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304 Chapter 11
E1 Analyzer
Making E1 Measurements
E1 Analyzer
— Loss of Frame Alarm - Disables the frame pattern.
— FAS Distant Alarm - Sets the Remote Alarm Indicator bit in timeslot 0 of
the odd frames to simulate an FAS distant alarm.
— RAI Remote Alarm Indicator - See FAS Distant Alarm (above).
— MFAS Distant Alarm - Sets every sixth bit of each timeslot 16 in the zero
frame to simulate an MFAS distant alarm.
— AIS Alarm - Alarm Indication Signal (AIS) sends an unframed, all 1s
pattern.
— TS-16 AIS Alarm - Sets all bits in timeslot 16.
— BPV Error - The test set forces a single bipolar violation error with each
press of the Inject button.
— FAS Error - Causes an error in the frame alignment signal.
— MFAS Error - Causes an error in the multi-frame alignment signal.
— CRC-4 Error - Causes the test set to generate a CRC error. Note that this is
possible only when CRC-4 frame modes are selected.
— FEB (E-Bit) Error - Causes the test set to set the E bit on odd frames.
— Pattern Error - The test set forces an error in the transmitted pattern with
each press of the Inject button.
• Timeslot: Applicable only in the Channel BERT mode. Sets the active channel
to be tested for BERT.
• Fill Data: When performing Channel BERT testing this configures the source of
data transmitted in the unused slots. For drop-and-insert testing, this field is
typically set to Secondary Rx.
— All 1's - Set this mode to maintain a sufficient 1's density on the unused
channels during testing. All 1's are typically transmitted on unused channels
in live E1 circuits.
— Idle - Set this mode to accommodate specific troubleshooting such as to
exercise a circuit designed for HDB3.
— Primary Rx - Fills the unused slots with Primary Rx data.
— Secondary Rx - Fills the unused slots with Secondary Rx data.
• Inject: Causes the error or condition that is currently displayed on the button to
occur. Some selections cause a single event to occur, while others maintain a
constant state. The text on the button changes to reflect the appropriate action.