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A range of 2 pole plugs, and U-links to PO ("Post Office") design, usually used in conjunction with 4.1mm connection panels (also known as "U-link panels" and "Test Tablets"). Plugs and U-links have a pitch of 12.7mm.

U-links have a moulded insulating finger grip, with 4.1mm socket for test access (PO type 33A).

Plugs are 2 pole, with black plastic cover. These are a replacement for the now obsolete PO 231A plug, manufactured by Canford Audio.

Sockets are available with white or black nylon bodies, 46mm long, 11.5mm diameter, mounting hole 8.0mm, maximum panel thickness 5.0mm.

4.1mm patchcords are also stocked - see 231A patchcords.

  Description Price (£) Add to basket
4.1mm U-LINK Black, with test access Black Stock code:
1+ £2.05
10+ £2.00
50+ £1.95
100+ £1.90
4.1mm U-LINK Red, with test access Red Stock code:

This item is discontinued, available only while stocks last. 69 available at clearance price.

Clearance £0.85
1+ £2.05
4.1mm PLUG 231A Mk.2   Stock code:
1+ £5.60
10+ £5.46
50+ £5.32
100+ £5.18
4.1mm SOCKET White White Stock code:
1+ £2.13
10+ £2.08
50+ £2.03
100+ £1.97
4.1mm SOCKET Black Black Stock code:
1+ £2.13
10+ £2.08
50+ £2.03
100+ £1.97
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