ADTRAN ISU 512 - Manual (Page 103)

Appendix C. AT Commands
61202.086L1-1 ISU 512 User Manual 87
&Z4 - Stored number 4
&Z5 - Stored number 5
&Z6 - Stored number 6
&Z7 - Stored number 7
&Z8 - Stored number 8
&Z9 - Stored number 9
ISDN Switch Type Options
_S0 - 5ESS
_S1 - DMS-100
_S2 - National ISDN-1
_S3 - NEC
_S4 EuroISDN (only available on the ISU 512 ST)
ISDN U-interface Operational Mode Options
_X0 - ISU timing slaves to network (NT)
_X1 - IU is U-interface timing master (LT)
Reset
_Z - Unit reset, equivalent to cycling power
_F - Factory reset, equivalent to pressing 0 on power up
Table C-A
AT Commands
Command Definition Function