The outputs can be used e.g. for monitored activation of remote transmission
equipment 'RT' (e.g. phone dialing equipment).
The connection lines are switched with a monitoring resistor (termination resistor).
The resistance value stated corresponds to monitored normal operation. All
resistance values outside this range result in a fault message.
Enabling example for transmitting a
fault message
Termination resistor
R = 1.6 kOhm – 2.3 kOhm
Enabling example for transmitting an
alarm message
Monitoring resistor (R + Ri)
Rges = 2.3 kOhm – 5.5 kOhm
X6
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