DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-657DS1-FAC (DS1 Facility)
9
Every part of this test is executed under firmware control and the result is sent
back to the maintenance software. The test is executed by sending digital data
through every DS1 channel on this DS1 facility.
This test is executed via the
test ds1-facility UUCSSf external-loopback
command. It is not part of the Long Test Sequence because it requires
modifications to the physical connectivity of the DS1 facility.
If there is only one DS1 facility available, system will not allow the last facility to
be busied out. In that case, the DS1 CONV circuit pack must be busied out
before executing this test.
On a Standard Reliability and High Reliability System (no PNC duplication), if
there is only one DS1 facility available, then this test can only be executed at the
end-point which is closer to the SPE relative to the neighbor DS1 CONV circuit
pack because of its impacts on the system control links. On a Critical Reliability
System (PNC Duplication), or when there are multiple DS1 facilities, the test can
be executed at any DS1 CONV circuit pack.
If the test passes on a TN1654 DS1 facility, the
round trip delay time
will be
displayed in milliseconds in the
Error Code
field. The round trip delay time is
defined as the length of time in milliseconds it takes for the firmware to receive
the test pattern after it has been sent. This measurement is taken on the last DS1
channel tested.
Figure 9-31. Loopback Points for Test #799
LB 2LB 1
DS1 Facility
DS1CONV
A
CSU A
Test starts here
CSU B
DS1CONV
B
