These highly secure buildingscontain computerized network switching equipment. or Main distribution frame to Remote terminal or Feeder distribution interface A common boundary between two systems or pieces of equipment over which there is intersystem communications. (DS3 only)Central office or Main distribution frame to Engineering controlled splice

UBNSBL = Engineering controlled splice to  Network interface device

USLMTM = Central office or Main distribution frame to Terminal

USLSFT = Serving area interface to Feeder distribution interface or Terminal

USLTMN = Terminal to Network interface device

USLRTM = Engineering controlled splice to Terminal

USLSFN = Serving area interface or Feeder distribution interface to Network interface device

USLMSF = Central office or Main distribution terminal to Serving area interface or Feeder distribution interface

USAGE: This field is conditional.

NOTE 1: Required when the request is for a sub-loop

DATA CHARACTERISTICS: 6 alpha characters

EXAMPLE: U N B S B F