NI Switch Mating Connectors for Custom Solutions or Cables


If you are trying to create a custom Switch cable, create a custom fixture or breakout, modify an existing cable, repair or replace the connector on your cable or printed circuit board (PCB), this document provides descriptions, part numbers, and vendor information to achieve these tasks.


Using this Switch Cable and Accessory Guide

This guide is intended to cover connectors and backshells designed for use with NI Switch devices. It does not explicitly cover other NI product families such as DAQ, HSDIO, C Series, or reconfigurable I/O (formerly R Series), although some models may use similar or the same parts. It also does not cover legacy or End of Life (EOL) parts or products.


Mating Connectors and Backshells with Part Numbers

The table below contains a list of the connectors referenced that are found on the most popular NI Switch products. This is not intended to be a complete nor comprehensive list of all NI Switch products. Similar cables and connectors may be used with other NI products, and are not included here.  Refer to the Glossary for any questions regarding connector terminology. .

See the table below or the product manual for your product for more information on what connector is featured on your device. Additionally, NI Dimensional Drawings contain drawings for many connectors and the devices, modules, cables and accessories they are used on.

Caution: You must install mating connectors according to local safety codes and standards and according to the specifications provided by the manufacturer. You are responsible for verifying the safety compliance of third-party connectors and their usage according to the relevant standard(s), including UL and CSA in North America and IEC and VDE in Europe.



