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Appendix A, Acceptance Test Procedure
Verify Data Throughput
DS1 to STS-1 "Head to Head" Test (Method #2)
This test tests one DS1 channel at a time, using a DS1 test set at the DSX-1 cross-connect, and an STS-1
test set at the STS-1 cross connect.
Equipment Required:
1. At the STS-1 cross-connect bay, connect the STS-1 test set to the STS-1 coming from the MX2800.
Configure the STS-1 test set for the appropriate line build-out option (LBO). Configure the STS-1 test
set to drop out DS1 #1 and to run a BERT on it in ESF/B8ZS mode.
2. At the DSX-1 cross-connect bay, connect the DS1 test set to the first DS1 channel of the MX2800.
Configure the test set for the same BERT pattern as the STS-1 test set is sending.
3. The DS1 #1 LED will turn solid green. All other unterminated DS1 port LEDs will be red. Data will
pass error free between the STS-1 test set and the DS1 test set.
4. Repeat for DS1 channels 2-28 by moving the DSX-1 test cables, and reconfiguring the STS-1 test set
to drop out the appropriate DS1 channel under test. Ensure that the LED for the DS1 under test turns
green.
5. Leave this test set-up in place, as it will be used during the redundancy testing in the Controller Card
Redundancy section of this appendix.
If problems are encountered, referring to
Manual can help in troubleshooting and isolating where the problem lies.
DS1 to STS-1 (hard) Loopback (Method #3)
This test requires minimal test equipment, and only tests one DS1 at a time.
Equipment Required:
1. At the STS-1 cross-connect bay, use a test cord to loop the STS-1 from the MX2800 back on itself.
2. At the DSX-1 cross-connect bay, insert the TX output of the DS1 test set to the DS1 INPUT of the first
channel of the MX2800. Connect the RX input of the test set to the OUTPUT of the first DS1 channel
of the MX2800.
3. Set the DS1 test set for ESF/B8ZS and the desired BERT pattern.
4. The DS1 #1 LED will turn solid green. All other unterminated DS1 port LEDs will be red. Data will
pass error free.
5. Repeat the above procedure for DS1 channels 2-28. Ensure that the LED for the DS1 under test turns
green.
6. Leave this test set-up in place, as it will be used during the redundancy testing in the Controller Card
Redundancy section of this appendix.
If problems are encountered, referring to
Manual can help in troubleshooting and isolating where the problem lies.
A-6
1 – DS1 Test Set capable of running a BERT test
1 – STS-1 Test Set capable of accessing and running a BERT on a single DS1
Section 4, Status
1 – DS1 Test Set capable of running a BERT test
1 – STS-1 DSX Test Cord
Section 4, Status
MX2800 STS-1 User Manual
and
Section 5, Statistics
and
Section 5, Statistics
in the MX2800 User
in the MX2800 User
61204659L1-1A
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