Identifies the Optical Concentration Device (OCD) circuit identification number associated with the termination on the OCD.
VALID ENTRIES:
SERIAL NUMBER FORMAT
Service Code and Modifier/Serial Number/Provider Code
USAGE: This field is conditional.
NOTE 1: Required when ordering high frequency portion of the loop (HFPL) data only broadband or high frequency portion of the subloop (HFPSL) broadband services.
DATA CHARACTERISTICS: 23 alpha/numeric characters
EXAMPLES: H F F U . 1 2 3 4 5 6 . L B
O B F U . 1 2 3 4 5 6 . M B