unspecifiedType: ExchangeType ~ [0, 0];

timeServiceType: ExchangeType ~ [0, 1];

clearinghouseServiceType: ExchangeType ~ [0, 2];

teledebugType: ExchangeType ~ [0, 10B];

mailFirstType: ExchangeType ~ [0, 20B];

mailLastType: ExchangeType ~ [0, 27B];

remoteDebugFirstType: ExchangeType ~ [0, 30B];

remoteDebugLastType: ExchangeType ~ [0, 37B];

acceptanceTestRegistrationType: ExchangeType ~ [0, 40B];

performanceTestDataType: ExchangeType ~ [0, 41B];

protocolCertificationType: ExchangeType ~ [0, 50B];

voyeurType: ExchangeType ~ [0, 51B];

dixieDataType: ExchangeType ~ [0, 101B];

dixieAckType: ExchangeType ~ [0, 102B];

dixieBusyType: ExchangeType ~ [0, 103B];

dixieErrorType: ExchangeType ~ [0, 104B];

outsideXeroxFirstType: ExchangeType ~ [200B, 0];

outsideXeroxLastType: ExchangeType ~ [LAST[BYTE], LAST[BYTE]];