Data Interfaces; Cable Overview; Ethernet Interface Rj45 Port; Rs-232-C/V.24 - HEIDENHAIN iTNC 530 Service Manual

21 Data Interfaces

21.1 Cable Overview

Please note:
Max. cable length with Ethernet is 400 m (shielded), 100 m (unshielded).
Maximum cable length with RS-232-C/V.24 is 20 meters.
Maximum cable length with RS-422-C/V.11 is 1000 meters.

21.1.1 Ethernet interface RJ45 port

 For the required peer-to-peer connection of your laptop and the iTNC you require a crossed
Ethernet cable.
"Peer-to-peer" means that you do not connect laptop and iTNC via the local computer
network; instead the laptop is directly connected to the iTNC.
 If you want to connect via your inhouse network, computer and control are normally
connected with non-crossed Ethernet cables ("patched").

21.1.2 RS-232-C/V.24

July 2002
Note
We recommend to mark the crossed Ethernet cable accordingly in order to avoid confusion.
Note
The RS-232-C-/V.24 data interface has different pin layouts at the iTNC (connector X27) and
at the V.24 adapter block (connector on electrical cabinet).
Exception: The cable with the Id.No. 366964-xx may be connected to the 9-pin adapter block
or directly to the control.
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