Monday, September 20, 2021

How to Wiring the Neutrik Combined Connector

Fig. 1 - Schematic XLR / P10 Neutrik NCJ6FI-S Female Combined Plug Connection

Today we will give you a concise explanation of how to wire the Neutrik XLR/P10 NCJ6FI-S Combined Female connector.

This type of female connector supports two types of connectors, the connector XLR, known as "Plug Canon", which is used to connect microphones and mixers.

And the TRS (Tip-Ring-Sleeve. Tip-Ring-Cover) plug for stereo, and for mono, TS (Tip-Sleeve. Tip-Cover), the old and known as; Banana Plug, or P10, are the ones used in musical instruments, guitar, keyboard, bass, etc...

And in Figure 2 below, you can see the front and back of the XLR/P10 Female NCJ6FI-S Neutrik Combination Connector. Its structure is made of solid plastic and its connectors are located on the back of the plug.
Fig. 2 - Conector Neutrik NCJ6FI-S

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Arrangement of the pins on the Neutrik connector

There are 4 models for this type of Neutrik connector, differing in the number of pins. We will deal with all models, but the one we will use today is the most common one found on the market.

For this connector model, we have the pinout in Figure 3 below. There are 7 Contact Pins, each of which is shown with its initials, both for the TRS "P10" input, 3 pins, and for the XLR "Canon" input, 4 pins.
We begin by understanding the type of connection we will be making.
Fig. 3 - Schematic Diagram Neutrik XLR/P10 Connection

Connecting to the TRS connector

If you need to use the channels of Neutrik Female Plug separately, we have arranged the connections separately to make it easier to understand the application of the type of configuration you will be putting together. For connections using only the TRS input, we have provided the schematic diagram in Figure 4 below:
Fig. 4 - Schematic Diagram of Connection with P10 Input Connector

For connections using only the XLR input, the so-called "Plug Canon", you will find a schematic diagram in figure 5 below:
Fig. 5 - Schematic diagram of the connection with the XLR input connector.
Having understood these two configurations, it is easy to understand how to prepare a Female Neutrik Connector with the configuration of the two connected in parallel, that is, the Combined Neutrik Connector. 

This "Obvious" setting is the most commonly used. The connections using the XLR and TRS inputs are arranged in the schematic diagram in Figure 6 below:
Fig. 6 - Diagrama esquemático ligação Conector Combinado, Entrada XLR/P10

The connectors are basically a combination of the P10 connectors and the XLR connectors. You just need to "jump" the pins as shown in the table below:
  • 1 of the XLR with pin S of the TRS 
  • 2 of the XLR with pin T of the TRS 
  • 3 of the XLR with pin R of the TRS.
These numbers and these letters are arranged on the back of the Neutrik connector, and to make it easier for those who do not have much experience with these connectors, acronyms, etc. In Figures 7 and 8 you will find, one by one, the illustrations of the connectors to be connected to the P10 plugs, stereo and mono.

Pin arrangement Combined Neutrik with P10 TRS connector - Stereo Version:

Fig. 7 - Schematic diagram of the Combined Connector connection, P10 TRS input.

Arrangement of pins Combined Neutrik with P10 TS connector - Mono Version:

Fig. 8 - Schematic diagram of Combined Connector connection, P10 TS Mono Input

Main features of the Neutrik NCJ6FI-S connector

  • Combined XLR and TRS connector socket
  • Slim "front-end" design
  • Saves rack space by combining 2 connectors in a single housing
  • Horizontal or vertical PCB mounting or rigid wire soldering
  • Fully standardized
  • Stereo or mono version
  • Very low line capacitance, therefore also suitable for digital audio
  • Mounting: Self-tapping plastic and threaded screws of configuration 2.9 x 1.06 and tri-ondular (screw A)
Below is a table detailing the features of the NCJ6FI-S Female Connector, which can be purchased from the product manufacturer.

Connection typeDoble XLR / P10
Electrical Characteristics 
Resistance of Contacts < 10 mΩ (XLR)
Resistance of Contacts < 20 mΩ (Plug)
Dielectric Capacity 1,5 kVdc
Insulation Resistance > 10 GΩ (initial)
Rated current per contact 7,5 A (XLR)
Rated current per contact 7,5 A (Plug)
Rated Voltage < 50 V
Mechanical Characteristics
Insertion Force≤ 25 N
Withdrawal force≤ 25 N
Lifetime> 1000 Placement/Removal Cycles
Panel Thicknessmax. 7 mm 0.27"
Wire SizeS/T
Assembly DirectionBack Part
Contact Plating0.2 µm Ao ligation on 2 µm Knot
ContactsBronze (CuSn6)
InsertionPolyamide (PA 6.6 30% GR)
Locking ElementIron Ck67
Temperature Range-30 °C to +80 °C

If you have any questions, suggestions or corrections, please leave them in the comments and we will answer them soon.

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