Nortel Networks 553-3001-211 manual Inbound and Outbound Gateway protocol

Page 454 of 894 NT7D16 Data Access card

Table 153

Connect and disconnect protocol (Part 6 of 12)

Mode of
operation Interface application	Comments

Mode 6 Inbound and Outbound Gateway access (with forced DTR)

Inbound and Outbound Gateway protocol:

The DAC operation is identical to mode 4 except that DTR is always forced ON (except during disconnect). The establishment of the outbound call does not require DCD to be driven ON by the Gateway.

Call disconnection:

		Disconnection is identical to mode 4 except that
		when a call is released, the DAC turns DTR OFF
		for 0.2 second and then ON. DTR stays ON until
		the next call release.
Mode 7	Inbound Hotline Gateway	Inbound Hotline Gateway protocol:
	access (with forced DTR)	The DAC operation is identical to mode 5 except
		that DTR is always forced ON (except during
		disconnect).
		Call disconnection:
		Disconnection is identical to mode 6.

553-3001-211 Standard 2.00 September 2004