Nortel Networks 553-3001-211 manual Dtr, Hotline Type of device to be connected Group selection

Page 424 of 894 NT7D16 Data Access card

The fourth mode, gateway, is a subset of the modem mode and is not normally used. This mode is useful if the attached modems do not have Ring Indicator lead. The application used is inbound modem pooling.

The different modes enable the DAC to connect to different types of devices such as modems (modes 0, 1, 2, and 3), gateways (modes 4, 5. 6, and 7), hosts (modes 8. 9. 10, and 11), and terminals (modes 12. 13. 14, and 15). After selecting the appropriate group (that is, modem, gateway, host, or terminal), the installer should study the four different modes in that group to make the proper selection. See Table 152.

Table 152

DAC mode of operation selection (Part 1 of 5)

Service changeable downloadable parameters (LD 11)

Operation mode

Modem/

Gateway/

Host/KBD

Forced

DTR*

Hotline

Type of device to be connected

Group selection

DEM

PRM

DTR

HOT

0 (DTE)	OFF	OFF	OFF	Modem Pool	Modes 0, 1, 2,
	“Host On”	Not	Not	inbound and	and 3 are for
	(Ring	Forced	Hotline	outbound (similar	RS232 modem
	Indicator			to Synchronous /	connectivity
	— RI)			Asynchronous
				Data Module
				(SADM) in
				inbound) MSB by
				RI
1 (DTE)	OFF	OFF	ON	Modem Pool
	“Host On”	Not	Hotline	inbound only
	(RI)	Forced		(Hotline by RI-
				similar to SADM)

* Not prompted for Type = R422. Defaults for Type = R422: DEM = DCE and DTR = OFF.

553-3001-211 Standard 2.00 September 2004