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CM2U8567E / 04.1999 VISONIK DCS Functions and System Messages VVS18 Siemens Building Technologies
3-66 System Messages --- DCS Messages Landis & Staefa Division
MODEM "Data Set Ready" missing
STAP TYP 00:00:00 NAME
MODEM "Data Set Ready" missing
->MSGDEV (M.RDMD)
In Ring NAME there is no "Data set ready" signal from the modem to the controller (this
is a V.24 signal only).
Either the modem is really busy or the associated jumper on the Connection Unit is
missing.
Check and correctly set the jumper on the Ring Connection Unit. Otherwise, replace the
controller.
Explanation
Action