3M D Ribbon Connectors, Wiremount Socket, Metal Faced, 3549-2002 These are the same shape and size as HPIB/GPIB interface connectors.

• Back mount application allows grounding directly to cabinet
• Uses standard hardware
• Accepts 26-28 AWG in .050-inch flat cable or discrete wire
• Contact design efficiency enables multiple insertion/withdrawals
• Accepts .050-inch round, flat or jacketed cable
• RoHS compliant

Characteristics
Conductor Accommodation:  26 & 28 AWG Solid or Stranded 
Contact Material:  Copper Alloy 
Contact Termination Area Plating:  None 
Contact Underplating:  100 µ" [2.54 µm] Nickel 
Contact Wiping Area Plating:  30 µ" [0.76 µm] Gold 
Current Rating:  1 Ampere 
EU RoHS Compliant:  Yes 
Insulation Color:  Gray 
Insulation Flammability Rating:  UL 94V-0 
Insulation Material:  Glass Filled Polyester (PBT) 
Insulation Resistance:  >1 X 109 Ohms @ 500 Vdc 
Interface Grid:  .085" 
Interface Style:  Delta Ribbon Socket 
Markings:  3M Logo, Part Identification Number 
Mounting Option:  Mounting Flanges - 4-40 Threaded Insert 
Non-Operating Temperature:   -55 to 105 Degree Celsius 
Number of Contact Rows:  2 
Number of Contacts:  24 
Pitch:  .050 Inch 
Primary Trademark Name:  3M 
Separable:  Yes 
Shell Material:  Steel 
Shell Plating:  Bright Nickel 
Shield:  Yes 
Strain Relief Type:  Stainless Steel - .012 [0.30] Thick 
Termination Method:  Insulation Displacement 
Termination Style:  Multiple Wires 
Withstanding Voltage:  1000 Vrms at Sea Level