Maxim Integrated 73M1822/73M1922 Control Module - Manual (Page 17)

UG_1x22_053 73M1822/73M1922 Control Module User Guide
Rev. 1.0 17
5.2.4 M1X22_NOPOH_DETECT
This event is generated when a parallel phone goes on hook.
Parameters
Data Type Name Description
unsigned int event_id M1X22_NOPOH_DETECT .
unsigned int channel_id Channel ID.
unsigned int event_cnt Number of events that remain in the queue.
unsigned int event_data1 N/A.
unsigned int event_data2 N/A.
unsigned int event_data3 N/A.
unsigned int event_data4 N/A.
5.2.5 M1X22_POLARITY_CHG
This event is generated when there is a voltage reversal occurs on the line.
Parameters
Data Type Name Description
unsigned int event_id M1X22_POLARITY_CHG .
unsigned int channel_id Channel ID.
unsigned int event_cnt Number of events that remain in the queue.
unsigned int event_data1 N/A.
unsigned int event_data2 N/A.
unsigned int event_data3 N/A.
unsigned int event_data4 N/A.
5.2.6 M1X22_RING_DETECT
This event is generated at the beginning of the ring burst.
Parameters
Data Type Name Description
unsigned int event_id M1X22_RING_DETECT .
unsigned int channel_id Channel ID.
unsigned int event_cnt Number of events that remain in the queue.
unsigned int event_data1 Ring burst frequency (in Hz)
unsigned int event_data2 N/A.
unsigned int event_data3 N/A.
unsigned int event_data4 N/A.