Avaya S8700 Maintenance Manual page 1371

DS1-BD (DS1 Interface Circuit Pack)
One-Way Span Test (#1214)
This test is destructive.
The One-Way Span test allows 1-way span testing to and from remote test
equipment or another MultiVantage solution. This will test all circuitry and facilities
from the local TN767E DS1 board to the remote test equipment or other
MultiVantage solution.
The test is destructive and can only be initiated by a technician-demanded
test ds1-loop UUCSS one-way-span-test-begin command.
All trunks or ports on the DS1 Interface circuit pack must be busied out via the
system technician busyout board command before running the One-Way Span
test.
The One-Way Span test has the TN767E DS1 Interface circuit pack transmit a
framed 3-in-24 test pattern and attempt to receive and verify the pattern. If the
TN767E board receives a framed 3-in-24 test pattern sent from another
MultiVantage solution or test equipment at the far end of the DS1, it will begin
counting bit errors within the received pattern.
The status of the One-Way Span test will be available in the hardware error log via
Error Type #3902. Several distinct aux values will be used to give the user
information of the status of the test.
The list measurements ds1 summary command will display the length of time
the test has been running (Test Duration field) and number of bit errors
detected (Loopback/Span Test Bit-Error Count field). If the test pattern
is being sent cleanly over the span from the far end, the number of bit errors
should be very low. The Test Duration field will show 0 until the test pattern
is received from the far end. Upon receiving the test pattern, the board will begin
calculating the test duration and number of bit errors. The command will also
display the type of loop-back/span test executing (Test field), the type of pattern
generated for the loop-back/span test (Pattern field), and whether the pattern
(i.e., 3-in-24 Pattern) is synchronized (Synchronized field).
To end the test, enter the test ds1-loop UUCSS end-loopback/span-test
command or the release board command. Using the release board command
will restore all trunks or ports on the TN767E DS1 Interface circuit pack to the
in-service state.
555-233-143 Issue 1 May 2002 8-649