VTIA - Virtual Termination Identifier A

Identifies the virtual assignments used in conjunction with the Complement Number One (1) element within the DPEAA field.

VALID ENTRIES:

Position 1 = 1 - 7

Position 2 = 1 - 4

Position 3 = preprinted hyphen

Position 4 = 1 - 7

Position 5 = 1 - 4

NOTE 1: The first and fourth positions identify the Virtual Tributary Groups (VTG).

NOTE 2: The second and fifth positions identify the Virtual Tributary (VT).

NOTE 3: The fourth and fifth positions are only used when sequential assignments are being made.

USAGE: This field is conditional.

NOTE 1: Optional when the DPEAA field is populated and the Complement Two (2) element is not populated, otherwise prohibited.

DATA CHARACTERISTICS:  5 alpha/numeric characters (Including one preprinted hyphen)

EXAMPLES: 1 4 - 7 4

   1 4 -