ADTRAN Express XRT manual Carrier Detect CD Control Line Options

Appendix A. AT Commands and S-Registers

I0	Identify unit. Commands the unit to display model
	number.
I1	Identify software. Commands the unit to display soft-
	ware version.
O	On-line. Commands the unit to go back on line
S	S Register.
S36	Inactivity Timer in minutes (0-255).
	0=inactivity timer off.
S37	Flash Hook button function
	0=Flash (Call Waiting)
	1=Conference
SS	S String register.
&V	Displays the contents of all S registers.
Z	Reset. Resets the AT command processor.
&W	Save. Save current configuration to EEPROM.

+++Break in. Break in AT command processor during an active call. The break in key is defined in S2.

Carrier Detect (CD) Control Line Options

&C0	CD forced on.
&C1	CD normal.
&C2	CD off with local disconnect (LOCD)
&C3	CD off with link down.
Data Terminal Ready (DTR Control Line Options)
&D0	Ignore DTR
&D1	DTR off forces command.
&D2	Idle when off. DTR off forces idle (On allows auto
	answer).
Command	Function
Generic Unit Configurations
&F0	Factory Default (fallback auto-protocol detect)
&F1	Internet 64K
&F2	Internet 128K
&F4	Remote Access 128K
&F7	Configures unit for Dial 57.6k async
&F8	Configures unit for Dial 115.2k async
&F11	Configures unit for FALLBACK

60 Express XRT User Guide 61202.153L3-1