MIL-STD-188-154-SUP 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

CONTENTS

PARAGRAPH                                                                                                 PAGE

4.2.2.8  Cabling layout plans ...........................................................10

4.2.3  Criteria for facility equipment .......................................................10

4.2.3.1  Expansion ...........................................................................10

4.2.3.2  Standbys.............................................................................11

4.2.4  Grounding, bonding, and shielding ..............................................11

4.2.5  Electromagnetic compatibility.......................................................11

4.2.6  Equipment interfaces....................................................................11

4.2.7  Station power ...............................................................................11

5.  DETAILED REQUIREMENTS ........................................................................12

5.1  General..................................................................................................12

5.1.1  Automation ...................................................................................12

5.1.2  Access points ...............................................................................12

5.2  System interoperability ..........................................................................12

5.2.1  System interconnections ..............................................................12

5.2.2  Interfacing methods......................................................................12

5.2.2.1  Digital circuit interfacing .....................................................12

5.2.2.2  Analog circuit interfacing ....................................................13

5.2.2.3  Bit-stream interfacing..........................................................13

5.2.3  Tactical interfaces ........................................................................13

5.3  Facility circuit configurations .................................................................13

5.3.1  Digital circuits...............................................................................13

5.3.1.1  User connections ................................................................13

5.3.1.2  Interface equipment ............................................................14

5.3.1.3  Switches..............................................................................15

5.3.1.4  Multiplexers.........................................................................16

5.3.1.5  Media access......................................................................18

5.3.2  Analog (VF) circuits......................................................................19

5.3.2.1  User connections ................................................................19

5.3.2.2  Interface circuits..................................................................19

5.4  Centralized monitoring and control facilities..........................................20

5.5  Internal subsystems...............................................................................20

5.5.1  Distribution facilities .....................................................................21

5.5.1.1  Main distribution frame (MDF) ............................................21

5.5.1.2  Intermediate distribution frame (IDF) ..................................21

5.5.1.3  Combined distribution frame (CDF) ....................................21

5.5.1.4  Circuit concentration facility (CCF) .....................................21

5.5.2  Station timing equipment..............................................................22

5.5.3  Signaling supplies ........................................................................22

5.5.4  Orderwire circuits .........................................................................22

5.5.4.1  Link orderwire circuits.........................................................22

5.5.4.2  Express orderwire circuits...................................................22

5.5.4.3  System orderwire circuits....................................................22

5.5.5  Intercommunications systems ......................................................23

5.5.6  Alarm systems..............................................................................23 v