actuating handle; following contacts are wired together - A1 to P8, B2 to N7, A3 to P6, B4 to N5, A5 to P4, B6 to N3, A7 to P2, B8 to N1, C1 to M8, D2 to L7, C3 to M6, D4 to L5, C5 to M4, D6 to L3, C7 to M2, D8 to L1, E1 to K8, F2 to H8, E8 to K1, F8 to H2, F1 to H7, G7 to J1, G8 to H1, G1 to J7, G2 to J8
2b thread class right-hand contacts wired together as follows: a-b, c-d, e-f, g-h, j-k, l-m, n-p, r-s, t-u, v-w, x-y, z-lower case a, lower case b to lower case c special acme thread series
