Chapter 5 Setup Menu FCD-IPM Installation and Operation Manual
5-46 Interface Parameters Menu
On/off hook from the T1 On
Select this parameter to specify the receive mode for on/off hook signaling from T1
into FXO. The values are:
A bit When the received A bit signal from T1 equals 1 then off hook will be
indicated in the FXO interface
When the received A bit signal from T1 equals 0 then on hook will be
indicated in the FXO interface
A bit inverted When the received A bit signal from T1 equals 1 then on hook will be
indicated in the FXO interface
When the received A bit signal from T1 equals 0 then off hook will be
indicated in the FXO interface
B bit When the received B bit signal from T1 equals 1 then off hook will be
indicated in the FXO interface
When the received B bit signal from T1 equals 0 then on hook will be
indicated in the FXO interface
B bit inverted When the received B bit signal from T1 equals 1 then on hook will be
indicated in the FXO interface
When the received B bit signal from T1 equals 0 then off hook will be
indicated in the FXO interface.
Ring Detection to T1 On
Select this parameter to specify the ring detection signaling transmission mode
from FXO towards T1. The values are:
A bit For ring detection the A bit signaling will be set to 1 towards T1
For no ring detection the A bit signaling will be set to 0 towards T1
A bit inverted For ring detection the A bit signaling will be set to 0 towards T1
For no ring detection the A bit signaling will be set to 1 towards T1
B bit For ring detection the B bit signaling will be set to 1 towards T1
For no ring detection the B bit signaling will be set to 0 towards T1
B bit inverted For ring detection the B bit signaling will be set to 0 towards T1
For no ring detection the B bit signaling will be set to 1 towards T1.
Default ABCD to the T1
This parameter specifies the default signaling bits that are not used for ring
detection or for polarity (if Enabled). Those bits will be transmitted towards T1.
Polarity (polarity reversal, also known as Wink Start Reversal)
When polarity is configured as Enabled, the polarity signal is received from T1
either on the B bit (while the on/off hook from T1/E1 parameter is configured to
A bit or A bit inverted), or on the A bit (while the on/off hook from T1/E1 parameter
is configured to B bit or B bit inverted).