scope:

The purpose of this document is to establish, in the most economical manner, interoperability and performance parameters necessary to ensure interoperability among long haul and tactical digital facsimile equipment. The technical parameters established by this document represent a set of minimum interoperability and performance characteristics, which may be exceeded to satisfy specific requirements.

It is not the purpose of this document to serve as a stand-alone, comprehensive reference containing all technical parameters and other details required for the design of new equipment or the preparation of specifications. Therefore, parameters for such items as size and weight limitations, connectors, cable assemblies, or power supplies are not contained in this document. These parameters and other design details have to be established, based on specific requirements, and have to be carefully tailored in accordance with the policies of Department of Defense Instruction (DODI) 5000.2, Part 10c.

It is not the purpose of this document to inhibit advances in communications technology. Such advances are facilitated by not specifying the technology that should be used in the design and development of digital facsimile systems to meet the required standards.

This standard provides technical interoperability and performance parameters for two forms of digital facsimile equipment. The first form is designated Type I and/or Type II, which are interoperable with Type I and Type II NATO tactical digital facsimile equipment respectively, and provide a digital output signal. The second form is designated CCITT Group 3 facsimile equipment in accordance with Federal Information Processing Standard (FIPS) 147 and FIPS 148, and provides an analog output signal.

This standard is mandatory within the Department of Defense (DOD) in the design, development, and acquisition of facsimile equipment. It is not intended that existing equipment and systems be immediately converted to comply with the provisions of this standard. New equipment and systems and those undergoing major modification or rehabilitation shall also conform to this standard.

Application of this standard shall be tailored in accordance with DODI 5000.2. Based on identified requirements, the following applies:

∗(1) Facsimile equipment designated for only digital output shall, at a minimum, comply with Type I and/or Type II requirements.

∗(2) Facsimile equipment designated for only analog output shall, at a minimum, comply with CCITT Group 3 (FIPS 147 and FIPS 148) requirements.

∗(3) Facsimile equipment designated for both digital and analog output shall, at a minimum, comply with both Type I and/or Type II (See sections 4 and 5) and CCITT Group 3 (FIPS 147 and FIPS 148) requirements.

∗(4) When a CCITT Group 3 analog output facsimile requires interface with a digital output facsimile, that interface shall, at a minimum, comply with the Type I and/or Type II requirements.

The parameters and other requirements specified in this document are mandatory system standards if the word "shall" is used in connection with the parameter value or requirement under consideration. Nonmandatory design objectives are indicated in parentheses after a standardized parameter value or by the word "should" in connection with the parameter value or requirement under consideration. For a definition of the terms "system standard" and "design objective" see FED-STD-1037.