Table B-D Fxs+ Mode (Ground Start) - ADTRAN 1200080L1 User Manual

Appendix B. Signaling States Vs. Mode of Operation
FXS+
2W Input
(Outgoing call from FXS+)
No Ring Gnd
or
Loop Open
Ring Gnd
Ring Gnd
or
Loop Closed
Loop Open
Loop Closed
( Incoming call to FXS+)
(IDLE)
Loop Open
Loop Closed
32
RX A RX B TX A TX B
1 1
1 1
0 1
0 0
0 0
1 X
0 1
0 0
0 0
The A and B signal bit states on the DS-1 signal are as
follows:
0 = logic 0 is the DS-1 stream
1 = logic 1 is the DS-1 stream
X = value is not significant
Loop Open = phone on-hook
Loop Closed = phone off-hook
FXS+ Dual Voice Option Module
FXS+ Mode (Ground Start)
0 1 Idle
0 0 No Tip Gnd
1 1 Tip Gnd
0 1 Tip Gnd & No Ringing
1 1 Tip Gnd & Ringing
- - No Tip Gnd & No Ringing
- - Tip Gnd & No Ringing
0 1 Tip Gnd & Ringing
1 1 Tip Gnd & No Ringing
Table B-D
FXS+
2W Output
61200.080L1-1