Environmental Testing

Transcription

1 Nebraska Center for Excellence in Electronics 4740 Discovery Drive Lincoln, NE Phone: NCEE (6233) Fax: Environmental Testing Company: Crystal Group 850 Kacena Road Hiawatha, IA Contact: Robert Graham Product/EUT: Ruggedized Rack-Mount 24 Port Network Switch Test Report No.: R Approved By: Aaron Steggs Environmental Test Engineer Report Date: 20 October 2015 Number of Pages: 26 The Nebraska Center for Excellence in Electronics (NCEE) authorizes the above named company to reproduce this report provided it is reproduced in its entirety for use by the company s employees only. Any use that a third party makes of this report, or any reliance on or decisions made based on it, are the responsibility of such third parties. NCEE accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this report. This report applies only to the items tested. This accredited test laboratory maintains A2LA accreditation to ISO/IEC for the specific test(s) listed in A2LA Certificate # and meets the relevant quality systems requirements of ISO The test(s) results included in this report, however, are not covered by this accreditation

2 Table of Contents 1.0 Summary of Test Results Description of Equipment Under Test (EUT) Ruggedized Rack-Mount 24 Port Network Switch Configuration As Tested Test Description & Results Standard Laboratory Conditions Date(s) of Testing Test Equipment Used Operating Vibration Test Test Description Test Results Representative Photographs Representative Vibration Plots Operating Shock Test Test Description Test Results Representative Photographs Representative Shock Plots Page 2 of 26

3 Table 1 Date Revision Notes 2015-Oct-20 Initial release Page 3 of 26

4 1.0 Summary of Test Results Table 2 Test Name Test Procedure/Standard Results Operating Vibration Test MIL-STD-810G, Method 514.6, Procedure I, Category 20, (Ground Mobile) Random Vibration Test using the Crystal Group Ground Compliant Mobile Vibration Profile (4.43 grms random-on-random vibration profile) Operating Shock Test MIL-STD-810G, Method 516.6, Procedure I, Figure & Table II, Functional Shock for Ground Equipment (this test is the same as MIL-STD-810G, Method 516.6, Procedure V, Figure & Table VII, Crash Hazard Shock for Flight Vehicle Equipment, except the test sample shall be operational during the application of the shock pulses) Compliant Test results shown in this table are only a summary of the test results described in this test report. Page 4 of 26

5 2.0 Description of Equipment Under Test (EUT) 2.1 Ruggedized Rack-Mount 24 Port Network Switch The Ruggedized Rack-Mount 24 Port Network Switch is a ruggedized network switch in an aluminum 1U rack-mount chassis Configuration As Tested For this testing project, the customer provided a Ruggedized Rack-Mount 24 Port Network Switch test sample (part/model number RCS ) with serial number Configuration information provided by Crystal Group is shown in Table 3 below. Table 3 The Ruggedized Rack-Mount 24 Port Network Switch test sample was tested in the configuration provided by the customer. NCEE Labs made no modifications, adjustments, or repairs to the Ruggedized Rack-Mount 24 Port Network Switch test sample prior to, during, or upon the completion of the testing documented herein. Page 5 of 26

6 3.0 Test Description & Results Standard Laboratory Conditions Laboratory temperature is maintained at 23 C ± 3 C. Laboratory humidity is maintained at 40% R.H. ± 15% R.H. Laboratory barometric pressure is maintained at 30 inches of mercury (in.hg) ± 0.5 inches of mercury (in.hg) Date(s) of Testing The testing documented herein was performed on October 13 th, Test Equipment Used The test equipment used for the performance of this test is shown below in Table 4. Table 4 Test Equipment Model Serial Date of Last Manufacturer Name Number Number Calibration Vibration Control System Vibration Research VR add9 May 22, 2015 Accelerometer PCB Piezotronics J353B Apr. 2, 2015 Page 6 of 26

7 3.1 Operating Vibration Test Test Description For the X-axis & the Y-axis, the customer s test fixture was bolted to the dynamics test system slip table, which was bolted to the dynamics test system exciter via an interface adapter. For the Z-axis, the customer s test fixture was bolted to a head expander plate, which was bolted directly to the dynamics test system exciter. For all test axes the test sample was installed in the customer s test fixture. The dynamics control signal for the X-axis and the Y-axis was achieved with the use of one control accelerometer, which was mounted near the center of the left side of the customer s test fixture. The dynamics control signal for the Z-axis was achieved with the use of one control accelerometer, which was mounted near the middle of the left side of the customer s test fixture. Supplementary equipment necessary to operate and/or monitor the test sample was placed on a table nearby the dynamics test system, and connected to the test sample. The test sample was placed into its operating state by supplying power to the test sample and allowing the switch to complete its boot-process. The switch was connected to two Crystal servers by fourteen RJ-45 cables for each server. The servers stressed the switch by running a network stress test supplied by Crystal Group. The vibration controller was programmed with a base random vibration profile listed in Table 5 on the next page. The 4 random-on-random tones superimposed on the base random vibration profile are listed in Table 6 on the next page. The operating test sample was exposed to the specified random-on-random vibration testing for a duration of 1 hour in each test axis. In order to prevent overheating of the dynamics test system, the vibration exposure was paused periodically. Page 7 of 26

