HEIDENHAIN TNC 306 Service Manual - Manual (Page 28)

SERVICE MANUAL TNC 306/360
Page 24
HEIDENHAIN Service
6.3.2 Pin Layout: Keyboard Unit TE 355 A/B
X2: Connection to the Logic Unit (LE)
Flange socket with male insert (37-pin)
Pin No. Assignment
1 RL0
2 RL1
3 RL2
4 RL3 for key matrix
5 RL4
6 RL5
7 RL6
8 RL7
9 do not assign
10 do not assign
11 do not assign
12 do not assign
13 do not assign
14 do not assign
15 do not assign
16 do not assign
17 do not assign
18 do not assign
19 do not assign
20 SL0
21 SL1
22 SL2
23 SL3 for key matrix
24 SL4
25 SL5
26 SL6
27 SL7
28 do not assign
29 do not assign
30 do not assign (internally on 0V)
31 do not assign
32 do not assign
33 do not assign
34 spindle override (wiper)
35 feed override (wiper)
36 + 5 V for override potentiometer
37 0 V for override potentiometer