  • In the following table connector pins are referred to as position formally, but may also be referred to as 8-pin, 37-pin, 62-pin, 68-pin, 78-pin, 96-pin, 100-pin, 160-pin, and 200-pin.
  • When using board mount connectors with NI cables, NI recommends mounting the connector to a panel, enclosure, or similar mechanical support to ensure proper strain relief.
Use this table to quickly identify connector part and part number of the board-mount, cable connectors and backshells used on NI Switch cables and accessories.
Switch Model Part Description NI Orderable Part Number Manufacturer Part Number
2515, 2535, 2536 0.8 mm VHDCI Board-Mount Connectors    
  68-Position Right Angle Single Stack PCB-Mount VHDCI (Receptacle) 785633-01 Honda HDRA-EC68LFDT2+
  68-Position Right Angle Dual Stack PCB-Mount VHDCI (Receptacle) 785634-01 Honda HDRA-E68W1LFDT1EA+
2515, 2535, 2536 0.8 mm VHDCI Cable Connectors    
  68-Position Offset IDC Cable Connector (Plug) N/A Molex 71425-3001
2501, 2503, 2533, 2534 68-Position 0.050 D-Type Board-Mount Connectors (SCSI)    
  68-Position Right Angle PCB-Mount Connector (Male) 777600-01 TE Connectivity 2-5174225-5
  68-Position Vertical PCB-Mount Connector (Male) 777601-01 TE Connectivity 2-5174339-5
2501, 2503, 2533, 2534 68-Position 0.050 D-Type Cable Connectors    
  68-Position IDC-Type Connector (Female) N/A TE Connectivity 5749699-7
  Backshell for 68-Position IDC-Type Connector (Female) N/A TE Connectivity 5749195-2
  NI 68-Position Kit including Solder-Cup Connector (Female) and Backshell, no Jackscrews 776832-01 N/A. NI kit contains the Honda solder-cup connector and backshell, below.
  68-Position Solder-Cup Connector (Female) N/A Honda PCS-E68FS+
  Backshell for 68-Position Solder-Cup Connector (Female), and Jackscrews N/A Honda PCS-E68LKAU2N
2810, 2811, 2812, 2813, 2814, 2815, 2816, 2817 96-Position 0.050 D-Type Cable Connectors (SCSI)    
  96-Position Straight  SCSI Connector (Receptacle) 782720-01 Custom
2529, 2527 100-Position HDI Board-Mount Connectors    
  100-Position HDI Mating Front Panel Connector, Right-Angle (Female) 779311-01 TE Connectivity 5532903-2
  100-Position HDI Mating Front Panel Connector, Vertical (Female) N/A AMP 5533285-1
2576 160-Position LFH Board-Mount Connectors    
  160-Position LFH Right Angle Receptacle (Female) N/A Molex 0051241041
2530B 160-Position LFH Cable Connectors    
  160- Pin LFH Right Angle Plug (Male) N/A Molex 0051251040
2575, 2569, 2570, 2571, 2569 200-Position LFH Cable Connectors    
  Plug Connector Subassembly for 200-Position LFH Mating Connector N/A Molex 71719-3000
  Pin Inserts for 200-Position LFH Mating Connector (4 required per module) N/A Molex 71715-4002
  Backshell for 200-Position LFH Mating Connector N/A Jevons JDC200B-832
2737, 2738, 2739, 2524, 2525, 2526, 2833, 2834, 2520, 2521, 2522, 2523, 2510 160-Position DIN Board-Mount Connectors    
  Connector Kit for 160-Pin DIN NI SwitchBlock (Female)1 782720-02 ERNI 284314
2737, 2738, 2739, 2524, 2525, 2526, 2520, 2521, 2522, 2523, 2510 160-Position DIN Cable Connectors    
  160-Position DIN Right Angle Connector (Male) N/A ERNI 384299
2512, 2514 8-Position D-Sub Board-Mount Connectors    
  8-position Right Angle Connector (Male) N/A ITT Cannon DCMMP8H8PJ-K87
2512, 2514 8-Position D-Sub Cable Connectors    
  8-Position Connector Housing (Female)2 N/A ITT Cannon DCMM8W8SA197
  8-Position D-Sub Connector Cable Crimp for 8 AWG Wire2 N/A ITT Cannon DM130341
2564, 2720, 2722, 2725, 2727 37-Position D-Sub Cable Connectors    
  NI 37-Position Kit including Solder-Cup Connector (Female) and Backshell, no Jackscrews 779184-01 N/A
  Backshell for 37-Position Solder-Cup Connector (Female).  Is a 62-position backshell that also fits 37-position Solder-Cup connector. N/A TE Connectivity 5206478-4
  37-Position Solder-Cup Connector (Male), 5 Amp N/A L-com SD37P
  37-Position Solder-Cup Connector (Male), 3 Amp N/A Surplus Electronic Technology 010337-00002230
  37-Position Right Angle Plug (Male) N/A KYCON K22X-C37P-N
2566, 2568 62-Position D-Sub Board-Mount Connectors    
  62 Position D-Sub Connector (male) N/A  
  62-Position D-Sub Cable Connectors    
2566 62-Position D-Sub Backshell and Connector Kit (PXI-2566) 778720-01 E-TEC SHF-57A-S101-95/T0
2568 62-Position D-Sub Receptacle (Female) N/A POSITRONIC DD62F0000X/AA
2567 78-Position D-Sub Board-Mount Connectors    
  78-Position D-Sub Right Angle Connector (Male) N/A E-TEC SHM-078-F900-55/LJ
2567 78-Position D-Sub Cable Connectors    
  78-Position D-Sub (Female) N/A E-TEC SHF-078-S101-95/T0
  Combicon Board-Mount Connectors    
2565 Mini-Combicon (Double Level) Connector N/A Phoenix Contact 1967870
2584 Combicon Connector and Backshell for PXI-2584 779168-02 N/A
2585, 2586 GMCT20 Cable Connectors    
  Connector and Backshell for PXI-258X Switches 779168-01 N/A. Contains Positronic Connector, Backshell and Mating Pins below.
  GMCT20 Mating Pins N/A Positronic FS116N2
  Connector and Backshell GMCT20 Custom Connector N/A Positronic GMCT20F0E100JC
2542, 2543, 2544, 2545, 2546, 2547, 2548, 2549, 2594, 2595, 2596, 2597, 2598, 2599, 2796, 2797, 2798, 2799 SMA Board-Mount Connectors    
  SMA Through Hole Jack Receptacle N/A Molex 733910060
2554, 2555, 2556, 2557, 2558, 2559 SMB Board-Mount Connectors    
  SMB Straight, Through Hole Jack N/A Amphenol 142210
2540, 2541, 2593, 2746, 2647, 2748 MCX Board-Mount Connectors    
  MCX Right Angle Jack N/A HUBER-SUHNER 23023859

