Input Condition
Ring open, loop open
Ring ground, loop open
Ring open, loop closed
Loop open
Loop closed
Input Condition
Loop open
Loop closed
Loop open
Loop open
Loop closed
Copyright GE Multilin Inc. 2002
FXS MODE
Signaling State
Transmit
A B
0 1
0 0
1 1
*
*
*
*
0 1
1 1
Table 21: Signaling State – FXS Mode
PLAR MODE
Signaling State
Transmit
A B
0 0
1 1
*
*
0 0
1 1
Table 22: Signaling State – PLAR Mode
342-86400-445PS
Issue 4.0
October 2006
Page 77
Output Condition
Receive
A B
*
*
*
*
*
*
1 1
Tip open, no ringing
0 1
Tip ground, no ringing
0 0
Tip ground, ringing
0 0
Tip ground, no ringing
Output Condition
Receive
A B
*
*
*
*
0
*
1
*
1
*
No ringing
Ringing
No ringing