FCD-IPM Installation and Operation Manual Chapter 5 Setup Menu
Interface Parameters Menu 5-61
A bit inverted When the received A bit signal from E1 equals 1 then on hook will be
indicated in the FXO interface
When the received A bit signal from E1 equals 0 then off hook will be
indicated in the FXO interface
B bit When the received B bit signal from E1 equals 1 then off hook will be
indicated in the FXO interface
When the received B bit signal from E1 equals 0 then on hook will be
indicated in the FXO interface
B bit inverted When the received B bit signal from E1 equals 1 then on hook will be
indicated in the FXO interface
When the received B bit signal from E1 equals 0 then off hook will be
indicated in the FXO interface.
Ring Detection to E1 on
Select this parameter to specify the ring detection signaling transmission mode
from FXO towards E1. The values are:
A bit For ring detection the A bit signaling will be set to 1 towards E1
For no ring detection the A bit signaling will be set to 0 towards E1
A bit inverted For ring detection the A bit signaling will be set to 0 towards E1
For no ring detection the A bit signaling will be set to 1 towards E1
B bit For ring detection the B bit signaling will be set to 1 towards E1
For no ring detection the B bit signaling will be set to 0 towards E1
B bit inverted For ring detection the B bit signaling will be set to 0 towards E1
For no ring detection the B bit signaling will be set to 1 towards E1.
Default ABCD to the E1
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 E1.
Polarity (polarity reversal, also known as Wink Start Reversal)
When polarity is configured as Enabled, the polarity signal is received from E1
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).
Signaling Feedback
This parameter is set to:
Enabled feedback of the on/off hook signaling that was received from E1 is
transmitted back to E1
Disabled feedback of the on/off hook signaling that was received from E1 is not
transmitted back to E1.
Out of Service Method
This parameter specifies the on/off hook signaling in FXO when an Out of Service
condition is indicated in the E1 link. The values are: