MIL-STD-188-154 Subsystem, Equipment, And Interface Standards For Common Long Haul And Tactical Telecommunications Control FacilitiesThis standard establishes physical and functional interface requirements for long haul and tactical telecommunications control facilities formerly technical control facilities in the Department of Defense DoD. As used in this standard, the term telecommunications control facility TCF includes patch and test facilities PTFs and interfaces to locations that provide centralized monitoring and control functions for other telecommunication locations.

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MIL-STD-188-154A

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4.2.2.3 Test equipment. Where practical, all test equipment shall employ digital readout displays and be capable of providing a serial or parallel data communications interface allowing remote control and remote reporting of test results. Serial data communication interfaces shall conform to EIA/TIA-530. Parallel interfaces shall conform to ANSI/IEEE 488-1987. For those cases

where the quantity being measured is continuously variable in nature, conven- tional scale and pointer instruments may be provided. Where practical, automated performance monitoring equipment and measurement instruments with recording capability shall be used.

4.2.2.4 Cabling. Signal, clock, and control cables employed in the TCF shall have a minimum of one overall shield per cable. Power distribution lines shall not be contained in the same cable as lines carrying information signals. TEMPEST test results or unique equipment or system characteristics may dictate additional special cable requirements.

4.2.2.5 Cabinet cabling. Cable clamps and ties shall be used to bundle the cables and attach them to cabinet frame members. The cabling shall be installed to permit all doors and sliding units to operate freely without binding, scraping, or in any way wearing or damaging the cables.

4.2.2.6 Interconnecting cables. All cables entering or leaving equipment cabinets shall go through the top or bottom of the cabinets. In instances in

which cabinets are butted together (either with or without side panels), cables may be passed in a bundle through the sides of the cabinets. All cables entering or leaving cabinets shall be numbered. The number shall be clearly marked on

or attached to each end of all cables.

4.2.2.7 Connectorized cables. Connectorized cables shall be used to the fullest extent practical.

4.2.2.8 Cabling layout plans. The cabling layout plan shall allow for routing of signal, power, and grounding cables between the various equipment cabinets, patch facilities, distribution frames, and power plant equipment. Cables shall be routed in overhead or sub-floor, open or enclosed, raceways, racks, or ducts.

4.2.3 Criteria for facility equipment. Facility plans shall support current circuit installations and all identified programmed requirements.

4.2.3.1 Expansion. Expansion capability shall be provided for long haul

TCFs. Expansion rates should be based on all determinable factors, including:

a. Life expectancy (station and equipment).

b. Circuit growth.

c. Technological forecasts.