HEIDENHAIN SHB Data Interfaces for HEIDENHAIN - Manual (Page 20)

June 2011 4 – 21
The RS-232-C-/V.24 data interface has different pin layouts at the logic unit and the V.24 adapter
block.
Diagram no. 2
RS-232-C/V.24 with adapter block for hardware handshake,
TNC 25-pin / peripheral 25-pin
Note
If the pin layout of your peripheral unit differs from the above layout, the HEIDENHAIN
connecting cable cannot be used.