Interpretation ID: nht87-3.20
TYPE: INTERPRETATION-NHTSA
DATE: NOVEMBER 3, 1987
FROM: HUNT, BILL -- PROJECT ENGINEER, HY-GAIN DIVISION-TELEX COMMUNICATION, INC
TO: ERICA Z. JONES -- NHTSA CHIEF COUNSEL
TITLE: NONE
ATTACHMT: 12/19/88 letter from Erika Z. Jones to Bill Whiteside (Harris Corp.)
TEXT: I am writing to you concerning the interpretation of CFR 567 and 568 regarding ultimate responsibility for DOT certification.
I have spoken with Joan Tilghmam concerning this. She suggested I write to you explaining the circumstances. Please review the enclosed information. I will call soon to discuss this further.
Thank you.
TELEX COMMUNICATIONS, INC.
The parties:
Telex Communications - Trailer manufacturer
Customer: Company XYZ
Company ABC - Generator Manufacturer & Installer
Customer: Company XYZ
Company DEF - Radio Equipment Manufacturer & Installer
Customer: Company XYZ
Company XYZ - Buyer of trailer & additional installed equipment.
TELEX
ABC
DEF
TELEX COMMUNICATIONS, INC., Lincoln, NE.
Manufactures a trailer with running gear, brakes, lights, VTN, etc.
Total vehicle wt = 8000/9000#
Axle rating - 9000# ea., 18,000# total Telex work is complete.
Telex' Customer, XYZ has permanent components added to trailer by two other sub contractors (after delivery from Telex). These are items such as generators (1) & communications equipment (2).
Telex is aware of general nature and weight and location of added equipment. These factors have been used to determine trailer design.
However, Telex does not have any contractual relationship with the other subcontractors. Telex does not install and is not responsible for the installation of the added equipment.
The problem: Certification of trailer.
Telex' position:
Telex is an incomplete vehicle manufacturer and should provide documentation as stipulated in CFR 568.4a.
XYZ's position:
Telex is an incomplete vehicle manufacturer that assumes legal responsibility as in CFR 568.7a. and is responsible for final vehicle certification per 567.5e.
INTERFACE CONTROL DOCUMENT
FOR
LOS SUBSYSTEM ANTENNA TRAILERS
ESD 21410
APPROVED:
R. B. Strock, LOS Subsystem Mechanical Engineer, DATE 2/11/88;
G. M. Turner, LOS Subsystem Manager, DATE 2/10/88;
B.A. Dougherty, Quality Assurance Engineer, DATE 2/12/88;
R.E. Becerra, LOS Subsystem SPO, DATE 2/12/88
REVISION
REVISION RECORD LEVEL APPROVED ACKNOWLEDGEMENT REVISION DATE BUYER SELLER A SELLER B SELLER CFirst Release 12/11/87 ( Illegible Rev A 2/10/88 Word)
By acknowledging this document, a subcontractor agrees that the document has been reviewed and recognizes that the requirements contained herein have been imposed. TABLE OF CONTENTS Paragraph Title Page 1.0 SCOPE 1 2.0 APPLICABLE DOCUMENTS 1 3.0 REQUIREMENTS 2 3.1 General Requirements 2 3.2 Mechanical Requirements 2 3.2.1 Mechanical Interfaces 2 3.2.1.1 Antenna Trailer - Configuration and Outline Dimensions 2 3.2.1.2 Equipment Mounting Interfaces 2 3.2.1.3 Equipment Envelopes and Mounting Locations 3 3.2.1.4 Fuel Tank Interfaces 5 3.2.1.5 Connector Locations 63.2.1.6 Integrated Antenna Trailer - Weight and Center of Gravity 10 3.3 Electrical Interfaces 12 3.3.1 Contingency Van Configuration 17 3.3.1.1 Mobile Antenna Tower Interfaces 17 3.3.1.2 Contingency Van Interfaces 17 3.3.1.3 Mobile Power Subsystem Interfaces 22 3.3.2 Repeater/RIU Configuration 24 3.3.2.1 Mobile Antenna Tower Interfaces 24 3.3.2.2 Electronics Enclosure Interfaces 25 3.3.2.3 Mobile Power Subsystem 26 Appendix Mechanical Drawings A LIST OF ILLUSTRATIONS Figure Title Page 3.2.1.1.1 Antenna Trailer Outline Dimensions Appendix CV Configuration as Delivered from Subcontractor A A 3.2.1.1.2 Antenna Trailer Outline Dimensions Appendix Repeater/RIU Configuration as Delivered from Subcontractor A. A 3.2.1.2.1 Antenna Trailer Frame Appen. A3.2.1.2.2 Mobile Power Subsystem and Electronic Enclosure Mounting Holes Appen. A3.2.1.3.1 Equipment Envelopes and Mounting Locations - CV Configuration Appen. A3.2.1.3.2 Equipment Envelopes and Mounting Locations - Repeater Configuration Appen. A3.2.1.3.3 Equipment Envelopes and Mounting Locations - RIU Configuration Appen. A 3.2.1.4 Fuel Tank Cluster Plate Locations Appen. A3.2.1.5.1 RIU and Repeater Enclosure Power and Signal Entry Panel Locations 8 3.2.1.5.2 Antenna Trailer Power and Control I/O 9 3.3.1 Interconnection Diagram Contingency Van Configuration 14 3.3.2 Interconnection Diagram, Repeater/RIU Configuration 16 LIST OF TABLES Table Title Page 3.2.1.3.1 CV Configuration 3 3.2.1.3.2 Repeater Configuration 3 3.2.1.3.3 RIU Configuration 4 3.2.1.3.4 Ancillary CFE - CV Configuration 5 3.2.1.3.5 Ancillary CFE - Repeater/RIU Configuration 5 3.2.1.5 Power Subsystem Connector Locations 6 3.2.1.6.1 CV Trailer Weight and CG Summary 10 3.2.1.6.2 Repeater Trailer Weight and CG Summary 11 3.2.1.6.3 RIU Trailer Weight and CG Summary 11 3.3.1 Interconnection Cables - Contingency Van Configuration 12 3.3.2 Interconnection Cables - Repeater/RIU Configuration 15 3.3.1.2 Pin Assignments - Remote Control and Monitor 20
(Document omitted here.)