ADTRAN ISU 2X64 user manual Carrier Detect CD Control Line Options

Appendix A: AT Commands

Command	Function
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)
Generic Unit Configurations
&F0	Resets all S-registers to factory preset values
&F1	Configures unit for Dial 56k sync
&F2	Configures unit for Dial 64k sync
&F3	Configures unit for Dial 112k sync
&F4	Configures unit for Dial 128k sync
&F5	Configures unit for Leased 64k
&F6	Configures unit for Ldm 64k master
&F7	Configures unit for Dial 57.6k async
&F8	Configures unit for Dial 115.2k async
&F11	Configures unit for FALLBACK 57.6k async
Network Options
&L0	Dial network
&L1	Leased network
Calling Number Identification
&N0	Number 1. Read far-end phone number 1 if service subscribed from
	telephone company.
&N1	Number 2. Read far-end phone number 2 if service subscribed from
	telephone company.

90 ISU 2x64 Dual Port ISDN Service Unit User Manual 61200051L1-1D