NEC NDA-30115-001 manual Chapter Glossary, Bcc

Property Management System - Communication InterfaceGlossary

Chapter 6	Glossary
	BCC	Block Check Code. Computed by an exclusive OR of the
		message from the SA field to the ETX character, inclusive.
		This is used to assist in error control.
	EI	Entry Index. Always ‘L’ for the PMS interface.
	ETX	End of Text. Special control character used to denote the end
		of a message block. Always 03H.
	FC	Function Code. Identifies a specific message within a feature
		code. The combination of feature code and function code
		uniquely identifies each message. See Appendix C for a list of
		codes.
	FTC	Feature Code. Identifies a set of related messages. See
		Appendix B for a list of codes.
	MSC	Message Counter. Specifies the length of the significant data
		in a message. The count begins with the FTC field and ends at
		the last character of the body (prior to the ETX character). The
		count includes the MSC field, which is always two characters.
	MWL	Message Waiting Lamp.
	NEAX	The NEAX2400 IMS system. It is a private branch exchange,
		which is a digital voice and data communication system for
		the office.
	PMS	Property Management System. A set of software and
		hardware which manages a hotel’s assets.
	SA	System Address. Always ‘1’ for the PMS interface.
	STX	Start of Text. Special control character used to denote the start
		of a message block. Always 02H.
	Suite Room	This is an optional feature of the NEAX that enables a group
		of extensions to be treated as the same extension in a room.
		Messages refer to all extensions in a suite by means of the
		suite’s primary extension.
	UA	Unit Address. Always ‘!’ for the PMS interface.
	Violation Code	This is a special FTC that ranges from 80H to FFH. It
		identifies a message from the PMS that the PBX (or UAP) has
		rejected for some reason. The FTC of the original message,
		subtract 80H from the violation code. The body of the original
		message is unchanged.

NDA-30115 Revision 1.0 Page 89