21211-T	BS 6312 single telephone socket adapter
21212-T	BS 6312 double telephone socket adapter
21215	RJ12 telephone socket, 1 plug 6/4
21215.2	RJ12 telephone socket, 1 plug 6/4 2 mod.
21216	RJ12 telephone socket, 1 plug 6/6
21216.2	RJ12 telephone socket, 1 plug 6/6 2 mod.
21218	RJ45 Cat.5E data socket, 1 plug 8/8
21218.2	RJ45 Cat.5e data socket, plug 8/8 2 mod.
21218.2-T	RJ45 telephone socket adapter 2 mod.
21218-T	RJ45 telephone socket adapter
21218-TR	RJ45 telephone socket adapter
21218-TV	RJ45 telephone socket adapter
21220	RJ45 not screened data socket
21220.2	RJ45 not screened data socket
21221	RJ45 Cat.6 shielded data socket
21221.2	RJ45 Cat.6 shielded data socket 2mod