Identifies the related provider’s physical circuit ID against which the VC activity is requested.
USAGE: This field is conditional.
NOTE 1: Required when the RPON and RORD fields are not populated, otherwise optional.
DATA CHARACTERISTICS: 53 alpha/numeric characters.
EXAMPLE: 1 0 1 / T 1 / M H V L N J 9 9 W 0 1 / N W R K N J
1 0 D S 1