2 rs-422/v.11 overview, 3 ethernet overview, 4 rs-232-c/v.24 diagrams – HEIDENHAIN SHB Data Interfaces for HEIDENHAIN User Manual
Page 19: Rs-422/v.11 overview, Ethernet overview, Rs-232-c/v.24 diagrams

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HEIDENHAIN Service Manual for Data Interfaces
4.2 RS-422/V.11 Overview
4.3 Ethernet Overview
4.4 RS-232-C/V.24 Diagrams
Diagram no. 1
RS-232-C/V.24 with adapter block for software handshake,
TNC 25-pin / peripheral 25-pin
Control model
Connection diagram
TNC 406
16
TNC 407
16
TNC 415/B
16
TNC 425
16
TNC 426
16
TNC 430
16
V.11 -> V.24 converter
17
Control model
Connection diagram
TNC 426
Chapter 7.2
TNC 430
Chapter 7.2
Note
This wiring only allows transfer stop with DC3 (software handshake).