This is the raw ABCD bit pattern this gateway is currently transmitting on the outgoing CAS line, the low-level counterpart to the decoded name in ccasOLSCasSignalName. Because CAS signaling is entirely bit-pattern based, an admin who sees an unexpected outgoing signal name can drop down to this object to verify the actual bits being sent match what the signal name implies, ruling out a decode mismatch versus a genuine miscommunication. If ccasOLSCasSignalName reports 'seize' but this object shows a pattern that typically means idle, that mismatch would point to a firmware or table configuration bug rather than a real signaling problem.