Nortel Networks 553-3001-211 manual Keyboard dialing, Hotline call origination by terminal

Page 460 of 894 NT7D16 Data Access card

Table 153

Connect and disconnect protocol (Part 12 of 12)

Mode of
operation	Interface application	Comments
		Call disconnection (DAC):
		If the local DM user drops the call, the DAC turns
		DSR, DCD, and CTS OFF for 0.2 second and
		then ON.
		Call disconnection (terminal):
		The terminal sends a long break or three short
		breaks. The DAC turns DSR, DCD, and CTS OFF
		for 0.2 second, and then ON.
Mode 15	Hotline call origination	Hotline call origination by terminal:
	(Virtual Leased Line)	The DAC operation is similar to mode 13 except
		the terminal initiates the Hotline call by driving
		DTR ON. However, if the called DM is busy or not
		answering, the DAC will continuously try to
		originate Hotline calls once every 40 seconds (as
		long as DTR remains ON) until the Data Module
		answers the call.
		Call disconnection:
		Disconnection is identical to mode 12.

Keyboard dialing

Keyboard dialing is an interactive dialogue mode between the connected equipment and the DAC. This dialogue allows equipment to give dialing commands to the DAC in order to make a data call to another far-end data port. Keyboard dialing supports a modify mode that allows the user to modify certain dialing parameters.

The following keyboard dialing features are supported with the DAC:

•Autobaud from 110 to 19200 bps

553-3001-211 Standard 2.00 September 2004