User Manual

6
Data and design subject to change without notice. Supply subject to availability
© Copyright by CERBERUS AG, CH-8708 Männedorf, Switzerland 1995
07.93 e1152.doc
CDDL Protocol - Data link level
4.3 Calling
Using the [DLE, SYN] sequence the master station requests to the slave station to be
enabled to transmit a packet.
If the slave station is ready to receive, it answers with the [DLE, ENQ] sequence, oth-
erwise it sends the [DLE, EOT] (wait) sequence.
The calling sequence is shown in Fig.: 3 and Fig.: 4.
Fig.: 3
Fig.: 4