486 13 Tables and Overviews
13.2 Pin Layout and Connecting Cable for the Data Interfaces
RS-422/V.11 interface
Only non-HEIDENHAIN devices are connected to the RS-422
interface.
Ethernet interface RJ45 socket
Maximum cable length: Unshielded: 100 m
Shielded: 400 m
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.
TNC Connecting cable
355 484-xx
Adapter block
363 987-01
Female Assignment Male Color Female Male Female
1 RTS 1 Red 1 1 1
2 DTR 2 Yellow 2 2 2
3RXD
3White3 3 3
4TXD
4 Brown 4 4 4
5 Signal GND 5 Black 5 5 5
6 CTS 6 Violet 6 6 6
7DSR 7Gray777
8 RXD 8 WH/GN 8 8 8
9TXD 9Green999
Hsg. Ext. shield Hsg. Ext.
shield
Hsg. Hsg. Hsg.
Pin Signal Description
1 TX+ Transmit Data
2TX– Transmit Data
3 REC+ Receive Data
4 Vacant
5 Vacant
6REC– Receive Data
7 Vacant
8 Vacant
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