HP UX 11.x Operating Systems manual Ioalrdydsbl, Iorxbuf, Other Non-E1/T1 interfaces, ST25DSBL

		Using HDLC.FRAME Protocol
		Status and Error Messages
Table 3-3	Z7340A Interface Unsolicited Status Codes
	Unsolicited	Description
	Status Code
	IO_ALRDY_DSBL	A disable request is received, while HDLC.FRAME is
		already disabled. No action is taken.
	IO_RX_BUF	Either the port or the card as a whole is running low on
		free buffers. Some tuning of the ACC configurable
		parameters may be required. Refer to the section on
		“TTGEN” in the ACC Utilities Reference Guide.
	Other Non-E1/T1 interfaces
	The following unsolicited status codes may be received by an application
	program from the HDLC.FRAME protocol on a non-E1/T1 interface.
Table 3-4	Other Non-E1/T1 Interface Unsolicited Status Codes
	Unsolicited	Description
	Status Code
	IO_OK	No error detected.
		Normal communications have been established or
		resumed.
	ST25DSBL	Terminal Disabled
	ST25XDCD	Loss of DCD signal
	ST25XCTS	Loss of CTS signal
	IO_STATS	This message is sent in response to a CW_STATS control
		write. The data buffer contains a x25l2stat_type
		structure (defined in zcomx25.h)

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