RS-422/V.11 interface
Only non-HEIDENHAIN devices are connected to the RS-422
interface.
The interface complies with the requirements of
EN 50 178 for "low voltage electrical separation."
The pin layouts on the TNC logic unit (X28) and on the
adapter block are identical.
Connecting cable
TNC
355 484-xx
Female
Pin layout
Male Color
1
RTS
1
2
DTR
2
3
RXD
3
4
TXD
4
5
Signal GND
5
6
CTS
6
7
DSR
7
8
RXD
8
9
TXD
9
Hsg.
Ext. shield
Hsg.
Ethernet interface RJ45 socket
Maximum cable length:
Unshielded: 100 m
Shielded: 400 m
Pin
Signal
1
TX+
2
TX–
3
REC+
4
Vacant
5
Vacant
6
REC–
7
Vacant
8
Vacant
HEIDENHAIN iTNC 530
Adapter block
363 987-01
Female Male
Female
Red
1
1
1
Yellow
2
2
2
White
3
3
3
Brown
4
4
4
Black
5
5
5
Violet
6
6
6
Gray
7
7
7
White/
8
8
8
Green
Green
9
9
9
External
Hsg.
Hsg.
Hsg.
shield
Description
Transmit Data
Transmit Data
Receive Data
Receive Data
677
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