ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 156)

7. Product Specification
MSAP2000 Technical Manual V3.0 7-49
7.18. Foreign Exchange Office Payphone Module (FXO-P)
Overview
The Foreign Exchange Office Payphone module (FXO-P) provides
functions which are similar to the FXO Module. Their difference is
that the FXO-P Module supports billing information such as battery
reversal or metering pulse detection, so that payphones can keep
counting of charge fees during the conversation period.
Features
And
Benefits
„ Panel LEDS indicate status, faults, alarms, and network
connections.
„ Loop status detection and Signaling exchange
„ A-law or u-law compounding
„ Data Access Arrangement functions
„ Alarm and Fault monitoring and reporting
„ Timeslot assignment for Voice Services
„ Use of non-volatile memory devices for performance data storage
Function Diagram
Application
FXO-P is used in the configuration that payphone service is required
and the interface to switch is 2-wire analog interface.
OIM/
SM1/
SM4
FXS-P
FXS
MLTM
MPM
Test Bus
OIM/
SM1/
SM4
FXO-P
FXO
MLTM
MPM
PSTN Switch
Test Bus