HEIDENHAIN TNC 306 Technical Manual - Manual (Page 426)

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TNC 406/TNC 306 2 TNC data interfaces 8-13
2.2.4 Pin layouts
Note the differences between the pin layouts of the logic unit and the adapter block of the TNC. The
corresponding pin layouts are shown below (see the Chapter "Mounting and electrical installation").
ws/br
WH/BN
ws/br
WH/BN
GND Chassis
RXD
TXD
CTS
RTS
DTR
GND Signal
DSR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
• •
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
ge
gn
rs
gr
br
rt
bl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V.24-Adapter-Block
RS-232-C Adapter block
• •
•
• •
LE
Chassis GND
TXD
RXD
RTS
CTS
DSR
Signal GND
DTR
GN
YL
GY
PK
BL
RD
BN
Note: The LE and adapter block are connected with crossed lines.
A 9-pin plug on a PC should have the following pin layout:
Pin Allocation
1 Do not use
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 Do not use