Development Test II of Time Division Digital Multiplexer TD-1069( )/G

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Abstract:

The US Army Electronic Proving Ground conducted a DT II of Time Division Digital Multiplexer TD-1069 to determine to what extent it meets requirements of the development specification EL-CP0138-0001A and to evaluate safety, reliability, availability, and maintainability. Findings revealed that the technical performance of the TD-1069 is unsatisfactory due to power supply failures during humidity cycling, lack of a tool to remove connector hex nuts, difficulty in using repair parts list, and marginal susceptibility to humidity, salf-fog, and fungus. The test item was safe to operate and maintain except for sharp corners and edges, exposed voltages in power supply module, and lack of warning labels on printed circuit boards. Human factors characteristics were satisfactory except for improper color on display panel, difficulty in installingremoving cables in shelter-mounted configuration, and inaccessibility of the channel assignment switch. The reliability, availability, and maintainability characteristics of the test item were satisfactory. Recommend the deficiencies and as many shortcomings as feasible be corrected.

Author(s):
Bruce, Lew
Author Organization(s):
ARMY ELECTRONIC PROVING GROUND FORT HUACHUCA AZ
Descriptive Note:
Final rept. Nov 1975-Nov 1976
Pagination:
0192

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
USAEPG-FR-923
Task Number(s):
35
Project Number(s):
1X664701D487
Monitor Series:
TECOM
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_4.3_Maintain; JCA_5.3_Planning; JCA_4.7.2_Installation Services; JCA_4.7_Base and Installations Support; JCA_4.3.1_Depot Maintenance; JCA_4.3.2_Field Maintenance; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_4.1_Deployment and Distribution; JCA_JCA_4.1.2_Sustain the Force; JCA_5.2_Understand; JCA_5.4.3_Establish Rule Sets; JCA_5.4_Decide; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2.5_Lessons Learned; JCA_2.2.1_Signals Collection
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*TIME DIVISION MULTIPLEXING, DIGITAL SYSTEMS, MAINTAINABILITY, PULSE CODE MODULATION, RELIABILITY(ELECTRONICS), TELETYPEWRITERS
Field(s)/Group(s):
Electrical and Electronic Equipment, Non-Radio Communications
Keyword(s):
PE64701A
Report Date:
1976 Nov 01