Network Terminating Unit
NTE 5 Master Sockets and VDSL Face Plates

The NTE5 is a network terminating point used in the UK.  It connects to incoming and outgoing copper wiring.   These units also act as a demarcation point and provide a method of isolating the customers wiring.

This socket allows the customer wiring to be kept separate from the PSTN.  The incoming PSTN wires are terminated on screw contacts with the provision to fit a 3 pole GDT over-voltage protection device.

Customer equipment equipment can be connected either via the Line Jack or by hard wiring onto IDC contacts fitted inside the faceplate.

Removal of the face plate exposes a socket which is used for testing the carriers line.  This provides for a clear demarcation point between network and customer wiring. 

Can be surface mounted (with back box) or flush mounted.

Accommodates a single copper telephone line.



The NTE 5B has the same function as the NTE 5A but does not have the Line Jack outlet in the faceplate.  The face plate is just used as a connection for the customer wiring.
This NTE was a "secure" version of the NTE 5A and was typically used for payphones or lines at secure locations.
NTE 5C Mark 1
This socket is shaped differently to the older NTE5 sockets in so much as the front is curved in shape.  The front plate is removable without tools and this is done by pressing the clips on either side of the plate.

Wiring connection is by "Cam Locks" which are colour coded.  The ‘Network’ connectors are RED and the ‘Home’ wiring connectors are BLUE.  No tools are required for the connection.

The Mark 1 can be identified by the blue "Cam Lock" cover.

The home wiring is no longer connected to the faceplate, which again makes it even easier to swap according to the service being installed.

NTE 5C Mark 2

An updated version of the NTE 5C.  It can be identified by the "Cam Lock" covers being clear.  Facilitates easy testing of the BT line by removal of the front lower faceplate to reveal another socket, known as the "test socket".

Uses a 2 wire "Cam Lock" connector on the rear connect to the incoming phone line and three wire "Cam Lock" connector on the front to allow the user to connect internal telephone extension wiring.

It is supplied as two pieces (rear plate with test socket, incoming line & extension connectors and front lower plate equipped with BT socket).   The socket can be flush mounted to a standard single gang back box.

The VDSL face plate Mark 4 and plate can be fitted in place of the supplied front plate.

Dimensions (L) 85mm x (W) 85mm x (H) 35.5mm.


VDSL Face Plate Mark 1
The VDSL unit fits onto a NTE5A socket and uses the original sockets front plate.  Very simple vDSL filtering is offered on this NTE. 

VDSL Mark 1


VDSL Face Plate Mark 2


VDSL Face Plate Mark 3


VDSL Face Plate Mark 4


G. Fast Faceplate



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Last revised: April 06, 2022