CVV, CVV2, CVC2 or PVV means the security digits encoded on the Card, printed on the Card signature strip or appearing elsewhere on the Card.
Digital Signal Level 0 (DS-0) means the lowest-level signal in the time division multiplex digital hierarchy, and represents a voice-grade channel operating at either the 56 Kbps or 64 Kbps transmission bit rates. There are twenty-four (24) DS-0 channels in a DS-1.
H1, H2 etc means First Highest, Second Highest Offers etc. in Disposal Tenders means
Digital Signal Level 1 (DS-1) means the 1.544 Mbps first level signal in the time division multiplex hierarchy.
L1. L2 etc means First or second Lowest Offer etc."L1. L2 etc" means First or second Lowest Offer etc. "LC" means Letter of Credit"LC" means Letter of Credit