Full Description (PDF)
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…