8 3.1.1 Test Description (continued from previous page) Prior to the start of this testing, periodically during this testing, and upon the completion of this testing, the test sample was monitored for proper operation by visually inspecting the computer monitors to verify that the switch did not lose power or reboot, lock up, lose ability to negotiate link on an Ethernet port, have excessive packet loss, or receive any error messages. Table 5 Frequency Acceleration Spectral Density 10 Hz g²/hz 15 Hz g²/hz 15 Hz g²/hz 97 Hz g²/hz 112 Hz g²/hz 150 Hz g²/hz 500 Hz g²/hz 2,000 Hz g²/hz Table 6 Start Frequency End Frequency Acceleration Spectral Density Bandwidth 97 Hz 112 Hz 0.6 g²/hz 8 Hz 188 Hz 224 Hz 0.3 g²/hz 18 Hz 282 Hz 336 Hz 0.05 g²/hz 27 Hz 376 Hz 448 Hz 0.03 g²/hz 36 Hz Page 8 of 26

9 3.1.2 Test Results The Ruggedized Rack-Mount 24 Port Network Switch test sample with serial number was subjected to the Operating Vibration Test described in of this test report. The test sample was monitored for proper operation prior to the start of this test, during this test, and upon the completion of each axis of this test. No operational issues were observed prior to the performance of this test or upon the completion of each axis of this test. A visual and auditory inspection was performed upon the completion of this test. After completion of these tests, one of the power supplies was removed and one of the alignment pins was sheared off. No operational issues were noted Representative Photographs Representative photographs of this test begin on the next page. Page 9 of 26

10 Photograph No. 1 - Operating Vibration Test X-axis Photograph No. 2 - Operating Vibration Test X-axis Page 10 of 26

11 Photograph No. 3 - Operating Vibration Test X-axis Photograph No. 4 - Operating Vibration Test Y-axis Page 11 of 26

12 Photograph No. 5 - Operating Vibration Test Y-axis Photograph No. 6- Operating Vibration Test Y-axis Page 12 of 26

13 Photograph No. 7 - Operating Vibration Test Z-axis Photograph No. 8 - Operating Vibration Test Z-axis Page 13 of 26

14 Photograph No. 9 - Operating Vibration Test Z-axis Page 14 of 26

15 3.1.4 Representative Vibration Plots Representative vibration plots recorded during the performance of this test is shown on the next page. Page 15 of 26

16 Operating Vibration Test X-axis Acceleration Spectral Density 1x10 0 Acceleration Spectral Density (G²/Hz) -1 1x10-2 1x10 1x10-3 Control Demand -4 1x Frequency (Hz) Page 16 of 26

17 Operating Vibration Test Y-axis Acceleration Spectral Density 1x10 0 Acceleration Spectral Density (G²/Hz) -1 1x10-2 1x10 1x10-3 Control Demand -4 1x Frequency (Hz) Page 17 of 26

18 Operating Vibration Test Z-axis Acceleration Spectral Density 1x10 0 Acceleration Spectral Density (G²/Hz) -1 1x10-2 1x10 1x10-3 Control Demand -4 1x Frequency (Hz) Page 18 of 26

19 3.2 Operating Shock Test Test Description For the X-axis & the Y-axis, the customer s test fixture was bolted to the dynamics test system slip table, which was bolted to the dynamics test system exciter via an interface adapter. For the Z-axis, the customer s test fixture was bolted to a head expander plate, which was bolted directly to the dynamics test system exciter. For all test axes the test sample was installed in the customer s test fixture. The dynamics control signal for the X-axis and the Y-axis was achieved with the use of one control accelerometer, which was mounted near the center of the left side of the customer s test fixture. The dynamics control signal for the Z-axis was achieved with the use of one control accelerometer, which was mounted near the middle of the left side of the customer s test fixture. Supplementary equipment necessary to operate and/or monitor the test sample was placed on a table nearby the dynamics test system, and connected to the test sample. The test sample was placed into its operating state by supplying power to the test sample and allowing the switch to complete its boot-process. The switch was connected to two Crystal servers by fourteen RJ-45 cables for each server. The servers stressed the switch by running a network stress test supplied by Crystal Group. The operating test sample was exposed to 3 shock pulses in the positive polarity and 3 shock pulses in the negative polarity of each test axis. Prior to the start of this testing, periodically during this testing, and upon the completion of this testing, the test sample was monitored for proper operation by visually inspecting the computer monitors to verify that the switch did not lose power or reboot, lock up, lose ability to negotiate link on an Ethernet port, have excessive packet loss, or receive any error messages. Page 19 of 26

20 3.2.2 Test Results The Ruggedized Rack-Mount 24 Port Network Switch test sample with serial number was subjected to the Operating Shock Test described in of this test report. The test sample was monitored for proper operation prior to the start of this test and upon the completion of each axis of this test. No operational issues were observed prior to the performance of this test or upon the completion of each axis of this test. A visual and auditory inspection was performed upon the completion of this test. After completion of these tests, one of the power supplies was removed and one of the alignment pins was sheared off. No operational issues were noted Representative Photographs Representative photographs of this test are the same as the representative photographs of the Operating Vibration Test in of this test report Representative Shock Plots Representative shock plots of this test are shown on the next page. Page 20 of 26

21 80 Operating Shock Test X-axis Positive Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 21 of 26

22 60 Operating Shock Test X-axis Negative Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 22 of 26

23 80 Operating Shock Test Y-axis Positive Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 23 of 26

24 60 Operating Shock Test Y-axis Negative Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 24 of 26

25 80 Operating Shock Test Z-axis Positive Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 25 of 26

26 60 Operating Shock Test Z-axis Negative Polarity Acceleration Acceleration (G) Control Demand Time (sec) Page 26 of 26