ZyXEL Communications Multi-service Access Platform MSAP2000 - Manual (Page 220)

9. Network Management System (NMS) Functions
MSAP2000 Technical Manual V3.0 9-6
9.5. Maintenance
MSAP2000 supports the following test functions:
„ Analog Module Test
„ Subscriber Line Test
„ LED
Test
„ Loopback
„ Protection
Switch
„ Pattern Test: 211, 215, fix pattern
Analog Module
Test
MSAP2000 supports Telephone Line Malfunction Testing.
Connection to LCT and OptiCore
™ will enable Stage 1, Stage 2, and
Stage 3 testing (as shown in the diagram below), to assist Operators
to swiftly pinpoint problem sources, and to reduce the cost and time
spent on line maintenance.
„ Stage 1 Dial Tone Testing
„ Stage 2 Equipment Circuit Loopback Testing, or Channel Testing
„ Stage 3 Last Miles Testing
Stage 1 Test Items:
„ Dial Tone Detection Testing
„ Dial Tone Disconnection Testing
„ COT Loop Current Detection Testing
„ COT Voltage Feedback Testing
„ Pulse Metering Detection Test for Pay phones
Stage 2 Test Items:
„ Channel Testing
Stage 3 Test Items:
„ Last Miles Loopback Testing
- AC Voltage
- DC Voltage
- Loop Resistance
- Isolated Resistance
- Capacity
„ DTMF/Dial Pulse Testing
„ Line Testing: To be used when COT operators need co-work on
line testing with field operators
„ Howling sound alerts are issued when the telephone handset has
been displaced.
„ Enforced Ringing/ Ring Subscriber