MlL-STD-1553B does not specify the type
of Connector used to interconnect
Twin BNC, TWBNC
Twin BNC style connectors are either 78 or 95 ohms and have one female and one male pin.
Note one style of TWBNC uses a two-stud bayonet locking mechanism [termination graphic], or a quick-connect [above].
The two panel mount [Jam-nut] connectors shown directly below use solder-cup [solder-pocket] wire connections.
The connector on the left is a quick-connect, the one of the right is a twist-lock, bayonet coupling connector.
The terms Panel-mount, Chassis-mount or Bulkhead-mount are used interchangeably on this site.
Note that the D-cutout is identical for both connector styles, or either connector could use the same mounting hole.
The Twin-axial termination plug shown below those is also a bayonet coupled connector
MIL-DTL-3655/22; Electrical Coaxial Connector Receptacle,(Series Twin, TWTNC, Bulkhead)
MIL-DTL-3655/14; Electrical Coaxial Connector Plug,(Series Twin, TWTNC), not shown
The twinaxial plug [slash sheet 14] mates with the twinaxial receptacle [slash sheet 22].
MIL-DTL-3655/23; Electrical Coaxial Connector Receptacle,(Series Twin, TWBNC, Bulkhead)
MIL-DTL-3655/15; Electrical Coaxial Connector Plug,(Series Twin, TWBNC), not shown
The twinaxial plug [slash sheet 15] mates with the twinaxial receptacle [slash sheet 23].
MIL-DTL-3655/16; Electrical Coaxial Connector Receptacle,(Series Twin, TWBNC), not shown
Also refer to the Dummy Load definition [Termination].
Twinax Connector Cut-away. [Cable end, Flange Mount Cable, Flange Mount Solder Cup]
Military documents refer to MIL-1553 as the Data Bus, when not directly calling out 1553.
The two cables below are specified by MIL-DTL-17 [a military document describing cable characteristics].
The standard covers both flexable & semirigid RF cable; with solid & semi-solid dielectric cores, with single, dual or twin inner conductors.
Two different specifications or slash sheets are shown below, /203 and /201, as stated the standard above those covers many different types.
The caption for the two cable drawing is basically the title of the slash sheet or detailed drawing.
MIL-C17/203; EMP Hardened Flexiable Double Shield Twinaxial 77 Ohm RF Cable, Data Bus
MIL-DTL-17/201; Flexiable Single Shield Twinaxial 77 Ohm RF Cable, Data Bus
A third cable could also be used MIL-C-17/202 [MIL-DTL-17/202].
Flexiable Double Shield Twinaxial 77 Ohm RF Cable, Data Bus [2 over-lapping shields, no dielectric separator]
Also see the description of RG22 Twinax Cable.
This site does not control any government document, and the military specifications listed may be withdrawn from circulation at any time.
In fact DOD detailed drawing are removed, with no replacement, all the time, although some times transferred to another organization.
Back to the main MIL-STD-1553 Interface bus description page. [Military-Standard-1553B]
MIL-DTL-83527; Rack and Panel connectors:
Connectors, Plug and Receptacle, Electrical, Rectangular Multiple Insert Type, Rack to Panel,
Environment Resisting, 150 Deg. C Total Continuous Operating Temperature, General Specification for.
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