2.4 Diagnostic Interface
This interface facilitates the connection of a PC to the protocol converter. It con-
forms to the RS232C standard to CCITT or DIN. Only the necessary signals are
provided.
The control signals are produced and evaluated as follows:
RTS is switched to high on readiness for operation and not changed.
CTS must be connected internal with Pin 4 and 8 of D-Sub connector
A 9-way D-Sub connector to DIN 41652 is used.
Data transfer between the PC and the protocol converter takes place at 9600 Baud
and uses the following data format: 8 data bits, 1 stop bit and even parity. The
3964R protocol is used as the transfer protocol.
The PC is connected by a three-way cable which must not be longer than 15 m.
The wiring of the cable is shown below.
Diagnostic cable between the protocol converter and the PC
General device description
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