TB-2640B, TB-2641B,

TB-2642B, TB-2643B,

TB-2644B, TB-2645B,


Ribbon Cable Connectors    
  Row- 16 Conductor .05 pitch N/A Samtec FFSD-08-01-N
  Column- 34 Conductor .05 pitch N/A Samtec FFSD-17-01-N

1The Connector Kit for the 160-Pin DIN SwitchBlock includes a grounding bar to use when working with SwitchBlock modules. If using the Connector Kit with the 273x or 252x PXI modules the grounding bar does not need to be used.
2 To create a custom cable for the NI 2512 or 2514 both the Connector Housing and Cable Crimp must be used. If you are in need of a custom cable for the NI 2512 or 2514 NI recommends evaluating to see if the DB8F-Bare Wire cable meets your needs prior to building a new cable.   


Pin to Channel Mapping

Use the table below to find the pin to channel mapping for your switch model. Some switch models have multiple topologies and will have different pinouts. For those models, select the link and find your corresponding topology to get to the correct pin diagram.


Ordering Information

For more information on any of the listed NI orderable parts, please visit to contact an NI representative. NI orderable parts listed in this guide without a product page can still be purchased by contacting NI.

For parts with a manufacturer part number, please contact the manufacturer or their vendors for further information about the product and purchasing.  Manufacturer part numbers represent functionally equivalent replacements that are currently available from the specified manufacturer. This may differ from the part found on your device, module, cable or accessory as NI continuously revises and improves their products.

Some parts are custom made for NI or are common parts in industry, and do not have orderable part numbers. Please use the specifications provided to find an appropriate part.

Glossary of Terms Used

  • Backshell - Surrounds the male or female cable connector to protect the cable connections and to provide cable strain relief. Click here for an example.
  • Cable Connector - Found on the end of the cable, may connect to a device, another cable, or an accessory through a mating connector. Click here for an example.
  • DIN (Deutsches Institut für Normung) Connector-  Industry standard connector that is used on 100-pin and 160-pin Switches cable and accessory connections.
  • D-Sub (DSUB) - Industry standard D-shaped connector that is used on 8-pin, 37-pin, 62-pin, 78-pin  Switches cable and accessory connections. Click here for an example.
  • Dual Stack - Two combined connectors stacked onto each other on a PCB-mount connector. Each connector accepts its own cable. Click here for an example.
  • Insulation Displacement Connector (IDC) - Also known as insulation-piercing contact (IPC). A type of cable connector that allows multiple conductor connections to a connector without soldering. Click here for an example.
  • LFH- Industry standard Low-Force Helix connector that is used on 160-pin and 200-pin Switches cable and accessory connections. Click here for an example.
  • PCB-Mount Connector - Also known as board-mount connector. Found on printed circuit boards (PCB), printed wiring boards (PWB) and other custom interface boards, normally soldered on. Typically a cable connector plugs into the PCB-mount connector to provide connection to an accessory or other device. Click here for an example.
  • Ribbon Cable - A low-cost unshielded cable solution. Click here for an example.
  • SCSI 0.050 D-Type -  Industry standard SCSI connector standard featuring 0.050 pin spacing that is used in 68-pin Switches cable and accessory connections. Click here for an example.
  • Single Stack - A single connector end per cable or PCB-Mount interconnect. Click here for an example.
  • Solder-Cup Connector - Opposite of the mating surface, wires are attached to the connector by soldering individual wires into cups. Click here for an example.
  • Very-High-Density Cable Interconnect (VHDCI) - An improvement on the SCSI 68-pin connector featuring .8 mm pin spacing, allowing a smaller footprint and fewer bent pins during connection. Click here for an example.

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