Средства и методы разработки

S = 1 Digit Hex checksum calculated such that: (Sum of all message digits + S) MOD 15 = 0 Note: A ‘0’ shall be transmitted as a 10 and valued as a 10 for checksum purposes even though it is displayed and printed as ‘0’. It uses the same tone pair as the ‘0’ (OPER) key on a standard telephone.